16. 3D Vector Graphics

  Module GL

    Description

      Not implemented OpenGL methods:

      glAreTexturesResident
      glBitmap
      glBlendColorEXT
      glCallLists
      glColorPointer
      glDeleteTextures
      glDrawElements
      glEdgeFlagPointer
      glEdgeFlagv
      glEvalMesh
      glFeedbackBuffer
      glGenTextures
      glGetBooleanv
      glGetClipPlane
      glGetDoublev
      glGetFloatv
      glGetIntegerv
      glGetLight
      glGetMap
      glGetMaterial
      glGetPixelMap
      glGetPointerv
      glGetPolygonStipple
      glGetTexEnv
      glGetTexGen
      glGetTexImage
      glGetTexLevelParameter
      glGetTexParameter
      glIndexPointer
      glInterleavedArrays
      glMap1
      glMap2
      glMapGrid
      glNormalPointer
      glPixelMap
      glPixelStore
      glPixelTransfer
      glPolygonStipple
      glPrioritizeTextures
      glReadPixels
      glRect
      glSelectBuffer
      glTexCoordPointer
      glTexImage1D
      glTexSubImage1D
      glVertexPointer

    Constant GL_2D

      `constant int GL.GL_2D`

    Description

      Used in glFeedbackBuffer

    Constant GL_2_BYTES

      `constant int GL.GL_2_BYTES`

    Description

      Used in glCallLists

    Constant GL_3D

      `constant int GL.GL_3D`

    Description

      Used in glFeedbackBuffer

    Constant GL_3D_COLOR

      `constant int GL.GL_3D_COLOR`

    Description

      Used in glFeedbackBuffer

    Constant GL_3D_COLOR_TEXTURE

      `constant int GL.GL_3D_COLOR_TEXTURE`

    Description

      Used in glFeedbackBuffer

    Constant GL_3_BYTES

      `constant int GL.GL_3_BYTES`

    Description

      Used in glCallLists

    Constant GL_4D_COLOR_TEXTURE

      `constant int GL.GL_4D_COLOR_TEXTURE`

    Description

      Used in glFeedbackBuffer

    Constant GL_4_BYTES

      `constant int GL.GL_4_BYTES`

    Description

      Used in glCallLists

    Constant GL_ABGR_EXT

      `constant int GL.GL_ABGR_EXT`

    Constant GL_ACCUM

      `constant int GL.GL_ACCUM`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glAccum, glGetDoublev and glClear

    Constant GL_ACCUM_ALPHA_BITS

      `constant int GL.GL_ACCUM_ALPHA_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glAccum and glGetDoublev

    Constant GL_ACCUM_BLUE_BITS

      `constant int GL.GL_ACCUM_BLUE_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glAccum and glGetDoublev

    Constant GL_ACCUM_BUFFER_BIT

      `constant int GL.GL_ACCUM_BUFFER_BIT`

    Description

      Used in glPopAttrib, glPushAttrib and glClear

    Constant GL_ACCUM_CLEAR_VALUE

      `constant int GL.GL_ACCUM_CLEAR_VALUE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_ACCUM_GREEN_BITS

      `constant int GL.GL_ACCUM_GREEN_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glAccum and glGetDoublev

    Constant GL_ACCUM_RED_BITS

      `constant int GL.GL_ACCUM_RED_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glAccum and glGetDoublev

    Constant GL_ADD

      `constant int GL.GL_ADD`

    Description

      Used in glAccum

    Constant GL_ALL_ATTRIB_BITS

      `constant int GL.GL_ALL_ATTRIB_BITS`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_ALPHA

      `constant int GL.GL_ALPHA`

    Description

      Used in glIsEnabled, glTexEnv, glGetIntegerv, glDrawPixels, glDisable, glCopyTexImage1D, glTexSubImage2D, glPopAttrib, glEnable, glPixelTransfer, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glAlphaFunc, glReadPixels, glCopyTexImage2D, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_ALPHA12

      `constant int GL.GL_ALPHA12`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_ALPHA16

      `constant int GL.GL_ALPHA16`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_ALPHA4

      `constant int GL.GL_ALPHA4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_ALPHA8

      `constant int GL.GL_ALPHA8`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_ALPHA_BIAS

      `constant int GL.GL_ALPHA_BIAS`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_ALPHA_BITS

      `constant int GL.GL_ALPHA_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_ALPHA_SCALE

      `constant int GL.GL_ALPHA_SCALE`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_ALPHA_TEST

      `constant int GL.GL_ALPHA_TEST`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glAlphaFunc

    Constant GL_ALPHA_TEST_FUNC

      `constant int GL.GL_ALPHA_TEST_FUNC`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_ALPHA_TEST_REF

      `constant int GL.GL_ALPHA_TEST_REF`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_ALWAYS

      `constant int GL.GL_ALWAYS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev, glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_AMBIENT

      `constant int GL.GL_AMBIENT`

    Description

      Used in glGetIntegerv, glColorMaterial, glGetLight, glGetBooleanv, glGetFloatv, glMaterial, glGetDoublev, glLight and glGetMaterial

    Constant GL_AMBIENT_AND_DIFFUSE

      `constant int GL.GL_AMBIENT_AND_DIFFUSE`

    Description

      Used in glGetIntegerv, glColorMaterial, glGetBooleanv, glGetFloatv, glMaterial and glGetDoublev

    Constant GL_AND

      `constant int GL.GL_AND`

    Description

      Used in glLogicOp

    Constant GL_AND_INVERTED

      `constant int GL.GL_AND_INVERTED`

    Description

      Used in glLogicOp

    Constant GL_AND_REVERSE

      `constant int GL.GL_AND_REVERSE`

    Description

      Used in glLogicOp

    Constant GL_ATTRIB_STACK_DEPTH

      `constant int GL.GL_ATTRIB_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_AUTO_NORMAL

      `constant int GL.GL_AUTO_NORMAL`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glEvalCoord

    Constant GL_AUX0

      `constant int GL.GL_AUX0`

    Description

      Used in glReadBuffer

    Constant GL_AUX1

      `constant int GL.GL_AUX1`

    Constant GL_AUX2

      `constant int GL.GL_AUX2`

    Constant GL_AUX3

      `constant int GL.GL_AUX3`

    Description

      Used in glReadBuffer

    Constant GL_AUX_BUFFERS

      `constant int GL.GL_AUX_BUFFERS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glReadBuffer, glGetDoublev and glDrawBuffer

    Constant GL_AVERAGE_EXT

      `constant int GL.GL_AVERAGE_EXT`

    Constant GL_BACK

      `constant int GL.GL_BACK`

    Description

      Used in glGetIntegerv, glColorMaterial, glCullFace, glPolygonMode, glGetBooleanv, glGetFloatv, glReadBuffer, glMaterial, glGetDoublev, glDrawBuffer and glGetMaterial

    Constant GL_BACK_LEFT

      `constant int GL.GL_BACK_LEFT`

    Description

      Used in glReadBuffer and glDrawBuffer

    Constant GL_BACK_RIGHT

      `constant int GL.GL_BACK_RIGHT`

    Description

      Used in glReadBuffer and glDrawBuffer

    Constant GL_BGR

      `constant int GL.GL_BGR`

    Constant GL_BGRA

      `constant int GL.GL_BGRA`

    Constant GL_BITMAP

      `constant int GL.GL_BITMAP`

    Description

      Used in glDrawPixels, glTexSubImage2D, glGetTexImage, glReadPixels, glTexImage2D, glFeedbackBuffer, glGetPolygonStipple, glBitmap, glTexSubImage1D, glTexImage1D and glPolygonStipple

    Constant GL_BITMAP_TOKEN

      `constant int GL.GL_BITMAP_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_BLEND

      `constant int GL.GL_BLEND`

    Description

      Used in glIsEnabled, glTexEnv, glGetIntegerv, glBlendColorEXT, glBlendFunc, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_BLEND_COLOR_EXT

      `constant int GL.GL_BLEND_COLOR_EXT`

    Description

      Used in glGetIntegerv, glBlendColorEXT, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_BLEND_DST

      `constant int GL.GL_BLEND_DST`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_BLEND_EQUATION_EXT

      `constant int GL.GL_BLEND_EQUATION_EXT`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_BLEND_SRC

      `constant int GL.GL_BLEND_SRC`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_BLUE

      `constant int GL.GL_BLUE`

    Description

      Used in glGetIntegerv, glDrawPixels, glTexSubImage2D, glPopAttrib, glPixelTransfer, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_BLUE_BIAS

      `constant int GL.GL_BLUE_BIAS`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_BLUE_BITS

      `constant int GL.GL_BLUE_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_BLUE_SCALE

      `constant int GL.GL_BLUE_SCALE`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_BYTE

      `constant int GL.GL_BYTE`

    Description

      Used in glDrawPixels, glColorPointer, glTexSubImage2D, glNormalPointer, glGetTexImage, glCallLists, glReadPixels, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_C3F_V3F

      `constant int GL.GL_C3F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_C4F_N3F_V3F

      `constant int GL.GL_C4F_N3F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_C4UB_V2F

      `constant int GL.GL_C4UB_V2F`

    Description

      Used in glInterleavedArrays

    Constant GL_C4UB_V3F

      `constant int GL.GL_C4UB_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_CCW

      `constant int GL.GL_CCW`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glFrontFace

    Constant GL_CLAMP

      `constant int GL.GL_CLAMP`

    Description

      Used in glTexParameter

    Constant GL_CLEAR

      `constant int GL.GL_CLEAR`

    Description

      Used in glLogicOp

    Constant GL_CLIENT_ALL_ATTRIB_BITS

      `constant int GL.GL_CLIENT_ALL_ATTRIB_BITS`

    Description

      Used in glPopClientAttrib and glPushClientAttrib

    Constant GL_CLIENT_ATTRIB_STACK_DEPTH

      `constant int GL.GL_CLIENT_ATTRIB_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_CLIENT_PIXEL_STORE_BIT

      `constant int GL.GL_CLIENT_PIXEL_STORE_BIT`

    Description

      Used in glPopClientAttrib and glPushClientAttrib

    Constant GL_CLIENT_VERTEX_ARRAY_BIT

      `constant int GL.GL_CLIENT_VERTEX_ARRAY_BIT`

    Description

      Used in glPopClientAttrib and glPushClientAttrib

    Constant GL_CLIP_PLANE0

      `constant int GL.GL_CLIP_PLANE0`

    Constant GL_CLIP_PLANE1

      `constant int GL.GL_CLIP_PLANE1`

    Constant GL_CLIP_PLANE2

      `constant int GL.GL_CLIP_PLANE2`

    Constant GL_CLIP_PLANE3

      `constant int GL.GL_CLIP_PLANE3`

    Constant GL_CLIP_PLANE4

      `constant int GL.GL_CLIP_PLANE4`

    Constant GL_CLIP_PLANE5

      `constant int GL.GL_CLIP_PLANE5`

    Constant GL_COEFF

      `constant int GL.GL_COEFF`

    Description

      Used in glGetMap

    Constant GL_COLOR

      `constant int GL.GL_COLOR`

    Description

      Used in glIsEnabled, glGetIntegerv, glDrawElements, glDrawArrays, glColorMaterial, glDrawPixels, glDisable, glColorPointer, glTexSubImage2D, glPopAttrib, glEnable, glEnableClientState, glGetPointerv, glPixelTransfer, glLogicOp, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glMaterial, glGetDoublev, glReadPixels, glTexImage2D, glGetPolygonStipple, glBitmap, glCopyPixels, glLightModel, glDisableClientState, glTexSubImage1D, glTexImage1D, glGetMaterial, glClear and glPolygonStipple

    Constant GL_COLOR_ARRAY

      `constant int GL.GL_COLOR_ARRAY`

    Description

      Used in glIsEnabled, glGetIntegerv, glDrawElements, glDrawArrays, glColorPointer, glEnableClientState, glGetPointerv, glGetBooleanv, glGetFloatv, glGetDoublev and glDisableClientState

    Constant GL_COLOR_ARRAY_POINTER

      `constant int GL.GL_COLOR_ARRAY_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_COLOR_ARRAY_SIZE

      `constant int GL.GL_COLOR_ARRAY_SIZE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_COLOR_ARRAY_STRIDE

      `constant int GL.GL_COLOR_ARRAY_STRIDE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_COLOR_ARRAY_TYPE

      `constant int GL.GL_COLOR_ARRAY_TYPE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_COLOR_BUFFER_BIT

      `constant int GL.GL_COLOR_BUFFER_BIT`

    Description

      Used in glPopAttrib, glPushAttrib and glClear

    Constant GL_COLOR_CLEAR_VALUE

      `constant int GL.GL_COLOR_CLEAR_VALUE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_COLOR_INDEX

      `constant int GL.GL_COLOR_INDEX`

    Description

      Used in glDrawPixels, glTexSubImage2D, glPixelTransfer, glGetTexImage, glMaterial, glReadPixels, glTexImage2D, glGetPolygonStipple, glBitmap, glLightModel, glTexSubImage1D, glTexImage1D, glGetMaterial and glPolygonStipple

    Constant GL_COLOR_INDEXES

      `constant int GL.GL_COLOR_INDEXES`

    Description

      Used in glMaterial, glLightModel and glGetMaterial

    Constant GL_COLOR_LOGIC_OP

      `constant int GL.GL_COLOR_LOGIC_OP`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glLogicOp, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_COLOR_MATERIAL

      `constant int GL.GL_COLOR_MATERIAL`

    Description

      Used in glIsEnabled, glGetIntegerv, glColorMaterial, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_COLOR_MATERIAL_FACE

      `constant int GL.GL_COLOR_MATERIAL_FACE`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_COLOR_MATERIAL_PARAMETER

      `constant int GL.GL_COLOR_MATERIAL_PARAMETER`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_COLOR_TABLE_ALPHA_SIZE_SGI

      `constant int GL.GL_COLOR_TABLE_ALPHA_SIZE_SGI`

    Constant GL_COLOR_TABLE_BIAS_SGI

      `constant int GL.GL_COLOR_TABLE_BIAS_SGI`

    Constant GL_COLOR_TABLE_BLUE_SIZE_SGI

      `constant int GL.GL_COLOR_TABLE_BLUE_SIZE_SGI`

    Constant GL_COLOR_TABLE_FORMAT_SGI

      `constant int GL.GL_COLOR_TABLE_FORMAT_SGI`

    Constant GL_COLOR_TABLE_GREEN_SIZE_SGI

      `constant int GL.GL_COLOR_TABLE_GREEN_SIZE_SGI`

    Constant GL_COLOR_TABLE_INTENSITY_SIZE_SGI

      `constant int GL.GL_COLOR_TABLE_INTENSITY_SIZE_SGI`

    Constant GL_COLOR_TABLE_LUMINANCE_SIZE_SGI

      `constant int GL.GL_COLOR_TABLE_LUMINANCE_SIZE_SGI`

    Constant GL_COLOR_TABLE_RED_SIZE_SGI

      `constant int GL.GL_COLOR_TABLE_RED_SIZE_SGI`

    Constant GL_COLOR_TABLE_SCALE_SGI

      `constant int GL.GL_COLOR_TABLE_SCALE_SGI`

    Constant GL_COLOR_TABLE_SGI

      `constant int GL.GL_COLOR_TABLE_SGI`

    Constant GL_COLOR_TABLE_WIDTH_SGI

      `constant int GL.GL_COLOR_TABLE_WIDTH_SGI`

    Constant GL_COLOR_WRITEMASK

      `constant int GL.GL_COLOR_WRITEMASK`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_COMPILE

      `constant int GL.GL_COMPILE`

    Description

      Used in glNewList and glEndList

    Constant GL_COMPILE_AND_EXECUTE

      `constant int GL.GL_COMPILE_AND_EXECUTE`

    Description

      Used in glNewList and glEndList

    Constant GL_COMPRESSED_GEOM_ACCELERATED_SUNX

      `constant int GL.GL_COMPRESSED_GEOM_ACCELERATED_SUNX`

    Constant GL_COMPRESSED_GEOM_VERSION_SUNX

      `constant int GL.GL_COMPRESSED_GEOM_VERSION_SUNX`

    Constant GL_CONSTANT_ALPHA_EXT

      `constant int GL.GL_CONSTANT_ALPHA_EXT`

    Constant GL_CONSTANT_ATTENUATION

      `constant int GL.GL_CONSTANT_ATTENUATION`

    Description

      Used in glGetLight and glLight

    Constant GL_CONSTANT_BORDER_HP

      `constant int GL.GL_CONSTANT_BORDER_HP`

    Constant GL_CONSTANT_COLOR_EXT

      `constant int GL.GL_CONSTANT_COLOR_EXT`

    Constant GL_CONVOLUTION_1D_EXT

      `constant int GL.GL_CONVOLUTION_1D_EXT`

    Constant GL_CONVOLUTION_2D_EXT

      `constant int GL.GL_CONVOLUTION_2D_EXT`

    Constant GL_CONVOLUTION_BORDER_COLOR_HP

      `constant int GL.GL_CONVOLUTION_BORDER_COLOR_HP`

    Constant GL_CONVOLUTION_BORDER_MODE_EXT

      `constant int GL.GL_CONVOLUTION_BORDER_MODE_EXT`

    Constant GL_CONVOLUTION_FILTER_BIAS_EXT

      `constant int GL.GL_CONVOLUTION_FILTER_BIAS_EXT`

    Constant GL_CONVOLUTION_FILTER_SCALE_EXT

      `constant int GL.GL_CONVOLUTION_FILTER_SCALE_EXT`

    Constant GL_CONVOLUTION_FORMAT_EXT

      `constant int GL.GL_CONVOLUTION_FORMAT_EXT`

    Constant GL_CONVOLUTION_HEIGHT_EXT

      `constant int GL.GL_CONVOLUTION_HEIGHT_EXT`

    Constant GL_CONVOLUTION_WIDTH_EXT

      `constant int GL.GL_CONVOLUTION_WIDTH_EXT`

    Constant GL_COPY

      `constant int GL.GL_COPY`

    Description

      Used in glGetIntegerv, glLogicOp, glGetBooleanv, glGetFloatv, glGetDoublev and glFeedbackBuffer

    Constant GL_COPY_INVERTED

      `constant int GL.GL_COPY_INVERTED`

    Description

      Used in glLogicOp

    Constant GL_COPY_PIXEL_TOKEN

      `constant int GL.GL_COPY_PIXEL_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_CUBIC_EXT

      `constant int GL.GL_CUBIC_EXT`

    Constant GL_CULL_FACE

      `constant int GL.GL_CULL_FACE`

    Description

      Used in glIsEnabled, glGetIntegerv, glCullFace, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glFrontFace

    Constant GL_CULL_FACE_MODE

      `constant int GL.GL_CULL_FACE_MODE`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_CURRENT_BIT

      `constant int GL.GL_CURRENT_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_CURRENT_COLOR

      `constant int GL.GL_CURRENT_COLOR`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_INDEX

      `constant int GL.GL_CURRENT_INDEX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_NORMAL

      `constant int GL.GL_CURRENT_NORMAL`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_CURRENT_RASTER_COLOR

      `constant int GL.GL_CURRENT_RASTER_COLOR`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_RASTER_DISTANCE

      `constant int GL.GL_CURRENT_RASTER_DISTANCE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_RASTER_INDEX

      `constant int GL.GL_CURRENT_RASTER_INDEX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_RASTER_POSITION

      `constant int GL.GL_CURRENT_RASTER_POSITION`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_RASTER_POSITION_VALID

      `constant int GL.GL_CURRENT_RASTER_POSITION_VALID`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_RASTER_TEXTURE_COORDS

      `constant int GL.GL_CURRENT_RASTER_TEXTURE_COORDS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CURRENT_TEXTURE_COORDS

      `constant int GL.GL_CURRENT_TEXTURE_COORDS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glRasterPos

    Constant GL_CW

      `constant int GL.GL_CW`

    Description

      Used in glFrontFace

    Constant GL_DECAL

      `constant int GL.GL_DECAL`

    Description

      Used in glTexEnv

    Constant GL_DECR

      `constant int GL.GL_DECR`

    Description

      Used in glStencilOp

    Constant GL_DEPTH

      `constant int GL.GL_DEPTH`

    Description

      Used in glIsEnabled, glGetIntegerv, glDrawPixels, glDisable, glPopAttrib, glEnable, glPixelTransfer, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glCopyPixels, glDepthFunc, glTexImage1D and glClear

    Constant GL_DEPTH_BIAS

      `constant int GL.GL_DEPTH_BIAS`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels and glCopyPixels

    Constant GL_DEPTH_BITS

      `constant int GL.GL_DEPTH_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_DEPTH_BUFFER_BIT

      `constant int GL.GL_DEPTH_BUFFER_BIT`

    Description

      Used in glPopAttrib, glPushAttrib and glClear

    Constant GL_DEPTH_CLEAR_VALUE

      `constant int GL.GL_DEPTH_CLEAR_VALUE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_DEPTH_COMPONENT

      `constant int GL.GL_DEPTH_COMPONENT`

    Description

      Used in glDrawPixels, glGetTexImage, glReadPixels, glTexImage2D and glTexImage1D

    Constant GL_DEPTH_FUNC

      `constant int GL.GL_DEPTH_FUNC`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_DEPTH_RANGE

      `constant int GL.GL_DEPTH_RANGE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_DEPTH_SCALE

      `constant int GL.GL_DEPTH_SCALE`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels and glCopyPixels

    Constant GL_DEPTH_TEST

      `constant int GL.GL_DEPTH_TEST`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glDepthFunc

    Constant GL_DEPTH_WRITEMASK

      `constant int GL.GL_DEPTH_WRITEMASK`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_DIFFUSE

      `constant int GL.GL_DIFFUSE`

    Description

      Used in glColorMaterial, glGetLight, glMaterial, glLight and glGetMaterial

    Constant GL_DITHER

      `constant int GL.GL_DITHER`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_DOMAIN

      `constant int GL.GL_DOMAIN`

    Description

      Used in glGetMap

    Constant GL_DONT_CARE

      `constant int GL.GL_DONT_CARE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glHint

    Constant GL_DOUBLE

      `constant int GL.GL_DOUBLE`

    Description

      Used in glGetIntegerv, glVertexPointer, glColorPointer, glNormalPointer, glGetBooleanv, glGetFloatv, glGetDoublev, glTexCoordPointer and glIndexPointer

    Constant GL_DOUBLEBUFFER

      `constant int GL.GL_DOUBLEBUFFER`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_DRAW_BUFFER

      `constant int GL.GL_DRAW_BUFFER`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_DRAW_PIXEL_TOKEN

      `constant int GL.GL_DRAW_PIXEL_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_DST_ALPHA

      `constant int GL.GL_DST_ALPHA`

    Description

      Used in glBlendFunc

    Constant GL_DST_COLOR

      `constant int GL.GL_DST_COLOR`

    Description

      Used in glBlendFunc

    Constant GL_EDGE_FLAG

      `constant int GL.GL_EDGE_FLAG`

    Description

      Used in glIsEnabled, glGetIntegerv, glPopAttrib, glEnableClientState, glGetPointerv, glGetBooleanv, glPushAttrib, glGetFloatv, glEdgeFlagPointer, glGetDoublev and glDisableClientState

    Constant GL_EDGE_FLAG_ARRAY

      `constant int GL.GL_EDGE_FLAG_ARRAY`

    Description

      Used in glIsEnabled, glGetIntegerv, glEnableClientState, glGetPointerv, glGetBooleanv, glGetFloatv, glEdgeFlagPointer, glGetDoublev and glDisableClientState

    Constant GL_EDGE_FLAG_ARRAY_POINTER

      `constant int GL.GL_EDGE_FLAG_ARRAY_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_EDGE_FLAG_ARRAY_STRIDE

      `constant int GL.GL_EDGE_FLAG_ARRAY_STRIDE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_EMISSION

      `constant int GL.GL_EMISSION`

    Description

      Used in glColorMaterial, glMaterial and glGetMaterial

    Constant GL_ENABLE_BIT

      `constant int GL.GL_ENABLE_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_EQUAL

      `constant int GL.GL_EQUAL`

    Description

      Used in glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_EQUIV

      `constant int GL.GL_EQUIV`

    Description

      Used in glLogicOp

    Constant GL_EVAL_BIT

      `constant int GL.GL_EVAL_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_EXP

      `constant int GL.GL_EXP`

    Description

      Used in glFog, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_EXP2

      `constant int GL.GL_EXP2`

    Description

      Used in glFog

    Constant GL_EXTENSIONS

      `constant int GL.GL_EXTENSIONS`

    Description

      Used in glGetString

    Constant GL_EXT_abgr

      `constant int GL.GL_EXT_abgr`

    Constant GL_EXT_blend_color

      `constant int GL.GL_EXT_blend_color`

    Constant GL_EXT_blend_minmax

      `constant int GL.GL_EXT_blend_minmax`

    Constant GL_EXT_blend_subtract

      `constant int GL.GL_EXT_blend_subtract`

    Constant GL_EXT_convolution

      `constant int GL.GL_EXT_convolution`

    Constant GL_EXT_histogram

      `constant int GL.GL_EXT_histogram`

    Constant GL_EXT_pixel_transform

      `constant int GL.GL_EXT_pixel_transform`

    Constant GL_EXT_rescale_normal

      `constant int GL.GL_EXT_rescale_normal`

    Constant GL_EXT_texture3D

      `constant int GL.GL_EXT_texture3D`

    Constant GL_EYE_LINEAR

      `constant int GL.GL_EYE_LINEAR`

    Description

      Used in glGetTexGen and glTexGen

    Constant GL_EYE_PLANE

      `constant int GL.GL_EYE_PLANE`

    Description

      Used in glGetTexGen and glTexGen

    Constant GL_FALSE

      `constant int GL.GL_FALSE`

    Description

      Used in glIsEnabled, glDepthMask, glIsList, glAreTexturesResident, glGetIntegerv, glIsTexture, glDisable, glEdgeFlag, glEnable, glColorMask, glGetBooleanv, glGetFloatv, glGetDoublev and glEdgeFlagv

    Constant GL_FASTEST

      `constant int GL.GL_FASTEST`

    Description

      Used in glHint

    Constant GL_FEEDBACK

      `constant int GL.GL_FEEDBACK`

    Description

      Used in glRenderMode, glPassThrough, glGetPointerv and glFeedbackBuffer

    Constant GL_FEEDBACK_BUFFER_POINTER

      `constant int GL.GL_FEEDBACK_BUFFER_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_FEEDBACK_BUFFER_SIZE

      `constant int GL.GL_FEEDBACK_BUFFER_SIZE`

    Constant GL_FEEDBACK_BUFFER_TYPE

      `constant int GL.GL_FEEDBACK_BUFFER_TYPE`

    Constant GL_FILL

      `constant int GL.GL_FILL`

    Description

      Used in glGetIntegerv, glDisable, glEnable, glPolygonMode, glGetBooleanv, glGetFloatv, glGetDoublev and glEvalMesh

    Constant GL_FLAT

      `constant int GL.GL_FLAT`

    Description

      Used in glShadeModel

    Constant GL_FLOAT

      `constant int GL.GL_FLOAT`

    Description

      Used in glGetIntegerv, glDrawPixels, glVertexPointer, glColorPointer, glTexSubImage2D, glNormalPointer, glGetBooleanv, glGetTexImage, glGetFloatv, glGetDoublev, glCallLists, glReadPixels, glTexImage2D, glTexCoordPointer, glIndexPointer, glTexSubImage1D and glTexImage1D

    Constant GL_FOG

      `constant int GL.GL_FOG`

    Description

      Used in glIsEnabled, glFog, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_FOG_BIT

      `constant int GL.GL_FOG_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_FOG_COLOR

      `constant int GL.GL_FOG_COLOR`

    Description

      Used in glFog, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_FOG_DENSITY

      `constant int GL.GL_FOG_DENSITY`

    Description

      Used in glFog, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_FOG_END

      `constant int GL.GL_FOG_END`

    Description

      Used in glFog, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_FOG_HINT

      `constant int GL.GL_FOG_HINT`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_FOG_INDEX

      `constant int GL.GL_FOG_INDEX`

    Description

      Used in glFog, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_FOG_MODE

      `constant int GL.GL_FOG_MODE`

    Description

      Used in glFog, glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_FOG_START

      `constant int GL.GL_FOG_START`

    Description

      Used in glFog, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_FRONT

      `constant int GL.GL_FRONT`

    Description

      Used in glGetIntegerv, glColorMaterial, glCullFace, glPopAttrib, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glReadBuffer, glMaterial, glGetDoublev, glDrawBuffer and glGetMaterial

    Constant GL_FRONT_AND_BACK

      `constant int GL.GL_FRONT_AND_BACK`

    Description

      Used in glGetIntegerv, glColorMaterial, glCullFace, glPolygonMode, glGetBooleanv, glGetFloatv, glMaterial, glGetDoublev and glDrawBuffer

    Constant GL_FRONT_FACE

      `constant int GL.GL_FRONT_FACE`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_FRONT_LEFT

      `constant int GL.GL_FRONT_LEFT`

    Description

      Used in glReadBuffer and glDrawBuffer

    Constant GL_FRONT_RIGHT

      `constant int GL.GL_FRONT_RIGHT`

    Description

      Used in glReadBuffer and glDrawBuffer

    Constant GL_FUNC_ADD_EXT

      `constant int GL.GL_FUNC_ADD_EXT`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_FUNC_REVERSE_SUBTRACT_EXT

      `constant int GL.GL_FUNC_REVERSE_SUBTRACT_EXT`

    Constant GL_FUNC_SUBTRACT_EXT

      `constant int GL.GL_FUNC_SUBTRACT_EXT`

    Constant GL_GEQUAL

      `constant int GL.GL_GEQUAL`

    Description

      Used in glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_GREATER

      `constant int GL.GL_GREATER`

    Description

      Used in glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_GREEN

      `constant int GL.GL_GREEN`

    Description

      Used in glGetIntegerv, glDrawPixels, glTexSubImage2D, glPopAttrib, glPixelTransfer, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_GREEN_BIAS

      `constant int GL.GL_GREEN_BIAS`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_GREEN_BITS

      `constant int GL.GL_GREEN_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_GREEN_SCALE

      `constant int GL.GL_GREEN_SCALE`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_HINT_BIT

      `constant int GL.GL_HINT_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_HISTOGRAM_ALPHA_SIZE_EXT

      `constant int GL.GL_HISTOGRAM_ALPHA_SIZE_EXT`

    Constant GL_HISTOGRAM_BLUE_SIZE_EXT

      `constant int GL.GL_HISTOGRAM_BLUE_SIZE_EXT`

    Constant GL_HISTOGRAM_EXT

      `constant int GL.GL_HISTOGRAM_EXT`

    Constant GL_HISTOGRAM_FORMAT_EXT

      `constant int GL.GL_HISTOGRAM_FORMAT_EXT`

    Constant GL_HISTOGRAM_GREEN_SIZE_EXT

      `constant int GL.GL_HISTOGRAM_GREEN_SIZE_EXT`

    Constant GL_HISTOGRAM_LUMINANCE_SIZE_EXT

      `constant int GL.GL_HISTOGRAM_LUMINANCE_SIZE_EXT`

    Constant GL_HISTOGRAM_RED_SIZE_EXT

      `constant int GL.GL_HISTOGRAM_RED_SIZE_EXT`

    Constant GL_HISTOGRAM_SINK_EXT

      `constant int GL.GL_HISTOGRAM_SINK_EXT`

    Constant GL_HISTOGRAM_WIDTH_EXT

      `constant int GL.GL_HISTOGRAM_WIDTH_EXT`

    Constant GL_HP_convolution_border_modes

      `constant int GL.GL_HP_convolution_border_modes`

    Constant GL_HP_occlusion_test

      `constant int GL.GL_HP_occlusion_test`

    Constant GL_IGNORE_BORDER_HP

      `constant int GL.GL_IGNORE_BORDER_HP`

    Constant GL_INCR

      `constant int GL.GL_INCR`

    Description

      Used in glStencilOp

    Constant GL_INDEX_ARRAY

      `constant int GL.GL_INDEX_ARRAY`

    Description

      Used in glIsEnabled, glGetIntegerv, glEnableClientState, glGetPointerv, glGetBooleanv, glGetFloatv, glGetDoublev, glIndexPointer and glDisableClientState

    Constant GL_INDEX_ARRAY_POINTER

      `constant int GL.GL_INDEX_ARRAY_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_INDEX_ARRAY_STRIDE

      `constant int GL.GL_INDEX_ARRAY_STRIDE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_INDEX_ARRAY_TYPE

      `constant int GL.GL_INDEX_ARRAY_TYPE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_INDEX_BITS

      `constant int GL.GL_INDEX_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_INDEX_CLEAR_VALUE

      `constant int GL.GL_INDEX_CLEAR_VALUE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_INDEX_LOGIC_OP

      `constant int GL.GL_INDEX_LOGIC_OP`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glLogicOp, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_INDEX_MODE

      `constant int GL.GL_INDEX_MODE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_INDEX_OFFSET

      `constant int GL.GL_INDEX_OFFSET`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glCopyPixels and glTexImage1D

    Constant GL_INDEX_SHIFT

      `constant int GL.GL_INDEX_SHIFT`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glCopyPixels and glTexImage1D

    Constant GL_INDEX_WRITEMASK

      `constant int GL.GL_INDEX_WRITEMASK`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_INT

      `constant int GL.GL_INT`

    Description

      Used in glTexEnv, glDrawPixels, glVertexPointer, glColorPointer, glCopyTexImage1D, glTexSubImage2D, glNormalPointer, glGetTexImage, glCallLists, glReadPixels, glCopyTexImage2D, glTexImage2D, glTexCoordPointer, glIndexPointer, glTexSubImage1D and glTexImage1D

    Constant GL_INTENSITY

      `constant int GL.GL_INTENSITY`

    Description

      Used in glTexEnv, glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_INTENSITY12

      `constant int GL.GL_INTENSITY12`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_INTENSITY16

      `constant int GL.GL_INTENSITY16`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_INTENSITY4

      `constant int GL.GL_INTENSITY4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_INTENSITY8

      `constant int GL.GL_INTENSITY8`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_INVALID_ENUM

      `constant int GL.GL_INVALID_ENUM`

    Description

      Used in glMatrixMode, glPixelStore, glIsEnabled, glGetTexLevelParameter, glFog, glTexEnv, glMap1, glRenderMode, glGetTexGen, glGetIntegerv, glEnd, glDrawElements, glDrawArrays, glCopyTexSubImage2D, glColorMaterial, glBindTexture, glGetClipPlane, glCullFace, glGetError, glClipPlane, glDrawPixels, glBlendFunc, glVertexPointer, glGetLight, glDisable, glMap2, glColorPointer, glCopyTexImage1D, glGetPixelMap, glTexSubImage2D, glNormalPointer, glEnable, glEnableClientState, glGetPointerv, glPixelTransfer, glPolygonMode, glGetTexParameter, glLogicOp, glGetBooleanv, glGetTexImage, glPixelMap, glGetFloatv, glGetMap, glAccum, glReadBuffer, glMaterial, glEdgeFlagPointer, glGetDoublev, glCallLists, glInterleavedArrays, glAlphaFunc, glShadeModel, glNewList, glReadPixels, glCopyTexImage2D, glTexImage2D, glGetTexEnv, glFeedbackBuffer, glEndList, glBegin, glLight, glStencilOp, glTexCoordPointer, glCopyPixels, glDepthFunc, glLightModel, glIndexPointer, glGetString, glTexParameter, glDisableClientState, glTexSubImage1D, glDrawBuffer, glHint, glTexImage1D, glStencilFunc, glGetMaterial, glCopyTexSubImage1D, glFrontFace, glEvalMesh and glTexGen

    Constant GL_INVALID_OPERATION

      `constant int GL.GL_INVALID_OPERATION`

    Description

      Used in glPolygonOffset, glPushMatrix, glMatrixMode, glLoadName, glPixelStore, glIsEnabled, glGetTexLevelParameter, glGenTextures, glFog, glTexEnv, glClearColor, glMap1, glPrioritizeTextures, glDepthMask, glPushName, glRenderMode, glMultMatrix, glIsList, glFrustum, glDepthRange, glAreTexturesResident, glDeleteTextures, glGetTexGen, glGetIntegerv, glEnd, glIsTexture, glDrawElements, glGenLists, glBlendColorEXT, glViewport, glDrawArrays, glCopyTexSubImage2D, glColorMaterial, glBindTexture, glGetClipPlane, glFinish, glCullFace, glGetError, glStencilMask, glClipPlane, glDrawPixels, glBlendFunc, glSelectBuffer, glGetLight, glInitNames, glPassThrough, glDisable, glMap2, glLineStipple, glCopyTexImage1D, glGetPixelMap, glTexSubImage2D, glPopAttrib, glEnable, glListBase, glColorMask, glPixelTransfer, glPolygonMode, glGetTexParameter, glPopName, glLogicOp, glIndexMask, glGetBooleanv, glGetTexImage, glPixelMap, glTranslate, glPushAttrib, glGetFloatv, glGetMap, glAccum, glReadBuffer, glGetDoublev, glClearDepth, glRasterPos, glAlphaFunc, glShadeModel, glNewList, glReadPixels, glCopyTexImage2D, glRect, glTexImage2D, glGetTexEnv, glClearIndex, glFeedbackBuffer, glRotate, glEndList, glBegin, glLight, glGetPolygonStipple, glStencilOp, glClearStencil, glBitmap, glScale, glCopyPixels, glFlush, glOrtho, glDepthFunc, glMapGrid, glLightModel, glGetString, glTexParameter, glScissor, glTexSubImage1D, glLoadIdentity, glPixelZoom, glDrawBuffer, glLineWidth, glHint, glTexImage1D, glStencilFunc, glGetMaterial, glClear, glCopyTexSubImage1D, glPopMatrix, glPointSize, glPolygonStipple, glFrontFace, glLoadMatrix, glEvalMesh, glTexGen, glClearAccum and glDeleteLists

    Constant GL_INVALID_VALUE

      `constant int GL.GL_INVALID_VALUE`

    Description

      Used in glPixelStore, glGetTexLevelParameter, glGenTextures, glFog, glMap1, glPrioritizeTextures, glFrustum, glAreTexturesResident, glDeleteTextures, glDrawElements, glGenLists, glViewport, glDrawArrays, glCopyTexSubImage2D, glGetError, glDrawPixels, glVertexPointer, glSelectBuffer, glMap2, glColorPointer, glCopyTexImage1D, glTexSubImage2D, glNormalPointer, glGetTexImage, glPixelMap, glMaterial, glCallLists, glInterleavedArrays, glNewList, glReadPixels, glCopyTexImage2D, glTexImage2D, glFeedbackBuffer, glEndList, glLight, glBitmap, glTexCoordPointer, glCopyPixels, glMapGrid, glIndexPointer, glScissor, glTexSubImage1D, glLineWidth, glTexImage1D, glClear, glCopyTexSubImage1D, glPointSize and glDeleteLists

    Constant GL_INVERT

      `constant int GL.GL_INVERT`

    Description

      Used in glLogicOp and glStencilOp

    Constant GL_KEEP

      `constant int GL.GL_KEEP`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glStencilOp

    Constant GL_LARGE_SUNX

      `constant int GL.GL_LARGE_SUNX`

    Constant GL_LEFT

      `constant int GL.GL_LEFT`

    Description

      Used in glReadBuffer and glDrawBuffer

    Constant GL_LEQUAL

      `constant int GL.GL_LEQUAL`

    Description

      Used in glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_LESS

      `constant int GL.GL_LESS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev, glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_LIGHT0

      `constant int GL.GL_LIGHT0`

    Description

      Used in glGetLight and glLight

    Constant GL_LIGHT1

      `constant int GL.GL_LIGHT1`

    Constant GL_LIGHT2

      `constant int GL.GL_LIGHT2`

    Constant GL_LIGHT3

      `constant int GL.GL_LIGHT3`

    Constant GL_LIGHT4

      `constant int GL.GL_LIGHT4`

    Constant GL_LIGHT5

      `constant int GL.GL_LIGHT5`

    Constant GL_LIGHT6

      `constant int GL.GL_LIGHT6`

    Constant GL_LIGHT7

      `constant int GL.GL_LIGHT7`

    Constant GL_LIGHTING

      `constant int GL.GL_LIGHTING`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glLight

    Constant GL_LIGHTING_BIT

      `constant int GL.GL_LIGHTING_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_LIGHT_MODEL_AMBIENT

      `constant int GL.GL_LIGHT_MODEL_AMBIENT`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glLightModel

    Constant GL_LIGHT_MODEL_LOCAL_VIEWER

      `constant int GL.GL_LIGHT_MODEL_LOCAL_VIEWER`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glLightModel

    Constant GL_LIGHT_MODEL_TWO_SIDE

      `constant int GL.GL_LIGHT_MODEL_TWO_SIDE`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glLightModel

    Constant GL_LINE

      `constant int GL.GL_LINE`

    Description

      Used in glIsEnabled, glFog, glGetIntegerv, glEnd, glDrawElements, glDrawArrays, glGetLight, glDisable, glLineStipple, glEdgeFlag, glPopAttrib, glEnable, glPolygonMode, glGetTexParameter, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glFeedbackBuffer, glBegin, glLight, glTexParameter, glLineWidth, glHint, glEdgeFlagv and glEvalMesh

    Constant GL_LINEAR

      `constant int GL.GL_LINEAR`

    Description

      Used in glFog, glGetLight, glGetTexParameter, glLight and glTexParameter

    Constant GL_LINEAR_ATTENUATION

      `constant int GL.GL_LINEAR_ATTENUATION`

    Description

      Used in glGetLight and glLight

    Constant GL_LINEAR_MIPMAP_LINEAR

      `constant int GL.GL_LINEAR_MIPMAP_LINEAR`

    Description

      Used in glTexParameter

    Constant GL_LINEAR_MIPMAP_NEAREST

      `constant int GL.GL_LINEAR_MIPMAP_NEAREST`

    Description

      Used in glTexParameter

    Constant GL_LINES

      `constant int GL.GL_LINES`

    Description

      Used in glEnd, glDrawElements, glDrawArrays, glLineStipple, glBegin and glEvalMesh

    Constant GL_LINE_BIT

      `constant int GL.GL_LINE_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_LINE_LOOP

      `constant int GL.GL_LINE_LOOP`

    Description

      Used in glEnd, glDrawElements, glDrawArrays and glBegin

    Constant GL_LINE_RESET_TOKEN

      `constant int GL.GL_LINE_RESET_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_LINE_SMOOTH

      `constant int GL.GL_LINE_SMOOTH`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glLineWidth and glHint

    Constant GL_LINE_SMOOTH_HINT

      `constant int GL.GL_LINE_SMOOTH_HINT`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_LINE_STIPPLE

      `constant int GL.GL_LINE_STIPPLE`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glLineStipple, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_LINE_STIPPLE_PATTERN

      `constant int GL.GL_LINE_STIPPLE_PATTERN`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_LINE_STIPPLE_REPEAT

      `constant int GL.GL_LINE_STIPPLE_REPEAT`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_LINE_STRIP

      `constant int GL.GL_LINE_STRIP`

    Description

      Used in glEnd, glDrawElements, glDrawArrays, glBegin and glEvalMesh

    Constant GL_LINE_TOKEN

      `constant int GL.GL_LINE_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_LINE_WIDTH

      `constant int GL.GL_LINE_WIDTH`

    Description

      Used in glGetIntegerv, glPolygonMode, glGetBooleanv, glGetFloatv, glGetDoublev and glLineWidth

    Constant GL_LINE_WIDTH_GRANULARITY

      `constant int GL.GL_LINE_WIDTH_GRANULARITY`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glLineWidth

    Constant GL_LINE_WIDTH_RANGE

      `constant int GL.GL_LINE_WIDTH_RANGE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glLineWidth

    Constant GL_LIST_BASE

      `constant int GL.GL_LIST_BASE`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_LIST_BIT

      `constant int GL.GL_LIST_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_LIST_INDEX

      `constant int GL.GL_LIST_INDEX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_LIST_MODE

      `constant int GL.GL_LIST_MODE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_LOAD

      `constant int GL.GL_LOAD`

    Description

      Used in glAccum

    Constant GL_LOGIC_OP

      `constant int GL.GL_LOGIC_OP`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_LOGIC_OP_MODE

      `constant int GL.GL_LOGIC_OP_MODE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_LUMINANCE

      `constant int GL.GL_LUMINANCE`

    Description

      Used in glTexEnv, glDrawPixels, glCopyTexImage1D, glTexSubImage2D, glGetTexImage, glReadPixels, glCopyTexImage2D, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_LUMINANCE12

      `constant int GL.GL_LUMINANCE12`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE12_ALPHA12

      `constant int GL.GL_LUMINANCE12_ALPHA12`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE12_ALPHA4

      `constant int GL.GL_LUMINANCE12_ALPHA4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE16

      `constant int GL.GL_LUMINANCE16`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE16_ALPHA16

      `constant int GL.GL_LUMINANCE16_ALPHA16`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE4

      `constant int GL.GL_LUMINANCE4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE4_ALPHA4

      `constant int GL.GL_LUMINANCE4_ALPHA4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE6_ALPHA2

      `constant int GL.GL_LUMINANCE6_ALPHA2`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE8

      `constant int GL.GL_LUMINANCE8`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE8_ALPHA8

      `constant int GL.GL_LUMINANCE8_ALPHA8`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_LUMINANCE_ALPHA

      `constant int GL.GL_LUMINANCE_ALPHA`

    Description

      Used in glDrawPixels, glCopyTexImage1D, glTexSubImage2D, glGetTexImage, glReadPixels, glCopyTexImage2D, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_MAP1_COLOR_4

      `constant int GL.GL_MAP1_COLOR_4`

    Description

      Used in glIsEnabled, glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_GRID_DOMAIN

      `constant int GL.GL_MAP1_GRID_DOMAIN`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAP1_GRID_SEGMENTS

      `constant int GL.GL_MAP1_GRID_SEGMENTS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAP1_INDEX

      `constant int GL.GL_MAP1_INDEX`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_NORMAL

      `constant int GL.GL_MAP1_NORMAL`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_TEXTURE_COORD_1

      `constant int GL.GL_MAP1_TEXTURE_COORD_1`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_TEXTURE_COORD_2

      `constant int GL.GL_MAP1_TEXTURE_COORD_2`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_TEXTURE_COORD_3

      `constant int GL.GL_MAP1_TEXTURE_COORD_3`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_TEXTURE_COORD_4

      `constant int GL.GL_MAP1_TEXTURE_COORD_4`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_VERTEX_3

      `constant int GL.GL_MAP1_VERTEX_3`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP1_VERTEX_4

      `constant int GL.GL_MAP1_VERTEX_4`

    Description

      Used in glMap1, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_COLOR_4

      `constant int GL.GL_MAP2_COLOR_4`

    Description

      Used in glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_GRID_DOMAIN

      `constant int GL.GL_MAP2_GRID_DOMAIN`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAP2_GRID_SEGMENTS

      `constant int GL.GL_MAP2_GRID_SEGMENTS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAP2_INDEX

      `constant int GL.GL_MAP2_INDEX`

    Description

      Used in glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_NORMAL

      `constant int GL.GL_MAP2_NORMAL`

    Description

      Used in glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_TEXTURE_COORD_1

      `constant int GL.GL_MAP2_TEXTURE_COORD_1`

    Description

      Used in glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_TEXTURE_COORD_2

      `constant int GL.GL_MAP2_TEXTURE_COORD_2`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_TEXTURE_COORD_3

      `constant int GL.GL_MAP2_TEXTURE_COORD_3`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_TEXTURE_COORD_4

      `constant int GL.GL_MAP2_TEXTURE_COORD_4`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_VERTEX_3

      `constant int GL.GL_MAP2_VERTEX_3`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP2_VERTEX_4

      `constant int GL.GL_MAP2_VERTEX_4`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glMap2, glEnable, glGetBooleanv, glGetFloatv, glGetMap, glGetDoublev and glEvalCoord

    Constant GL_MAP_COLOR

      `constant int GL.GL_MAP_COLOR`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels and glCopyPixels

    Constant GL_MAP_STENCIL

      `constant int GL.GL_MAP_STENCIL`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels and glCopyPixels

    Constant GL_MATRIX_MODE

      `constant int GL.GL_MATRIX_MODE`

    Description

      Used in glMatrixMode, glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_MAX_3D_TEXTURE_SIZE_EXT

      `constant int GL.GL_MAX_3D_TEXTURE_SIZE_EXT`

    Constant GL_MAX_ATTRIB_STACK_DEPTH

      `constant int GL.GL_MAX_ATTRIB_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_CLIENT_ATTRIB_STACK_DEPTH

      `constant int GL.GL_MAX_CLIENT_ATTRIB_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_CLIP_PLANES

      `constant int GL.GL_MAX_CLIP_PLANES`

    Description

      Used in glGetIntegerv, glGetClipPlane, glClipPlane, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_CONVOLUTION_HEIGHT_EXT

      `constant int GL.GL_MAX_CONVOLUTION_HEIGHT_EXT`

    Constant GL_MAX_CONVOLUTION_WIDTH_EXT

      `constant int GL.GL_MAX_CONVOLUTION_WIDTH_EXT`

    Constant GL_MAX_EVAL_ORDER

      `constant int GL.GL_MAX_EVAL_ORDER`

    Description

      Used in glMap1, glGetIntegerv, glMap2, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_EXT

      `constant int GL.GL_MAX_EXT`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_LIGHTS

      `constant int GL.GL_MAX_LIGHTS`

    Description

      Used in glGetIntegerv, glGetLight, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glLight

    Constant GL_MAX_LIST_NESTING

      `constant int GL.GL_MAX_LIST_NESTING`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_MODELVIEW_STACK_DEPTH

      `constant int GL.GL_MAX_MODELVIEW_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_NAME_STACK_DEPTH

      `constant int GL.GL_MAX_NAME_STACK_DEPTH`

    Description

      Used in glPushName, glGetIntegerv, glPopName, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_PIXEL_MAP_TABLE

      `constant int GL.GL_MAX_PIXEL_MAP_TABLE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glPixelMap, glGetFloatv and glGetDoublev

    Constant GL_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT

      `constant int GL.GL_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT`

    Constant GL_MAX_PROJECTION_STACK_DEPTH

      `constant int GL.GL_MAX_PROJECTION_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_TEXTURE_SIZE

      `constant int GL.GL_MAX_TEXTURE_SIZE`

    Description

      Used in glGetTexLevelParameter, glGetIntegerv, glCopyTexSubImage2D, glCopyTexImage1D, glTexSubImage2D, glGetBooleanv, glGetTexImage, glGetFloatv, glGetDoublev, glCopyTexImage2D, glTexImage2D, glTexSubImage1D, glTexImage1D and glCopyTexSubImage1D

    Constant GL_MAX_TEXTURE_STACK_DEPTH

      `constant int GL.GL_MAX_TEXTURE_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MAX_VIEWPORT_DIMS

      `constant int GL.GL_MAX_VIEWPORT_DIMS`

    Description

      Used in glGetIntegerv, glViewport, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MINMAX_EXT

      `constant int GL.GL_MINMAX_EXT`

    Constant GL_MINMAX_FORMAT_EXT

      `constant int GL.GL_MINMAX_FORMAT_EXT`

    Constant GL_MINMAX_SINK_EXT

      `constant int GL.GL_MINMAX_SINK_EXT`

    Constant GL_MIN_EXT

      `constant int GL.GL_MIN_EXT`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MODELVIEW

      `constant int GL.GL_MODELVIEW`

    Description

      Used in glPushMatrix, glMatrixMode, glGetIntegerv, glGetBooleanv, glTranslate, glGetFloatv, glGetDoublev, glRotate, glScale and glPopMatrix

    Constant GL_MODELVIEW_MATRIX

      `constant int GL.GL_MODELVIEW_MATRIX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MODELVIEW_STACK_DEPTH

      `constant int GL.GL_MODELVIEW_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_MODULATE

      `constant int GL.GL_MODULATE`

    Description

      Used in glTexEnv and glGetTexEnv

    Constant GL_MULT

      `constant int GL.GL_MULT`

    Description

      Used in glAccum

    Constant GL_N3F_V3F

      `constant int GL.GL_N3F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_NAME_STACK_DEPTH

      `constant int GL.GL_NAME_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_NAND

      `constant int GL.GL_NAND`

    Description

      Used in glLogicOp

    Constant GL_NEAREST

      `constant int GL.GL_NEAREST`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_NEAREST_MIPMAP_LINEAR

      `constant int GL.GL_NEAREST_MIPMAP_LINEAR`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_NEAREST_MIPMAP_NEAREST

      `constant int GL.GL_NEAREST_MIPMAP_NEAREST`

    Description

      Used in glTexParameter

    Constant GL_NEVER

      `constant int GL.GL_NEVER`

    Description

      Used in glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_NICEST

      `constant int GL.GL_NICEST`

    Description

      Used in glHint

    Constant GL_NONE

      `constant int GL.GL_NONE`

    Description

      Used in glDrawBuffer

    Constant GL_NOOP

      `constant int GL.GL_NOOP`

    Description

      Used in glLogicOp

    Constant GL_NOR

      `constant int GL.GL_NOR`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glNormalPointer, glPopAttrib, glEnable, glEnableClientState, glGetPointerv, glLogicOp, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glNormal and glDisableClientState

    Constant GL_NORMALIZE

      `constant int GL.GL_NORMALIZE`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glNormal

    Constant GL_NORMAL_ARRAY

      `constant int GL.GL_NORMAL_ARRAY`

    Description

      Used in glIsEnabled, glGetIntegerv, glNormalPointer, glEnableClientState, glGetPointerv, glGetBooleanv, glGetFloatv, glGetDoublev and glDisableClientState

    Constant GL_NORMAL_ARRAY_POINTER

      `constant int GL.GL_NORMAL_ARRAY_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_NORMAL_ARRAY_STRIDE

      `constant int GL.GL_NORMAL_ARRAY_STRIDE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_NORMAL_ARRAY_TYPE

      `constant int GL.GL_NORMAL_ARRAY_TYPE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_NOTEQUAL

      `constant int GL.GL_NOTEQUAL`

    Description

      Used in glAlphaFunc, glDepthFunc and glStencilFunc

    Constant GL_NO_ERROR

      `constant int GL.GL_NO_ERROR`

    Description

      Used in glGetError

    Constant GL_OBJECT_LINEAR

      `constant int GL.GL_OBJECT_LINEAR`

    Description

      Used in glTexGen

    Constant GL_OBJECT_PLANE

      `constant int GL.GL_OBJECT_PLANE`

    Description

      Used in glGetTexGen and glTexGen

    Constant GL_OCCLUSION_RESULT_HP

      `constant int GL.GL_OCCLUSION_RESULT_HP`

    Constant GL_OCCLUSION_TEST_HP

      `constant int GL.GL_OCCLUSION_TEST_HP`

    Constant GL_ONE

      `constant int GL.GL_ONE`

    Description

      Used in glGetIntegerv, glBlendFunc, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_ONE_MINUS_CONSTANT_ALPHA_EXT

      `constant int GL.GL_ONE_MINUS_CONSTANT_ALPHA_EXT`

    Constant GL_ONE_MINUS_CONSTANT_COLOR_EXT

      `constant int GL.GL_ONE_MINUS_CONSTANT_COLOR_EXT`

    Constant GL_ONE_MINUS_DST_ALPHA

      `constant int GL.GL_ONE_MINUS_DST_ALPHA`

    Description

      Used in glBlendFunc

    Constant GL_ONE_MINUS_DST_COLOR

      `constant int GL.GL_ONE_MINUS_DST_COLOR`

    Description

      Used in glBlendFunc

    Constant GL_ONE_MINUS_SRC_ALPHA

      `constant int GL.GL_ONE_MINUS_SRC_ALPHA`

    Description

      Used in glBlendFunc

    Constant GL_ONE_MINUS_SRC_COLOR

      `constant int GL.GL_ONE_MINUS_SRC_COLOR`

    Description

      Used in glBlendFunc

    Constant GL_OR

      `constant int GL.GL_OR`

    Description

      Used in glLogicOp and glGetMap

    Constant GL_ORDER

      `constant int GL.GL_ORDER`

    Description

      Used in glGetMap

    Constant GL_OR_INVERTED

      `constant int GL.GL_OR_INVERTED`

    Description

      Used in glLogicOp

    Constant GL_OR_REVERSE

      `constant int GL.GL_OR_REVERSE`

    Description

      Used in glLogicOp

    Constant GL_OUT_OF_MEMORY

      `constant int GL.GL_OUT_OF_MEMORY`

    Description

      Used in glGetError, glNewList and glEndList

    Constant GL_PACK_ALIGNMENT

      `constant int GL.GL_PACK_ALIGNMENT`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetTexImage, glGetFloatv and glGetDoublev

    Constant GL_PACK_IMAGE_HEIGHT_EXT

      `constant int GL.GL_PACK_IMAGE_HEIGHT_EXT`

    Constant GL_PACK_LSB_FIRST

      `constant int GL.GL_PACK_LSB_FIRST`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glReadPixels

    Constant GL_PACK_ROW_LENGTH

      `constant int GL.GL_PACK_ROW_LENGTH`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PACK_SKIP_IMAGES_EXT

      `constant int GL.GL_PACK_SKIP_IMAGES_EXT`

    Constant GL_PACK_SKIP_PIXELS

      `constant int GL.GL_PACK_SKIP_PIXELS`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PACK_SKIP_ROWS

      `constant int GL.GL_PACK_SKIP_ROWS`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PACK_SWAP_BYTES

      `constant int GL.GL_PACK_SWAP_BYTES`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glReadPixels

    Constant GL_PASS_THROUGH_TOKEN

      `constant int GL.GL_PASS_THROUGH_TOKEN`

    Description

      Used in glPassThrough and glFeedbackBuffer

    Constant GL_PERSPECTIVE_CORRECTION_HINT

      `constant int GL.GL_PERSPECTIVE_CORRECTION_HINT`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_PIXEL_CUBIC_WEIGHT_EXT

      `constant int GL.GL_PIXEL_CUBIC_WEIGHT_EXT`

    Constant GL_PIXEL_MAG_FILTER_EXT

      `constant int GL.GL_PIXEL_MAG_FILTER_EXT`

    Constant GL_PIXEL_MAP_A_TO_A

      `constant int GL.GL_PIXEL_MAP_A_TO_A`

    Description

      Used in glGetIntegerv, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_A_TO_A_SIZE

      `constant int GL.GL_PIXEL_MAP_A_TO_A_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_B_TO_B

      `constant int GL.GL_PIXEL_MAP_B_TO_B`

    Description

      Used in glGetIntegerv, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_B_TO_B_SIZE

      `constant int GL.GL_PIXEL_MAP_B_TO_B_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_G_TO_G

      `constant int GL.GL_PIXEL_MAP_G_TO_G`

    Description

      Used in glGetIntegerv, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_G_TO_G_SIZE

      `constant int GL.GL_PIXEL_MAP_G_TO_G_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_I_TO_A

      `constant int GL.GL_PIXEL_MAP_I_TO_A`

    Description

      Used in glGetIntegerv, glDrawPixels, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D and glTexImage1D

    Constant GL_PIXEL_MAP_I_TO_A_SIZE

      `constant int GL.GL_PIXEL_MAP_I_TO_A_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_I_TO_B

      `constant int GL.GL_PIXEL_MAP_I_TO_B`

    Description

      Used in glGetIntegerv, glDrawPixels, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D and glTexImage1D

    Constant GL_PIXEL_MAP_I_TO_B_SIZE

      `constant int GL.GL_PIXEL_MAP_I_TO_B_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_I_TO_G

      `constant int GL.GL_PIXEL_MAP_I_TO_G`

    Description

      Used in glGetIntegerv, glDrawPixels, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D and glTexImage1D

    Constant GL_PIXEL_MAP_I_TO_G_SIZE

      `constant int GL.GL_PIXEL_MAP_I_TO_G_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_I_TO_I

      `constant int GL.GL_PIXEL_MAP_I_TO_I`

    Description

      Used in glGetIntegerv, glDrawPixels, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv, glGetDoublev, glReadPixels and glCopyPixels

    Constant GL_PIXEL_MAP_I_TO_I_SIZE

      `constant int GL.GL_PIXEL_MAP_I_TO_I_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_I_TO_R

      `constant int GL.GL_PIXEL_MAP_I_TO_R`

    Description

      Used in glGetIntegerv, glDrawPixels, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D and glTexImage1D

    Constant GL_PIXEL_MAP_I_TO_R_SIZE

      `constant int GL.GL_PIXEL_MAP_I_TO_R_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_R_TO_R

      `constant int GL.GL_PIXEL_MAP_R_TO_R`

    Description

      Used in glGetIntegerv, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_R_TO_R_SIZE

      `constant int GL.GL_PIXEL_MAP_R_TO_R_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MAP_S_TO_S

      `constant int GL.GL_PIXEL_MAP_S_TO_S`

    Description

      Used in glGetIntegerv, glDrawPixels, glGetPixelMap, glPixelTransfer, glGetBooleanv, glPixelMap, glGetFloatv, glGetDoublev, glReadPixels and glCopyPixels

    Constant GL_PIXEL_MAP_S_TO_S_SIZE

      `constant int GL.GL_PIXEL_MAP_S_TO_S_SIZE`

    Description

      Used in glGetIntegerv, glPixelTransfer, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PIXEL_MIN_FILTER_EXT

      `constant int GL.GL_PIXEL_MIN_FILTER_EXT`

    Constant GL_PIXEL_MODE_BIT

      `constant int GL.GL_PIXEL_MODE_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_PIXEL_TRANSFORM_2D_EXT

      `constant int GL.GL_PIXEL_TRANSFORM_2D_EXT`

    Constant GL_PIXEL_TRANSFORM_2D_MATRIX_EXT

      `constant int GL.GL_PIXEL_TRANSFORM_2D_MATRIX_EXT`

    Constant GL_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT

      `constant int GL.GL_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT`

    Constant GL_PIXEL_TRANSFORM_COLOR_TABLE_EXT

      `constant int GL.GL_PIXEL_TRANSFORM_COLOR_TABLE_EXT`

    Constant GL_POINT

      `constant int GL.GL_POINT`

    Description

      Used in glIsEnabled, glGetIntegerv, glEnd, glDrawElements, glDrawArrays, glDisable, glEdgeFlag, glPopAttrib, glEnable, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glFeedbackBuffer, glBegin, glHint, glEdgeFlagv, glPointSize and glEvalMesh

    Constant GL_POINTS

      `constant int GL.GL_POINTS`

    Description

      Used in glEnd, glDrawElements, glDrawArrays, glBegin and glEvalMesh

    Constant GL_POINT_BIT

      `constant int GL.GL_POINT_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_POINT_SIZE

      `constant int GL.GL_POINT_SIZE`

    Description

      Used in glGetIntegerv, glPolygonMode, glGetBooleanv, glGetFloatv, glGetDoublev and glPointSize

    Constant GL_POINT_SIZE_GRANULARITY

      `constant int GL.GL_POINT_SIZE_GRANULARITY`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glPointSize

    Constant GL_POINT_SIZE_RANGE

      `constant int GL.GL_POINT_SIZE_RANGE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glPointSize

    Constant GL_POINT_SMOOTH

      `constant int GL.GL_POINT_SMOOTH`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glHint and glPointSize

    Constant GL_POINT_SMOOTH_HINT

      `constant int GL.GL_POINT_SMOOTH_HINT`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_POINT_TOKEN

      `constant int GL.GL_POINT_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_POLYGON

      `constant int GL.GL_POLYGON`

    Description

      Used in glPolygonOffset, glIsEnabled, glGetIntegerv, glEnd, glDrawElements, glDrawArrays, glDisable, glEdgeFlag, glPopAttrib, glEnable, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glRect, glFeedbackBuffer, glBegin, glHint, glEdgeFlagv and glPolygonStipple

    Constant GL_POLYGON_BIT

      `constant int GL.GL_POLYGON_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_POLYGON_MODE

      `constant int GL.GL_POLYGON_MODE`

    Description

      Used in glGetIntegerv, glEdgeFlag, glPopAttrib, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glEdgeFlagv

    Constant GL_POLYGON_OFFSET_FACTOR

      `constant int GL.GL_POLYGON_OFFSET_FACTOR`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_POLYGON_OFFSET_FILL

      `constant int GL.GL_POLYGON_OFFSET_FILL`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_POLYGON_OFFSET_LINE

      `constant int GL.GL_POLYGON_OFFSET_LINE`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_POLYGON_OFFSET_POINT

      `constant int GL.GL_POLYGON_OFFSET_POINT`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_POLYGON_OFFSET_UNITS

      `constant int GL.GL_POLYGON_OFFSET_UNITS`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_POLYGON_SMOOTH

      `constant int GL.GL_POLYGON_SMOOTH`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_POLYGON_SMOOTH_HINT

      `constant int GL.GL_POLYGON_SMOOTH_HINT`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glHint

    Constant GL_POLYGON_STIPPLE

      `constant int GL.GL_POLYGON_STIPPLE`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glPolygonMode, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glPolygonStipple

    Constant GL_POLYGON_STIPPLE_BIT

      `constant int GL.GL_POLYGON_STIPPLE_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_POLYGON_TOKEN

      `constant int GL.GL_POLYGON_TOKEN`

    Description

      Used in glFeedbackBuffer

    Constant GL_POSITION

      `constant int GL.GL_POSITION`

    Description

      Used in glGetLight and glLight

    Constant GL_POST_CONVOLUTION_ALPHA_BIAS_EXT

      `constant int GL.GL_POST_CONVOLUTION_ALPHA_BIAS_EXT`

    Constant GL_POST_CONVOLUTION_ALPHA_SCALE_EXT

      `constant int GL.GL_POST_CONVOLUTION_ALPHA_SCALE_EXT`

    Constant GL_POST_CONVOLUTION_BLUE_BIAS_EXT

      `constant int GL.GL_POST_CONVOLUTION_BLUE_BIAS_EXT`

    Constant GL_POST_CONVOLUTION_BLUE_SCALE_EXT

      `constant int GL.GL_POST_CONVOLUTION_BLUE_SCALE_EXT`

    Constant GL_POST_CONVOLUTION_COLOR_TABLE_SGI

      `constant int GL.GL_POST_CONVOLUTION_COLOR_TABLE_SGI`

    Constant GL_POST_CONVOLUTION_GREEN_BIAS_EXT

      `constant int GL.GL_POST_CONVOLUTION_GREEN_BIAS_EXT`

    Constant GL_POST_CONVOLUTION_GREEN_SCALE_EXT

      `constant int GL.GL_POST_CONVOLUTION_GREEN_SCALE_EXT`

    Constant GL_POST_CONVOLUTION_RED_BIAS_EXT

      `constant int GL.GL_POST_CONVOLUTION_RED_BIAS_EXT`

    Constant GL_POST_CONVOLUTION_RED_SCALE_EXT

      `constant int GL.GL_POST_CONVOLUTION_RED_SCALE_EXT`

    Constant GL_PROJECTION

      `constant int GL.GL_PROJECTION`

    Description

      Used in glPushMatrix, glMatrixMode, glFrustum, glGetIntegerv, glGetBooleanv, glTranslate, glGetFloatv, glGetDoublev, glRotate, glScale, glOrtho and glPopMatrix

    Constant GL_PROJECTION_MATRIX

      `constant int GL.GL_PROJECTION_MATRIX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PROJECTION_STACK_DEPTH

      `constant int GL.GL_PROJECTION_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_PROXY_COLOR_TABLE_SGI

      `constant int GL.GL_PROXY_COLOR_TABLE_SGI`

    Constant GL_PROXY_HISTOGRAM_EXT

      `constant int GL.GL_PROXY_HISTOGRAM_EXT`

    Constant GL_PROXY_PIXEL_TRANSFORM_COLOR_TABLE_EXT

      `constant int GL.GL_PROXY_PIXEL_TRANSFORM_COLOR_TABLE_EXT`

    Constant GL_PROXY_POST_CONVOLUTION_COLOR_TABLE_SGI

      `constant int GL.GL_PROXY_POST_CONVOLUTION_COLOR_TABLE_SGI`

    Constant GL_PROXY_TEXTURE_1D

      `constant int GL.GL_PROXY_TEXTURE_1D`

    Description

      Used in glGetTexLevelParameter, glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev, glNewList, glEndList and glTexImage1D

    Constant GL_PROXY_TEXTURE_2D

      `constant int GL.GL_PROXY_TEXTURE_2D`

    Description

      Used in glGetTexLevelParameter, glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev, glNewList, glTexImage2D and glEndList

    Constant GL_PROXY_TEXTURE_3D_EXT

      `constant int GL.GL_PROXY_TEXTURE_3D_EXT`

    Constant GL_PROXY_TEXTURE_COLOR_TABLE_SGI

      `constant int GL.GL_PROXY_TEXTURE_COLOR_TABLE_SGI`

    Constant GL_Q

      `constant int GL.GL_Q`

    Description

      Used in glGetTexGen, glEnd, glDrawElements, glDrawArrays, glGetLight, glBegin, glLight, glEvalMesh and glTexGen

    Constant GL_QUADRATIC_ATTENUATION

      `constant int GL.GL_QUADRATIC_ATTENUATION`

    Description

      Used in glGetLight and glLight

    Constant GL_QUADS

      `constant int GL.GL_QUADS`

    Description

      Used in glEnd, glDrawElements, glDrawArrays and glBegin

    Constant GL_QUAD_STRIP

      `constant int GL.GL_QUAD_STRIP`

    Description

      Used in glEnd, glDrawElements, glDrawArrays, glBegin and glEvalMesh

    Constant GL_R

      `constant int GL.GL_R`

    Description

      Used in glPixelStore, glTexEnv, glRenderMode, glGetTexGen, glGetIntegerv, glCopyTexSubImage2D, glDrawPixels, glCopyTexImage1D, glTexSubImage2D, glPopAttrib, glPixelTransfer, glGetTexParameter, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glAccum, glReadBuffer, glGetDoublev, glReadPixels, glCopyTexImage2D, glTexImage2D, glStencilOp, glGetString, glTexParameter, glTexSubImage1D, glDrawBuffer, glTexImage1D, glCopyTexSubImage1D and glTexGen

    Constant GL_R3_G3_B2

      `constant int GL.GL_R3_G3_B2`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_READ_BUFFER

      `constant int GL.GL_READ_BUFFER`

    Description

      Used in glGetIntegerv, glCopyTexSubImage2D, glCopyTexImage1D, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glCopyTexImage2D and glCopyTexSubImage1D

    Constant GL_RED

      `constant int GL.GL_RED`

    Description

      Used in glGetIntegerv, glDrawPixels, glTexSubImage2D, glPopAttrib, glPixelTransfer, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_REDUCE_EXT

      `constant int GL.GL_REDUCE_EXT`

    Constant GL_RED_BIAS

      `constant int GL.GL_RED_BIAS`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_RED_BITS

      `constant int GL.GL_RED_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_RED_SCALE

      `constant int GL.GL_RED_SCALE`

    Description

      Used in glGetIntegerv, glPopAttrib, glPixelTransfer, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_RENDER

      `constant int GL.GL_RENDER`

    Description

      Used in glRenderMode, glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glGetString

    Constant GL_RENDERER

      `constant int GL.GL_RENDERER`

    Description

      Used in glGetString

    Constant GL_RENDER_MODE

      `constant int GL.GL_RENDER_MODE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_REPEAT

      `constant int GL.GL_REPEAT`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_REPLACE

      `constant int GL.GL_REPLACE`

    Description

      Used in glTexEnv and glStencilOp

    Constant GL_REPLICATE_BORDER_HP

      `constant int GL.GL_REPLICATE_BORDER_HP`

    Constant GL_RESCALE_NORMAL_EXT

      `constant int GL.GL_RESCALE_NORMAL_EXT`

    Constant GL_RETURN

      `constant int GL.GL_RETURN`

    Description

      Used in glAccum

    Constant GL_RGB

      `constant int GL.GL_RGB`

    Description

      Used in glPixelStore, glTexEnv, glGetIntegerv, glDrawPixels, glCopyTexImage1D, glTexSubImage2D, glGetBooleanv, glGetTexImage, glGetFloatv, glGetDoublev, glReadPixels, glCopyTexImage2D, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_RGB10

      `constant int GL.GL_RGB10`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB10_A2

      `constant int GL.GL_RGB10_A2`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB12

      `constant int GL.GL_RGB12`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB16

      `constant int GL.GL_RGB16`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB4

      `constant int GL.GL_RGB4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB5

      `constant int GL.GL_RGB5`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB5_A1

      `constant int GL.GL_RGB5_A1`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGB8

      `constant int GL.GL_RGB8`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGBA

      `constant int GL.GL_RGBA`

    Description

      Used in glTexEnv, glGetIntegerv, glDrawPixels, glCopyTexImage1D, glTexSubImage2D, glGetBooleanv, glGetTexImage, glGetFloatv, glGetDoublev, glReadPixels, glCopyTexImage2D, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_RGBA12

      `constant int GL.GL_RGBA12`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGBA16

      `constant int GL.GL_RGBA16`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGBA2

      `constant int GL.GL_RGBA2`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGBA4

      `constant int GL.GL_RGBA4`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGBA8

      `constant int GL.GL_RGBA8`

    Description

      Used in glCopyTexImage1D, glCopyTexImage2D, glTexImage2D and glTexImage1D

    Constant GL_RGBA_MODE

      `constant int GL.GL_RGBA_MODE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_RIGHT

      `constant int GL.GL_RIGHT`

    Description

      Used in glReadBuffer and glDrawBuffer

    Constant GL_S

      `constant int GL.GL_S`

    Description

      Used in glPushMatrix, glLoadName, glIsEnabled, glPushName, glRenderMode, glGetTexGen, glGetIntegerv, glColorMaterial, glGetError, glDrawPixels, glBlendFunc, glVertexPointer, glSelectBuffer, glGetLight, glInitNames, glDisable, glColorPointer, glTexSubImage2D, glNormalPointer, glPopAttrib, glEnable, glGetPointerv, glPopName, glLogicOp, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glMaterial, glGetDoublev, glCallLists, glShadeModel, glReadPixels, glTexImage2D, glLight, glPopClientAttrib, glStencilOp, glTexCoordPointer, glCopyPixels, glIndexPointer, glPushClientAttrib, glScissor, glTexSubImage1D, glTexImage1D, glStencilFunc, glGetMaterial, glClear, glPopMatrix and glTexGen

    Constant GL_SCISSOR_BIT

      `constant int GL.GL_SCISSOR_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_SCISSOR_BOX

      `constant int GL.GL_SCISSOR_BOX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_SCISSOR_TEST

      `constant int GL.GL_SCISSOR_TEST`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glScissor

    Constant GL_SELECT

      `constant int GL.GL_SELECT`

    Description

      Used in glLoadName, glPushName, glRenderMode, glSelectBuffer, glInitNames, glGetPointerv and glPopName

    Constant GL_SELECTION_BUFFER_POINTER

      `constant int GL.GL_SELECTION_BUFFER_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_SELECTION_BUFFER_SIZE

      `constant int GL.GL_SELECTION_BUFFER_SIZE`

    Constant GL_SEPARABLE_2D_EXT

      `constant int GL.GL_SEPARABLE_2D_EXT`

    Constant GL_SET

      `constant int GL.GL_SET`

    Description

      Used in glLogicOp

    Constant GL_SGI_color_table

      `constant int GL.GL_SGI_color_table`

    Constant GL_SGI_texture_color_table

      `constant int GL.GL_SGI_texture_color_table`

    Constant GL_SHADE_MODEL

      `constant int GL.GL_SHADE_MODEL`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_SHININESS

      `constant int GL.GL_SHININESS`

    Description

      Used in glMaterial and glGetMaterial

    Constant GL_SHORT

      `constant int GL.GL_SHORT`

    Description

      Used in glDrawPixels, glVertexPointer, glColorPointer, glTexSubImage2D, glNormalPointer, glGetTexImage, glCallLists, glReadPixels, glTexImage2D, glTexCoordPointer, glIndexPointer, glTexSubImage1D and glTexImage1D

    Constant GL_SMOOTH

      `constant int GL.GL_SMOOTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glShadeModel

    Constant GL_SPECULAR

      `constant int GL.GL_SPECULAR`

    Description

      Used in glColorMaterial, glGetLight, glMaterial, glLight and glGetMaterial

    Constant GL_SPHERE_MAP

      `constant int GL.GL_SPHERE_MAP`

    Description

      Used in glTexGen

    Constant GL_SPOT_CUTOFF

      `constant int GL.GL_SPOT_CUTOFF`

    Description

      Used in glGetLight and glLight

    Constant GL_SPOT_DIRECTION

      `constant int GL.GL_SPOT_DIRECTION`

    Description

      Used in glGetLight and glLight

    Constant GL_SPOT_EXPONENT

      `constant int GL.GL_SPOT_EXPONENT`

    Description

      Used in glGetLight and glLight

    Constant GL_SRC_ALPHA

      `constant int GL.GL_SRC_ALPHA`

    Description

      Used in glBlendFunc

    Constant GL_SRC_ALPHA_SATURATE

      `constant int GL.GL_SRC_ALPHA_SATURATE`

    Description

      Used in glBlendFunc

    Constant GL_SRC_COLOR

      `constant int GL.GL_SRC_COLOR`

    Description

      Used in glBlendFunc

    Constant GL_STACK_OVERFLOW

      `constant int GL.GL_STACK_OVERFLOW`

    Description

      Used in glPushMatrix, glPushName, glGetError, glPopAttrib, glPopName, glPushAttrib, glPopClientAttrib, glPushClientAttrib and glPopMatrix

    Constant GL_STACK_UNDERFLOW

      `constant int GL.GL_STACK_UNDERFLOW`

    Description

      Used in glPushMatrix, glPushName, glGetError, glPopAttrib, glPopName, glPushAttrib, glPopClientAttrib, glPushClientAttrib and glPopMatrix

    Constant GL_STENCIL

      `constant int GL.GL_STENCIL`

    Description

      Used in glIsEnabled, glGetIntegerv, glDrawPixels, glDisable, glPopAttrib, glEnable, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glReadPixels, glTexImage2D, glStencilOp, glCopyPixels, glTexImage1D, glStencilFunc and glClear

    Constant GL_STENCIL_BITS

      `constant int GL.GL_STENCIL_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glStencilOp

    Constant GL_STENCIL_BUFFER_BIT

      `constant int GL.GL_STENCIL_BUFFER_BIT`

    Description

      Used in glPopAttrib, glPushAttrib and glClear

    Constant GL_STENCIL_CLEAR_VALUE

      `constant int GL.GL_STENCIL_CLEAR_VALUE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_FAIL

      `constant int GL.GL_STENCIL_FAIL`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_FUNC

      `constant int GL.GL_STENCIL_FUNC`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_INDEX

      `constant int GL.GL_STENCIL_INDEX`

    Description

      Used in glDrawPixels, glGetTexImage, glReadPixels, glTexImage2D and glTexImage1D

    Constant GL_STENCIL_PASS_DEPTH_FAIL

      `constant int GL.GL_STENCIL_PASS_DEPTH_FAIL`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_PASS_DEPTH_PASS

      `constant int GL.GL_STENCIL_PASS_DEPTH_PASS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_REF

      `constant int GL.GL_STENCIL_REF`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_TEST

      `constant int GL.GL_STENCIL_TEST`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glPopAttrib, glEnable, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev, glStencilOp and glStencilFunc

    Constant GL_STENCIL_VALUE_MASK

      `constant int GL.GL_STENCIL_VALUE_MASK`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STENCIL_WRITEMASK

      `constant int GL.GL_STENCIL_WRITEMASK`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_STEREO

      `constant int GL.GL_STEREO`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_SUBPIXEL_BITS

      `constant int GL.GL_SUBPIXEL_BITS`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_SUNX_geometry_compression

      `constant int GL.GL_SUNX_geometry_compression`

    Constant GL_SUNX_surface_hint

      `constant int GL.GL_SUNX_surface_hint`

    Constant GL_SUN_convolution_border_modes

      `constant int GL.GL_SUN_convolution_border_modes`

    Constant GL_SUN_multi_draw_arrays

      `constant int GL.GL_SUN_multi_draw_arrays`

    Constant GL_SURFACE_SIZE_HINT_SUNX

      `constant int GL.GL_SURFACE_SIZE_HINT_SUNX`

    Constant GL_T

      `constant int GL.GL_T`

    Description

      Used in glPushMatrix, glMatrixMode, glIsEnabled, glGetTexLevelParameter, glTexEnv, glIsList, glAreTexturesResident, glGetTexGen, glGetIntegerv, glEnd, glIsTexture, glDrawElements, glDrawArrays, glCopyTexSubImage2D, glBindTexture, glDisable, glCopyTexImage1D, glTexSubImage2D, glEdgeFlag, glPopAttrib, glEnable, glColorMask, glEnableClientState, glGetPointerv, glGetTexParameter, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glInterleavedArrays, glReadPixels, glCopyTexImage2D, glTexImage2D, glGetTexEnv, glBegin, glTexCoordPointer, glTexParameter, glDisableClientState, glTexSubImage1D, glEdgeFlagv, glTexImage1D, glCopyTexSubImage1D, glPopMatrix and glTexGen

    Constant GL_T2F_C3F_V3F

      `constant int GL.GL_T2F_C3F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_T2F_C4F_N3F_V3F

      `constant int GL.GL_T2F_C4F_N3F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_T2F_C4UB_V3F

      `constant int GL.GL_T2F_C4UB_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_T2F_N3F_V3F

      `constant int GL.GL_T2F_N3F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_T2F_V3F

      `constant int GL.GL_T2F_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_T4F_C4F_N3F_V4F

      `constant int GL.GL_T4F_C4F_N3F_V4F`

    Description

      Used in glInterleavedArrays

    Constant GL_T4F_V4F

      `constant int GL.GL_T4F_V4F`

    Description

      Used in glInterleavedArrays

    Constant GL_TABLE_TOO_LARGE_EXT

      `constant int GL.GL_TABLE_TOO_LARGE_EXT`

    Constant GL_TEXTURE

      `constant int GL.GL_TEXTURE`

    Description

      Used in glPushMatrix, glMatrixMode, glIsEnabled, glGetTexLevelParameter, glTexEnv, glAreTexturesResident, glGetTexGen, glGetIntegerv, glCopyTexSubImage2D, glBindTexture, glDisable, glCopyTexImage1D, glTexSubImage2D, glPopAttrib, glEnable, glEnableClientState, glGetPointerv, glGetTexParameter, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glCopyTexImage2D, glTexImage2D, glGetTexEnv, glTexCoordPointer, glTexParameter, glDisableClientState, glTexSubImage1D, glTexImage1D, glCopyTexSubImage1D, glPopMatrix and glTexGen

    Constant GL_TEXTURE_1D

      `constant int GL.GL_TEXTURE_1D`

    Description

      Used in glIsEnabled, glGetTexLevelParameter, glGetIntegerv, glBindTexture, glDisable, glCopyTexImage1D, glPopAttrib, glEnable, glGetTexParameter, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glTexParameter, glTexSubImage1D, glTexImage1D and glCopyTexSubImage1D

    Constant GL_TEXTURE_2D

      `constant int GL.GL_TEXTURE_2D`

    Description

      Used in glIsEnabled, glGetTexLevelParameter, glGetIntegerv, glCopyTexSubImage2D, glBindTexture, glDisable, glTexSubImage2D, glPopAttrib, glEnable, glGetTexParameter, glGetBooleanv, glGetTexImage, glPushAttrib, glGetFloatv, glGetDoublev, glCopyTexImage2D, glTexImage2D and glTexParameter

    Constant GL_TEXTURE_3D_EXT

      `constant int GL.GL_TEXTURE_3D_EXT`

    Constant GL_TEXTURE_ALPHA_SIZE

      `constant int GL.GL_TEXTURE_ALPHA_SIZE`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_BINDING_1D

      `constant int GL.GL_TEXTURE_BINDING_1D`

    Constant GL_TEXTURE_BINDING_2D

      `constant int GL.GL_TEXTURE_BINDING_2D`

    Constant GL_TEXTURE_BIT

      `constant int GL.GL_TEXTURE_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_TEXTURE_BLUE_SIZE

      `constant int GL.GL_TEXTURE_BLUE_SIZE`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_BORDER

      `constant int GL.GL_TEXTURE_BORDER`

    Description

      Used in glGetTexLevelParameter, glCopyTexSubImage2D, glGetTexParameter, glTexParameter, glTexSubImage1D and glCopyTexSubImage1D

    Constant GL_TEXTURE_BORDER_COLOR

      `constant int GL.GL_TEXTURE_BORDER_COLOR`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_TEXTURE_COLOR_TABLE_SGI

      `constant int GL.GL_TEXTURE_COLOR_TABLE_SGI`

    Constant GL_TEXTURE_COMPONENTS

      `constant int GL.GL_TEXTURE_COMPONENTS`

    Constant GL_TEXTURE_COORD_ARRAY

      `constant int GL.GL_TEXTURE_COORD_ARRAY`

    Description

      Used in glIsEnabled, glGetIntegerv, glEnableClientState, glGetPointerv, glGetBooleanv, glGetFloatv, glGetDoublev, glTexCoordPointer and glDisableClientState

    Constant GL_TEXTURE_COORD_ARRAY_POINTER

      `constant int GL.GL_TEXTURE_COORD_ARRAY_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_TEXTURE_COORD_ARRAY_SIZE

      `constant int GL.GL_TEXTURE_COORD_ARRAY_SIZE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_TEXTURE_COORD_ARRAY_STRIDE

      `constant int GL.GL_TEXTURE_COORD_ARRAY_STRIDE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_TEXTURE_COORD_ARRAY_TYPE

      `constant int GL.GL_TEXTURE_COORD_ARRAY_TYPE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_TEXTURE_DEPTH_EXT

      `constant int GL.GL_TEXTURE_DEPTH_EXT`

    Constant GL_TEXTURE_ENV

      `constant int GL.GL_TEXTURE_ENV`

    Description

      Used in glTexEnv and glGetTexEnv

    Constant GL_TEXTURE_ENV_COLOR

      `constant int GL.GL_TEXTURE_ENV_COLOR`

    Description

      Used in glTexEnv and glGetTexEnv

    Constant GL_TEXTURE_ENV_MODE

      `constant int GL.GL_TEXTURE_ENV_MODE`

    Description

      Used in glTexEnv and glGetTexEnv

    Constant GL_TEXTURE_GEN_MODE

      `constant int GL.GL_TEXTURE_GEN_MODE`

    Description

      Used in glGetTexGen, glPopAttrib, glPushAttrib and glTexGen

    Constant GL_TEXTURE_GEN_Q

      `constant int GL.GL_TEXTURE_GEN_Q`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetDoublev and glTexGen

    Constant GL_TEXTURE_GEN_R

      `constant int GL.GL_TEXTURE_GEN_R`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetDoublev and glTexGen

    Constant GL_TEXTURE_GEN_S

      `constant int GL.GL_TEXTURE_GEN_S`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetDoublev and glTexGen

    Constant GL_TEXTURE_GEN_T

      `constant int GL.GL_TEXTURE_GEN_T`

    Description

      Used in glIsEnabled, glGetIntegerv, glDisable, glEnable, glGetBooleanv, glGetFloatv, glGetDoublev and glTexGen

    Constant GL_TEXTURE_GREEN_SIZE

      `constant int GL.GL_TEXTURE_GREEN_SIZE`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_HEIGHT

      `constant int GL.GL_TEXTURE_HEIGHT`

    Description

      Used in glGetTexLevelParameter, glCopyTexSubImage2D and glTexSubImage2D

    Constant GL_TEXTURE_INTENSITY_SIZE

      `constant int GL.GL_TEXTURE_INTENSITY_SIZE`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_INTERNAL_FORMAT

      `constant int GL.GL_TEXTURE_INTERNAL_FORMAT`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_LUMINANCE_SIZE

      `constant int GL.GL_TEXTURE_LUMINANCE_SIZE`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_MAG_FILTER

      `constant int GL.GL_TEXTURE_MAG_FILTER`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_TEXTURE_MATRIX

      `constant int GL.GL_TEXTURE_MATRIX`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_TEXTURE_MIN_FILTER

      `constant int GL.GL_TEXTURE_MIN_FILTER`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_TEXTURE_PRIORITY

      `constant int GL.GL_TEXTURE_PRIORITY`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_TEXTURE_RED_SIZE

      `constant int GL.GL_TEXTURE_RED_SIZE`

    Description

      Used in glGetTexLevelParameter

    Constant GL_TEXTURE_RESIDENT

      `constant int GL.GL_TEXTURE_RESIDENT`

    Description

      Used in glAreTexturesResident and glGetTexParameter

    Constant GL_TEXTURE_STACK_DEPTH

      `constant int GL.GL_TEXTURE_STACK_DEPTH`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_TEXTURE_WIDTH

      `constant int GL.GL_TEXTURE_WIDTH`

    Description

      Used in glGetTexLevelParameter, glCopyTexSubImage2D, glTexSubImage2D, glTexSubImage1D and glCopyTexSubImage1D

    Constant GL_TEXTURE_WRAP_R_EXT

      `constant int GL.GL_TEXTURE_WRAP_R_EXT`

    Constant GL_TEXTURE_WRAP_S

      `constant int GL.GL_TEXTURE_WRAP_S`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_TEXTURE_WRAP_T

      `constant int GL.GL_TEXTURE_WRAP_T`

    Description

      Used in glGetTexParameter and glTexParameter

    Constant GL_TRANSFORM_BIT

      `constant int GL.GL_TRANSFORM_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_TRIANGLES

      `constant int GL.GL_TRIANGLES`

    Description

      Used in glEnd, glDrawElements, glDrawArrays and glBegin

    Constant GL_TRIANGLE_FAN

      `constant int GL.GL_TRIANGLE_FAN`

    Description

      Used in glEnd, glDrawElements, glDrawArrays and glBegin

    Constant GL_TRIANGLE_STRIP

      `constant int GL.GL_TRIANGLE_STRIP`

    Description

      Used in glEnd, glDrawElements, glDrawArrays and glBegin

    Constant GL_TRUE

      `constant int GL.GL_TRUE`

    Description

      Used in glIsEnabled, glIsList, glAreTexturesResident, glGetIntegerv, glIsTexture, glDisable, glEdgeFlag, glEnable, glColorMask, glGetTexParameter, glGetBooleanv, glGetFloatv, glGetDoublev, glReadPixels and glEdgeFlagv

    Constant GL_UNPACK_ALIGNMENT

      `constant int GL.GL_UNPACK_ALIGNMENT`

    Description

      Used in glPixelStore, glGetIntegerv, glDrawPixels, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_UNPACK_IMAGE_HEIGHT_EXT

      `constant int GL.GL_UNPACK_IMAGE_HEIGHT_EXT`

    Constant GL_UNPACK_LSB_FIRST

      `constant int GL.GL_UNPACK_LSB_FIRST`

    Description

      Used in glPixelStore, glGetIntegerv, glDrawPixels, glGetBooleanv, glGetFloatv, glGetDoublev, glTexImage2D, glTexImage1D and glPolygonStipple

    Constant GL_UNPACK_ROW_LENGTH

      `constant int GL.GL_UNPACK_ROW_LENGTH`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_UNPACK_SKIP_IMAGES_EXT

      `constant int GL.GL_UNPACK_SKIP_IMAGES_EXT`

    Constant GL_UNPACK_SKIP_PIXELS

      `constant int GL.GL_UNPACK_SKIP_PIXELS`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_UNPACK_SKIP_ROWS

      `constant int GL.GL_UNPACK_SKIP_ROWS`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_UNPACK_SWAP_BYTES

      `constant int GL.GL_UNPACK_SWAP_BYTES`

    Description

      Used in glPixelStore, glGetIntegerv, glGetBooleanv, glGetFloatv, glGetDoublev and glPolygonStipple

    Constant GL_UNSIGNED_BYTE

      `constant int GL.GL_UNSIGNED_BYTE`

    Description

      Used in glDrawElements, glDrawPixels, glColorPointer, glTexSubImage2D, glGetTexImage, glCallLists, glReadPixels, glTexImage2D, glIndexPointer, glTexSubImage1D and glTexImage1D

    Constant GL_UNSIGNED_INT

      `constant int GL.GL_UNSIGNED_INT`

    Description

      Used in glDrawElements, glDrawPixels, glColorPointer, glTexSubImage2D, glGetTexImage, glCallLists, glReadPixels, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_UNSIGNED_INT_8_8_8_8

      `constant int GL.GL_UNSIGNED_INT_8_8_8_8`

    Constant GL_UNSIGNED_INT_8_8_8_8_REV

      `constant int GL.GL_UNSIGNED_INT_8_8_8_8_REV`

    Constant GL_UNSIGNED_SHORT

      `constant int GL.GL_UNSIGNED_SHORT`

    Description

      Used in glDrawElements, glDrawPixels, glColorPointer, glTexSubImage2D, glGetTexImage, glCallLists, glReadPixels, glTexImage2D, glTexSubImage1D and glTexImage1D

    Constant GL_V2F

      `constant int GL.GL_V2F`

    Description

      Used in glInterleavedArrays

    Constant GL_V3F

      `constant int GL.GL_V3F`

    Description

      Used in glInterleavedArrays

    Constant GL_VENDOR

      `constant int GL.GL_VENDOR`

    Description

      Used in glGetString

    Constant GL_VERSION

      `constant int GL.GL_VERSION`

    Description

      Used in glGetString

    Constant GL_VERSION_1_1

      `constant int GL.GL_VERSION_1_1`

    Constant GL_VERTEX_ARRAY

      `constant int GL.GL_VERTEX_ARRAY`

    Description

      Used in glIsEnabled, glArrayElement, glGetIntegerv, glDrawElements, glDrawArrays, glVertexPointer, glEnableClientState, glGetPointerv, glGetBooleanv, glGetFloatv, glGetDoublev and glDisableClientState

    Constant GL_VERTEX_ARRAY_POINTER

      `constant int GL.GL_VERTEX_ARRAY_POINTER`

    Description

      Used in glGetPointerv

    Constant GL_VERTEX_ARRAY_SIZE

      `constant int GL.GL_VERTEX_ARRAY_SIZE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_VERTEX_ARRAY_STRIDE

      `constant int GL.GL_VERTEX_ARRAY_STRIDE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_VERTEX_ARRAY_TYPE

      `constant int GL.GL_VERTEX_ARRAY_TYPE`

    Description

      Used in glGetIntegerv, glGetBooleanv, glGetFloatv and glGetDoublev

    Constant GL_VIEWPORT

      `constant int GL.GL_VIEWPORT`

    Description

      Used in glGetIntegerv, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv and glGetDoublev

    Constant GL_VIEWPORT_BIT

      `constant int GL.GL_VIEWPORT_BIT`

    Description

      Used in glPopAttrib and glPushAttrib

    Constant GL_WRAP_BORDER_SUN

      `constant int GL.GL_WRAP_BORDER_SUN`

    Constant GL_XOR

      `constant int GL.GL_XOR`

    Description

      Used in glLogicOp

    Constant GL_ZERO

      `constant int GL.GL_ZERO`

    Description

      Used in glGetIntegerv, glBlendFunc, glGetBooleanv, glGetFloatv, glGetDoublev and glStencilOp

    Constant GL_ZOOM_X

      `constant int GL.GL_ZOOM_X`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glCopyPixels

    Constant GL_ZOOM_Y

      `constant int GL.GL_ZOOM_Y`

    Description

      Used in glGetIntegerv, glDrawPixels, glPopAttrib, glGetBooleanv, glPushAttrib, glGetFloatv, glGetDoublev and glCopyPixels

    Method glAccum

      `void glAccum(int op, float value)`

    Description

      The accumulation buffer is an extended-range color buffer. Images are not rendered into it. Rather, images rendered into one of the color buffers are added to the contents of the accumulation buffer after rendering. Effects such as antialiasing (of points, lines, and polygons), motion blur, and depth of field can be created by accumulating images generated with different transformation matrices.

      Each pixel in the accumulation buffer consists of red, green, blue, and alpha values. The number of bits per component in the accumulation buffer depends on the implementation. You can examine this number by calling glGetIntegerv four times, with arguments GL_ACCUM_RED_BITS, GL_ACCUM_GREEN_BITS, GL_ACCUM_BLUE_BITS, and GL_ACCUM_ALPHA_BITS. Regardless of the number of bits per component, the range of values stored by each component is [-1, 1]. The accumulation buffer pixels are mapped one-to-one with frame buffer pixels.

      glAccum operates on the accumulation buffer. The first argument, op, is a symbolic constant that selects an accumulation buffer operation. The second argument, value, is a floating-point value to be used in that operation. Five operations are specified: GL_ACCUM, GL_LOAD, GL_ADD, GL_MULT, and GL_RETURN.

      All accumulation buffer operations are limited to the area of the current scissor box and applied identically to the red, green, blue, and alpha components of each pixel. If a glAccum operation results in a value outside the range [-1, 1], the contents of an accumulation buffer pixel component are undefined.

      The operations are as follows:

      GL_ACCUM

      Obtains R, G, B, and A values from the buffer currently selected for reading (see glReadBuffer). Each component value is divided by 2n1, where n is the number of bits allocated to each color component in the currently selected buffer. The result is a floating-point value in the range [0, 1], which is multiplied by value and added to the corresponding pixel component in the accumulation buffer, thereby updating the accumulation buffer.

      GL_LOAD | Similar to GL_ACCUM, except that the current value in the accumulation buffer is not used in the calculation of the new value. That is, the R, G, B, and A values from the currently selected buffer are divided by 2n1, multiplied by value, and then stored in the corresponding accumulation buffer cell, overwriting the current value.
      GL_ADD | Adds value to each R, G, B, and A in the accumulation buffer.
      GL_MULT | Multiplies each R, G, B, and A in the accumulation buffer by value and returns the scaled component to its corresponding accumulation buffer location.
      GL_RETURN | Transfers accumulation buffer values to the color buffer or buffers currently selected for writing. Each R, G, B, and A component is multiplied by value, then multiplied by 2n1, clamped to the range [0, 2n1 ], and stored in the corresponding display buffer cell. The only fragment operations that are applied to this transfer are pixel ownership, scissor, dithering, and color writemasks.

      To clear the accumulation buffer, call glClearAccum with R, G, B, and A values to set it to, then call glClear with the accumulation buffer enabled.

    Parameter `op`

      Specifies the accumulation buffer operation. Symbolic constants GL_ACCUM, GL_LOAD, GL_ADD, GL_MULT, and GL_RETURN are accepted.

    Parameter `value`

      Specifies a floating-point value used in the accumulation buffer operation. op determines how value is used.

    Throws

      GL_INVALID_ENUM is generated if op is not an accepted value.

      GL_INVALID_OPERATION is generated if there is no accumulation buffer.

      GL_INVALID_OPERATION is generated if glAccum is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glAlphaFunc

      `void glAlphaFunc(int func, float ref)`

    Description

      The alpha test discards fragments depending on the outcome of a comparison between an incoming fragment's alpha value and a constant reference value. glAlphaFunc specifies the reference value and the comparison function. The comparison is performed only if alpha testing is enabled. By default, it is not enabled. (See glEnable and glDisable of GL_ALPHA_TEST.)

      func and ref specify the conditions under which the pixel is drawn. The incoming alpha value is compared to ref using the function specified by func. If the value passes the comparison, the incoming fragment is drawn if it also passes subsequent stencil and depth buffer tests. If the value fails the comparison, no change is made to the frame buffer at that pixel location. The comparison functions are as follows:

      GL_NEVER | Never passes.
      GL_LESS | Passes if the incoming alpha value is less than the reference value.
      GL_EQUAL | Passes if the incoming alpha value is equal to the reference value.
      GL_LEQUAL | Passes if the incoming alpha value is less than or equal to the reference value.
      GL_GREATER | Passes if the incoming alpha value is greater than the reference value.
      GL_NOTEQUAL | Passes if the incoming alpha value is not equal to the reference value.
      GL_GEQUAL | Passes if the incoming alpha value is greater than or equal to the reference value.
      GL_ALWAYS | Always passes (initial value).

      glAlphaFunc operates on all pixel write operations, including those resulting from the scan conversion of points, lines, polygons, and bitmaps, and from pixel draw and copy operations. glAlphaFunc does not affect screen clear operations.

    Parameter `func`

      Specifies the alpha comparison function. Symbolic constants GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL, GL_GEQUAL, and GL_ALWAYS are accepted. The initial value is GL_ALWAYS.

    Parameter `ref`

      Specifies the reference value that incoming alpha values are compared to. This value is clamped to the range 0 through 1, where 0 represents the lowest possible alpha value and 1 the highest possible value. The initial reference value is 0.

    Throws

      GL_INVALID_ENUM is generated if func is not an accepted value.

      GL_INVALID_OPERATION is generated if glAlphaFunc is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glArrayElement

      `void glArrayElement(int i)`

    Description

      glArrayElement commands are used within glBegin/glEnd pairs to specify vertex and attribute data for point, line, and polygon primitives. If GL_VERTEX_ARRAY is enabled when glArrayElement is called, a single vertex is drawn, using vertex and attribute data taken from location i of the enabled arrays. If GL_VERTEX_ARRAY is not enabled, no drawing occurs but the attributes corresponding to the enabled arrays are modified.

      Use glArrayElement to construct primitives by indexing vertex data, rather than by streaming through arrays of data in first-to-last order. Because each call specifies only a single vertex, it is possible to explicitly specify per-primitive attributes such as a single normal per individual triangle.

      Changes made to array data between the execution of glBegin and the corresponding execution of glEnd may affect calls to glArrayElement that are made within the same glBegin/glEnd period in non-sequential ways. That is, a call to

      glArrayElement that precedes a change to array data may access the changed data, and a call that follows a change to array data may access original data.

    Parameter `i`

      Specifies an index into the enabled vertex data arrays.

    Method glBegin

      `void glBegin(int mode)`

    Description

      glBegin and glEnd delimit the vertices that define a primitive or a group of like primitives. glBegin accepts a single argument that specifies in which of ten ways the vertices are interpreted. Taking n as an integer count starting at one, and N as the total number of vertices specified, the interpretations are as follows:

      GL_POINTS | Treats each vertex as a single point. Vertex n defines point n. N points are drawn.
      GL_LINES | Treats each pair of vertices as an independent line segment. Vertices 2n-1 and 2n define line n. N/2 lines are drawn.
      GL_LINE_STRIP | Draws a connected group of line segments from the first vertex to the last. Vertices n and n+1 define line n. N-1 lines are drawn.
      GL_LINE_LOOP | Draws a connected group of line segments from the first vertex to the last, then back to the first. Vertices n and n+1 define line n. The last line, however, is defined by vertices N and 1. N lines are drawn.
      GL_TRIANGLES | Treats each triplet of vertices as an independent triangle. Vertices 3n-2, 3n-1, and 3n define triangle n. N/3 triangles are drawn.
      GL_TRIANGLE_STRIP | Draws a connected group of triangles. One triangle is defined for each vertex presented after the first two vertices. For odd n, vertices n, n+1, and n+2 define triangle n. For even n, vertices n+1, n, and n+2 define triangle n. N-2 triangles are drawn.
      GL_TRIANGLE_FAN | Draws a connected group of triangles. One triangle is defined for each vertex presented after the first two vertices. Vertices 1, n+1, and n+2 define triangle n. N-2 triangles are drawn.
      GL_QUADS | Treats each group of four vertices as an independent quadrilateral. Vertices 4n-3, 4n-2, 4n-1, and 4n define quadrilateral n. N/4 quadrilaterals are drawn.
      GL_QUAD_STRIP | Draws a connected group of quadrilaterals. One quadrilateral is defined for each pair of vertices presented after the first pair. Vertices 2n-1, 2n, 2n+2, and 2n+1 define quadrilateral n. N/2-1 quadrilaterals are drawn. Note that the order in which vertices are used to construct a quadrilateral from strip data is different from that used with independent data.
      GL_POLYGON | Draws a single, convex polygon. Vertices 1 through N define this polygon.

      Only a subset of GL commands can be used between glBegin and glEnd. The commands are glVertex, glColor, glIndex, glNormal, glTexCoord, glEvalCoord, glEvalPoint, glArrayElement, glMaterial, and glEdgeFlag. Also, it is acceptable to use glCallList or glCallLists to execute display lists that include only the preceding commands. If any other GL command is executed between glBegin and glEnd, the error flag is set and the command is ignored.

      Regardless of the value chosen for mode, there is no limit to the number of vertices that can be defined between glBegin and glEnd. Lines, triangles, quadrilaterals, and polygons that are incompletely specified are not drawn. Incomplete specification results when either too few vertices are provided to specify even a single primitive or when an incorrect multiple of vertices is specified. The incomplete primitive is ignored; the rest are drawn.

      The minimum specification of vertices for each primitive is as follows: 1 for a point, 2 for a line, 3 for a triangle, 4 for a quadrilateral, and 3 for a polygon. Modes that require a certain multiple of vertices are GL_LINES (2), GL_TRIANGLES (3), GL_QUADS (4), and GL_QUAD_STRIP (2).

    Parameter `mode`

      Specifies the primitive or primitives that will be created from vertices presented between glBegin and the subsequent glEnd. Ten symbolic constants are accepted: GL_POINTS, GL_LINES, GL_LINE_STRIP, GL_LINE_LOOP, GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS, GL_QUAD_STRIP, and GL_POLYGON.

    Throws

      GL_INVALID_ENUM is generated if mode is set to an unaccepted value.

      GL_INVALID_OPERATION is generated if glBegin is executed between a glBegin and the corresponding execution of glEnd.

      GL_INVALID_OPERATION is generated if glEnd is executed without being preceded by a glBegin.

      GL_INVALID_OPERATION is generated if a command other than glVertex, glColor, glIndex, glNormal, glTexCoord, glEvalCoord, glEvalPoint, glArrayElement, glMaterial, glEdgeFlag, glCallList, or glCallLists is executed between the execution of glBegin and the corresponding execution glEnd.

      Execution of glEnableClientState, glDisableClientState, glEdgeFlagPointer, glTexCoordPointer, glColorPointer, glIndexPointer, glNormalPointer,

      glVertexPointer, glInterleavedArrays, or glPixelStore is not allowed after a call to glBegin and before the corresponding call to glEnd, but an error may or may not be generated.

    Method glBindTexture

      `void glBindTexture(int target, int texture)`

    Description

      glBindTexture lets you create or use a named texture. Calling glBindTexture with

      target set to GL_TEXTURE_1D or GL_TEXTURE_2D and texture set to the name of the newtexture binds the texture name to the target. When a texture is bound to a target, the previous binding for that target is automatically broken.

      Texture names are unsigned integers. The value zero is reserved to represent the default texture for each texture target. Texture names and the corresponding texture contents are local to the shared display-list space (see glXCreateContext) of the current GL rendering context; two rendering contexts share texture names only if they also share display lists.

      You may use glGenTextures to generate a set of new texture names.

      When a texture is first bound, it assumes the dimensionality of its target: A texture first bound to GL_TEXTURE_1D becomes 1-dimensional and a texture first bound to GL_TEXTURE_2D becomes 2-dimensional. The state of a 1-dimensional texture immediately after it is first bound is equivalent to the state of the default GL_TEXTURE_1D at GL initialization, and similarly for 2-dimensional textures.

      While a texture is bound, GL operations on the target to which it is bound affect the bound texture, and queries of the target to which it is bound return state from the bound texture. If texture mapping of the dimensionality of the target to which a texture is bound is active, the bound texture is used. In effect, the texture targets become aliases for the textures currently bound to them, and the texture name zero refers to the default textures that were bound to them at initialization.

      A texture binding created with glBindTexture remains active until a different texture is bound to the same target, or until the bound texture is deleted with glDeleteTextures.

      Once created, a named texture may be re-bound to the target of the matching dimensionality as often as needed. It is usually much faster to use glBindTexture to bind an existing named texture to one of the texture targets than it is to reload the texture image using glTexImage1D or glTexImage2D. For additional control over performance, use glPrioritizeTextures.

      glBindTexture is included in display lists.

    Parameter `target`

      Specifies the target to which the texture is bound. Must be either GL_TEXTURE_1D or GL_TEXTURE_2D.

    Parameter `texture`

      Specifies the name of a texture.

    Throws

      GL_INVALID_ENUM is generated if target is not one of the allowable values.

      GL_INVALID_OPERATION is generated if texture has a dimensionality which doesn't match that of target.

      GL_INVALID_OPERATION is generated if glBindTexture is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glBlendFunc

      `void glBlendFunc(int sfactor, int dfactor)`

    Description

      In RGBA mode, pixels can be drawn using a function that blends the incoming (source) RGBA values with the RGBA values that are already in the frame buffer (the destination values). Blending is initially disabled. Use glEnable and glDisable with argument GL_BLEND to enable and disable blending.

      glBlendFunc defines the operation of blending when it is enabled. sfactor specifies which of nine methods is used to scale the source color components. dfactor specifies which of eight methods is used to scale the destination color components. The eleven possible methods are described in the following table. Each method defines four scale factors, one each for red, green, blue, and alpha.

      In the table and in subsequent equations, source and destination color components are referred to as (R sub s , G sub s , B sub s , A sub s ) and (R sub d , G sub d , B sub d , A sub d ). They are understood to have integer values between 0 and (k sub R , k sub G , k sub B , k sub A ), where

      .RS .ce k sub c ~=~ 2 sup m sub c - 1 .RE

      and (m sub R , m sub G , m sub B , m sub A ) is the number of red, green, blue, and alpha bitplanes.

      Source and destination scale factors are referred to as (s sub R , s sub G , s sub B , s sub A ) and (d sub R , d sub G , d sub B , d sub A ). The scale factors described in the table, denoted (f sub R , f sub G , f sub B , f sub A ), represent either source or destination factors. All scale factors have range [0,1].

      .TS center box ; ci | ci c | c . parameter (f sub R , ~~ f sub G , ~~ f sub B , ~~ f sub A ) = GL_ZERO (0, ~0, ~0, ~0 ) GL_ONE (1, ~1, ~1, ~1 ) GL_SRC_COLOR (R sub s / k sub R , ~G sub s / k sub G , ~B sub s / k sub B , ~A sub s / k sub A ) GL_ONE_MINUS_SRC_COLOR (1, ~1, ~1, ~1 ) ~-~ (R sub s / k sub R , ~G sub s / k sub G , ~B sub s / k sub B , ~A sub s / k sub A ) GL_DST_COLOR (R sub d / k sub R , ~G sub d / k sub G , ~B sub d / k sub B , ~A sub d / k sub A ) GL_ONE_MINUS_DST_COLOR (1, ~1, ~1, ~1 ) ~-~ (R sub d / k sub R , ~G sub d / k sub G , ~B sub d / k sub B , ~A sub d / k sub A ) GL_SRC_ALPHA (A sub s / k sub A , ~A sub s / k sub A , ~A sub s / k sub A , ~A sub s / k sub A ) GL_ONE_MINUS_SRC_ALPHA (1, ~1, ~1, ~1 ) ~-~ (A sub s / k sub A , ~A sub s / k sub A , ~A sub s / k sub A , ~A sub s / k sub A ) GL_DST_ALPHA (A sub d / k sub A , ~A sub d / k sub A , ~A sub d / k sub A , ~A sub d / k sub A ) GL_ONE_MINUS_DST_ALPHA (1, ~1, ~1, ~1 ) ~-~ (A sub d / k sub A , ~A sub d / k sub A , ~A sub d / k sub A , ~A sub d / k sub A ) GL_SRC_ALPHA_SATURATE (i, ~i, ~i, ~1 ) .TE .sp In the table,

      .RS .nf

      i ~=~ min (A sub s , ~k sub A - A sub d ) ~/~ k sub A .fi .RE

      To determine the blended RGBA values of a pixel when drawing in RGBA mode, the system uses the following equations:

      .RS .nf

      R sub d ~=~ min ( k sub R , ~~ R sub s s sub R + R sub d d sub R ) G sub d ~=~ min ( k sub G , ~~ G sub s s sub G + G sub d d sub G ) B sub d ~=~ min ( k sub B , ~~ B sub s s sub B + B sub d d sub B ) A sub d ~=~ min ( k sub A , ~~ A sub s s sub A + A sub d d sub A ) .fi .RE

      Despite the apparent precision of the above equations, blending arithmetic is not exactly specified, because blending operates with imprecise integer color values. However, a blend factor that should be equal to 1 is guaranteed not to modify its multiplicand, and a blend factor equal to 0 reduces its multiplicand to 0. For example, when sfactor is GL_SRC_ALPHA, dfactor is GL_ONE_MINUS_SRC_ALPHA, and A sub s is equal to k sub A, the equations reduce to simple replacement:

      .RS .nf

      R sub d ~=~ R sub s G sub d ~=~ G sub s B sub d ~=~ B sub s A sub d ~=~ A sub s .fi .RE

    Parameter `sfactor`

      Specifies how the red, green, blue, and alpha source blending factors are computed. Nine symbolic constants are accepted: GL_ZERO, GL_ONE, GL_DST_COLOR, GL_ONE_MINUS_DST_COLOR, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA, and GL_SRC_ALPHA_SATURATE. The initial value is GL_ONE.

    Parameter `dfactor`

      Specifies how the red, green, blue, and alpha destination blending factors are computed. Eight symbolic constants are accepted: GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA, and GL_ONE_MINUS_DST_ALPHA. The initial value is GL_ZERO.

    Throws

      GL_INVALID_ENUM is generated if either sfactor or dfactor is not an accepted value.

      GL_INVALID_OPERATION is generated if glBlendFunc is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glCallList

      `void glCallList(int list)`

    Description

      glCallList causes the named display list to be executed. The commands saved in the display list are executed in order, just as if they were called without using a display list. If list has not been defined as a display list, glCallList is ignored.

      glCallList can appear inside a display list. To avoid the possibility of infinite recursion resulting from display lists calling one another, a limit is placed on the nesting level of display lists during display-list execution. This limit is at least 64, and it depends on the implementation.

      GL state is not saved and restored across a call to glCallList. Thus, changes made to GL state during the execution of a display list remain after execution of the display list is completed. Use glPushAttrib, glPopAttrib, glPushMatrix, and glPopMatrix to preserve GL state across glCallList calls.

    Parameter `list`

      Specifies the integer name of the display list to be executed.

    Method glClear

      `void glClear(int mask)`

    Description

      glClear sets the bitplane area of the window to values previously selected by glClearColor, glClearIndex, glClearDepth, glClearStencil, and glClearAccum. Multiple color buffers can be cleared simultaneously by selecting more than one buffer at a time using glDrawBuffer.

      The pixel ownership test, the scissor test, dithering, and the buffer writemasks affect the operation of glClear. The scissor box bounds the cleared region. Alpha function, blend function, logical operation, stenciling, texture mapping, and depth-buffering are ignored by glClear.

      glClear takes a single argument that is the bitwise OR of several values indicating which buffer is to be cleared.

      The values are as follows:

      GL_COLOR_BUFFER_BIT | Indicates the buffers currently enabled for color writing.
      GL_DEPTH_BUFFER_BIT | Indicates the depth buffer.
      GL_ACCUM_BUFFER_BIT | Indicates the accumulation buffer.
      GL_STENCIL_BUFFER_BIT | Indicates the stencil buffer.

      The value to which each buffer is cleared depends on the setting of the clear value for that buffer.

    Parameter `mask`

      Bitwise OR of masks that indicate the buffers to be cleared. The four masks are GL_COLOR_BUFFER_BIT, GL_DEPTH_BUFFER_BIT, GL_ACCUM_BUFFER_BIT, and GL_STENCIL_BUFFER_BIT.

    Throws

      GL_INVALID_VALUE is generated if any bit other than the four defined bits is set in mask.

      GL_INVALID_OPERATION is generated if glClear is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glClearAccum

      `void glClearAccum(float|array(float) red, float|void green, float|void blue, float|void alpha)`

    Description

      glClearAccum specifies the red, green, blue, and alpha values used by glClear to clear the accumulation buffer.

      Values specified by glClearAccum are clamped to the range [-1,1].

    Parameter `red`

      Specify the red, green, blue, and alpha values used when the accumulation buffer is cleared. The initial values are all 0.

    Throws

      GL_INVALID_OPERATION is generated if glClearAccum is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glClearColor

      `void glClearColor(float|array(float) red, float|void green, float|void blue, float|void alpha)`

    Description

      glClearColor specifies the red, green, blue, and alpha values used by glClear to clear the color buffers. Values specified by glClearColor are clamped to the range [0,1].

    Parameter `red`

      Specify the red, green, blue, and alpha values used when the color buffers are cleared. The initial values are all 0.

    Throws

      GL_INVALID_OPERATION is generated if glClearColor is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glClearDepth

      `void glClearDepth(float depth)`

    Description

      glClearDepth specifies the depth value used by glClear to clear the depth buffer. Values specified by glClearDepth are clamped to the range [0,1].

    Parameter `depth`

      Specifies the depth value used when the depth buffer is cleared. The initial value is 1.

    Throws

      GL_INVALID_OPERATION is generated if glClearDepth is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glClearIndex

      `void glClearIndex(float c)`

    Description

      glClearIndex specifies the index used by glClear to clear the color index buffers. c is not clamped. Rather, c is converted to a fixed-point value with unspecified precision to the right of the binary point. The integer part of this value is then masked with 2 sup m -1, where m is the number of bits in a color index stored in the frame buffer.

    Parameter `c`

      Specifies the index used when the color index buffers are cleared. The initial value is 0.

    Throws

      GL_INVALID_OPERATION is generated if glClearIndex is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glClearStencil

      `void glClearStencil(int s)`

    Description

      glClearStencil specifies the index used by glClear to clear the stencil buffer. s is masked with 2 sup m - 1, where m is the number of bits in the stencil buffer.

    Parameter `s`

      Specifies the index used when the stencil buffer is cleared. The initial value is 0.

    Throws

      GL_INVALID_OPERATION is generated if glClearStencil is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glColor

      `void glColor(float|int red, float|int green, float|int blue, float|int|void alpha)`
      `void glColor(array(float|int) rgb)`

    Description

      The GL stores both a current single-valued color index and a current four-valued RGBA color. If no alpha value has been give, 1.0 (full intensity) is implied.

      Current color values are stored in floating-point format, with unspecified mantissa and exponent sizes. Unsigned integer color components, when specified, are linearly mapped to floating-point values such that the largest representable value maps to 1.0 (full intensity), and 0 maps to 0.0 (zero intensity). Signed integer color components, when specified, are linearly mapped to floating-point values such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. (Note that this mapping does not convert 0 precisely to 0.0.) Floating-point values are mapped directly.

      Neither floating-point nor signed integer values are clamped to the range [0,1] before the current color is updated. However, color components are clamped to this range before they are interpolated or written into a color buffer.

    Parameter `red`

      Specify new red, green, and blue values for the current color.

    Parameter `alpha`

      Specifies a new alpha value for the current color.

    Method glColorMask

      `void glColorMask(int red, int green, int blue, int alpha)`

    Description

      glColorMask specifies whether the individual color components in the frame buffer can or cannot be written. If red is GL_FALSE, for example, no change is made to the red component of any pixel in any of the color buffers, regardless of the drawing operation attempted.

      Changes to individual bits of components cannot be controlled. Rather, changes are either enabled or disabled for entire color components.

    Parameter `red`

      Specify whether red, green, blue, and alpha can or cannot be written into the frame buffer. The initial values are all GL_TRUE, indicating that the color components can be written.

    Throws

      GL_INVALID_OPERATION is generated if glColorMask is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glColorMaterial

      `void glColorMaterial(int face, int mode)`

    Description

      glColorMaterial specifies which material parameters track the current color. When GL_COLOR_MATERIAL is enabled, the material parameter or parameters specified by mode, of the material or materials specified by face, track the current color at all times.

      To enable and disable GL_COLOR_MATERIAL, call glEnable and glDisable with argument GL_COLOR_MATERIAL. GL_COLOR_MATERIAL is initially disabled.

    Parameter `face`

      Specifies whether front, back, or both front and back material parameters should track the current color. Accepted values are GL_FRONT, GL_BACK, and GL_FRONT_AND_BACK. The initial value is GL_FRONT_AND_BACK.

    Parameter `mode`

      Specifies which of several material parameters track the current color. Accepted values are GL_EMISSION, GL_AMBIENT, GL_DIFFUSE, GL_SPECULAR, and GL_AMBIENT_AND_DIFFUSE. The initial value is GL_AMBIENT_AND_DIFFUSE.

    Throws

      GL_INVALID_ENUM is generated if face or mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glColorMaterial is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glCopyPixels

      `void glCopyPixels(int x, int y, int width, int height, int type)`

    Description

      glCopyPixels copies a screen-aligned rectangle of pixels from the specified frame buffer location to a region relative to the current raster position. Its operation is well defined only if the entire pixel source region is within the exposed portion of the window. Results of copies from outside the window, or from regions of the window that are not exposed, are hardware dependent and undefined.

      x and y specify the window coordinates of the lower left corner of the rectangular region to be copied. width and height specify the dimensions of the rectangular region to be copied. Both width and height must not be negative.

      Several parameters control the processing of the pixel data while it is being copied. These parameters are set with three commands: glPixelTransfer, glPixelMap, and glPixelZoom. This reference page describes the effects on glCopyPixels of most, but not all, of the parameters specified by these three commands.

      glCopyPixels copies values from each pixel with the lower left-hand corner at (x + i, y + j) for 0\(<=i<width and 0\(<=j<height. This pixel is said to be the ith pixel in the jth row. Pixels are copied in row order from the lowest to the highest row, left to right in each row.

      type specifies whether color, depth, or stencil data is to be copied. The details of the transfer for each data type are as follows:

      GL_COLOR

      Indices or RGBA colors are read from the buffer currently specified as the read source buffer (see glReadBuffer). If the GL is in color index mode, each index that is read from this buffer is converted to a fixed-point format with an unspecified number of bits to the right of the binary point. Each index is then shifted left by GL_INDEX_SHIFT bits, and added to GL_INDEX_OFFSET. If GL_INDEX_SHIFT is negative, the shift is to the right. In either case, zero bits fill otherwise unspecified bit locations in the result. If GL_MAP_COLOR is true, the index is replaced with the value that it references in lookup table GL_PIXEL_MAP_I_TO_I. Whether the lookup replacement of the index is done or not, the integer part of the index is then ANDed with 2 sup b -1, where b is the number of bits in a color index buffer. If the GL is in RGBA mode, the red, green, blue, and alpha components of each pixel that is read are converted to an internal floating-point format with unspecified precision. The conversion maps the largest representable component value to 1.0, and component value 0 to 0.0. The resulting floating-point color values are then multiplied by GL_c_SCALE and added to GL_c_BIAS, where c is RED, GREEN, BLUE, and ALPHA for the respective color components. The results are clamped to the range [0,1]. If GL_MAP_COLOR is true, each color component is scaled by the size of lookup table GL_PIXEL_MAP_c_TO_c, then replaced by the value that it references in that table. c is R, G, B, or A. The GL then converts the resulting indices or RGBA colors to fragments by attaching the current raster position z coordinate and texture coordinates to each pixel, then assigning window coordinates (x sub r + i , y sub r + j), where (x sub r , y sub r) is the current raster position, and the pixel was the ith pixel in the jth row. These pixel fragments are then treated just like the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog, and all the fragment operations are applied before the fragments are written to the frame buffer.

      GL_DEPTH

      Depth values are read from the depth buffer and converted directly to an internal floating-point format with unspecified precision. The resulting floating-point depth value is then multiplied by GL_DEPTH_SCALE and added to GL_DEPTH_BIAS. The result is clamped to the range [0,1]. The GL then converts the resulting depth components to fragments by attaching the current raster position color or color index and texture coordinates to each pixel, then assigning window coordinates (x sub r + i , y sub r + j), where (x sub r , y sub r) is the current raster position, and the pixel was the ith pixel in the jth row. These pixel fragments are then treated just like the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog, and all the fragment operations are applied before the fragments are written to the frame buffer.

      GL_STENCIL

      Stencil indices are read from the stencil buffer and converted to an internal fixed-point format with an unspecified number of bits to the right of the binary point. Each fixed-point index is then shifted left by GL_INDEX_SHIFT bits, and added to GL_INDEX_OFFSET. If GL_INDEX_SHIFT is negative, the shift is to the right. In either case, zero bits fill otherwise unspecified bit locations in the result. If GL_MAP_STENCIL is true, the index is replaced with the value that it references in lookup table GL_PIXEL_MAP_S_TO_S. Whether the lookup replacement of the index is done or not, the integer part of the index is then ANDed with 2 sup b -1, where b is the number of bits in the stencil buffer. The resulting stencil indices are then written to the stencil buffer such that the index read from the ith location of the jth row is written to location (x sub r + i , y sub r + j), where (x sub r , y sub r) is the current raster position. Only the pixel ownership test, the scissor test, and the stencil writemask affect these write operations.

      The rasterization described thus far assumes pixel zoom factors of 1.0. If

      glPixelZoom is used to change the x and y pixel zoom factors, pixels are converted to fragments as follows. If (x sub r, y sub r) is the current raster position, and a given pixel is in the ith location in the jth row of the source pixel rectangle, then fragments are generated for pixels whose centers are in the rectangle with corners at

      .ce (x sub r + zoom sub x i, y sub r + zoom sub y j) .sp .5 .ce and .sp .5 .ce (x sub r + zoom sub x (i + 1), y sub r + zoom sub y ( j + 1 ))

      where zoom sub x is the value of GL_ZOOM_X and zoom sub y is the value of GL_ZOOM_Y.

    Parameter `x`

      Specify the window coordinates of the lower left corner of the rectangular region of pixels to be copied.

    Parameter `width`

      Specify the dimensions of the rectangular region of pixels to be copied. Both must be nonnegative.

    Parameter `type`

      Specifies whether color values, depth values, or stencil values are to be copied. Symbolic constants GL_COLOR, GL_DEPTH, and GL_STENCIL are accepted.

    Throws

      GL_INVALID_ENUM is generated if type is not an accepted value.

      GL_INVALID_VALUE is generated if either width or height is negative.

      GL_INVALID_OPERATION is generated if type is GL_DEPTH and there is no depth buffer.

      GL_INVALID_OPERATION is generated if type is GL_STENCIL and there is no stencil buffer.

      GL_INVALID_OPERATION is generated if glCopyPixels is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glCopyTexImage1D

      `void glCopyTexImage1D(int target, int level, int internalFormat, int x, int y, int width, int border)`

    Description

      glCopyTexImage1D defines a one-dimensional texture image with pixels from the current GL_READ_BUFFER.

      The screen-aligned pixel row with left corner at ("x", "y") and with a length of "width"~+~2~*~"border" defines the texture array at the mipmap level specified by level. internalFormat specifies the internal format of the texture array.

      The pixels in the row are processed exactly as if glCopyPixels had been called, but the process stops just before final conversion. At this point all pixel component values are clamped to the range [0,\ 1] and then converted to the texture's internal format for storage in the texel array.

      Pixel ordering is such that lower x screen coordinates correspond to lower texture coordinates.

      If any of the pixels within the specified row of the current GL_READ_BUFFER are outside the window associated with the current rendering context, then the values obtained for those pixels are undefined.

    Parameter `target`

      Specifies the target texture. Must be GL_TEXTURE_1D.

    Parameter `level`

      Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

    Parameter `internalFormat`

      Specifies the internal format of the texture. Must be one of the following symbolic constants: GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_ALPHA12, GL_ALPHA16, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, GL_LUMINANCE12, GL_LUMINANCE16, GL_LUMINANCE_ALPHA, GL_LUMINANCE4_ALPHA4, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12, GL_LUMINANCE16_ALPHA16, GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8, GL_INTENSITY12, GL_INTENSITY16, GL_RGB, GL_R3_G3_B2, GL_RGB4, GL_RGB5, GL_RGB8, GL_RGB10, GL_RGB12, GL_RGB16, GL_RGBA, GL_RGBA2, GL_RGBA4, GL_RGB5_A1, GL_RGBA8, GL_RGB10_A2, GL_RGBA12, or GL_RGBA16.

    Parameter `x`

      Specify the window coordinates of the left corner of the row of pixels to be copied.

    Parameter `width`

      Specifies the width of the texture image. Must be 0 or 2**n ~+~ 2*border for some integer n. The height of the texture image is 1.

    Parameter `border`

      Specifies the width of the border. Must be either 0 or 1.

    Throws

      GL_INVALID_ENUM is generated if target is not one of the allowable values.

      GL_INVALID_VALUE is generated if level is less than 0. .P GL_INVALID_VALUE may be generated if level is greater than log sub 2 max, where max is the returned value of GL_MAX_TEXTURE_SIZE. .P GL_INVALID_VALUE is generated if internalFormat is not an allowable value.

      GL_INVALID_VALUE is generated if width is less than 0 or greater than 2 + GL_MAX_TEXTURE_SIZE, or if it cannot be represented as 2 ** n ~+~ 2~*~("border") for some integer value of n.

      GL_INVALID_VALUE is generated if border is not 0 or 1.

      GL_INVALID_OPERATION is generated if glCopyTexImage1D is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glCopyTexImage2D

      `void glCopyTexImage2D(int target, int level, int internalFormat, int x, int y, int width, int height, int border)`

    Description

      glCopyTexImage2D defines a two-dimensional texture image with pixels from the current GL_READ_BUFFER.

      The screen-aligned pixel rectangle with lower left corner at (x, y) and with a width of width~+~2~*~border and a height of height~+~2~*~border defines the texture array at the mipmap level specified by level. internalFormat specifies the internal format of the texture array.

      The pixels in the rectangle are processed exactly as if glCopyPixels had been called, but the process stops just before final conversion. At this point all pixel component values are clamped to the range [0,1] and then converted to the texture's internal format for storage in the texel array.

      Pixel ordering is such that lower x and y screen coordinates correspond to lower s and t texture coordinates.

      If any of the pixels within the specified rectangle of the current GL_READ_BUFFER are outside the window associated with the current rendering context, then the values obtained for those pixels are undefined.

    Parameter `target`

      Specifies the target texture. Must be GL_TEXTURE_2D.

    Parameter `level`

      Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

    Parameter `internalFormat`

      Specifies the internal format of the texture. Must be one of the following symbolic constants: GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_ALPHA12, GL_ALPHA16, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, GL_LUMINANCE12, GL_LUMINANCE16, GL_LUMINANCE_ALPHA, GL_LUMINANCE4_ALPHA4, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12, GL_LUMINANCE16_ALPHA16, GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8, GL_INTENSITY12, GL_INTENSITY16, GL_RGB, GL_R3_G3_B2, GL_RGB4, GL_RGB5, GL_RGB8, GL_RGB10, GL_RGB12, GL_RGB16, GL_RGBA, GL_RGBA2, GL_RGBA4, GL_RGB5_A1, GL_RGBA8, GL_RGB10_A2, GL_RGBA12, or GL_RGBA16.

    Parameter `x`

      Specify the window coordinates of the lower left corner of the rectangular region of pixels to be copied.

    Parameter `width`

      Specifies the width of the texture image. Must be 0 or 2**n ~+~ 2*border for some integer n.

    Parameter `height`

      Specifies the height of the texture image. Must be 0 or 2**m ~+~ 2*border for some integer m.

    Parameter `border`

      Specifies the width of the border. Must be either 0 or 1.

    Throws

      GL_INVALID_ENUM is generated if target is not GL_TEXTURE_2D.

      GL_INVALID_VALUE is generated if level is less than 0. .P GL_INVALID_VALUE may be generated if level is greater than log sub 2 max, where max is the returned value of GL_MAX_TEXTURE_SIZE.

      GL_INVALID_VALUE is generated if width or height is less than 0, greater than 2~+~GL_MAX_TEXTURE_SIZE, or if width or height cannot be represented as 2**k ~+~ 2~*~border for some integer k.

      GL_INVALID_VALUE is generated if border is not 0 or 1.

      GL_INVALID_VALUE is generated if internalFormat is not one of the allowable values.

      GL_INVALID_OPERATION is generated if glCopyTexImage2D is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glCopyTexSubImage1D

      `void glCopyTexSubImage1D(int target, int level, int xoffset, int x, int y, int width)`

    Description

      glCopyTexSubImage1D replaces a portion of a one-dimensional texture image with pixels from the current GL_READ_BUFFER (rather than from main memory, as is the case for glTexSubImage1D).

      The screen-aligned pixel row with left corner at (x,\ y), and with length width replaces the portion of the texture array with x indices xoffset through "xoffset" ~+~ "width" ~-~ 1, inclusive. The destination in the texture array may not include any texels outside the texture array as it was originally specified.

      The pixels in the row are processed exactly as if glCopyPixels had been called, but the process stops just before final conversion. At this point all pixel component values are clamped to the range [0,\ 1] and then converted to the texture's internal format for storage in the texel array.

      It is not an error to specify a subtexture with zero width, but such a specification has no effect. If any of the pixels within the specified row of the current GL_READ_BUFFER are outside the read window associated with the current rendering context, then the values obtained for those pixels are undefined.

      No change is made to the internalformat, width, or border parameters of the specified texture array or to texel values outside the specified subregion.

    Parameter `target`

      Specifies the target texture. Must be GL_TEXTURE_1D.

    Parameter `level`

      Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

    Parameter `xoffset`

      Specifies the texel offset within the texture array.

    Parameter `x`

      Specify the window coordinates of the left corner of the row of pixels to be copied.

    Parameter `width`

      Specifies the width of the texture subimage.

    Throws

      GL_INVALID_ENUM is generated if target is not GL_TEXTURE_1D.

      GL_INVALID_OPERATION is generated if the texture array has not been defined by a previous glTexImage1D or glCopyTexImage1D operation.

      GL_INVALID_VALUE is generated if level is less than 0. .P GL_INVALID_VALUE may be generated if level>log sub 2 max, where max is the returned value of GL_MAX_TEXTURE_SIZE.

      GL_INVALID_VALUE is generated if y ~<~ ~-b or if width ~<~ ~-b, where b is the border width of the texture array.

      GL_INVALID_VALUE is generated if "xoffset" ~<~ ~-b, or ("xoffset"~+~"width") ~>~ (w-b), where w is the GL_TEXTURE_WIDTH, and b is the GL_TEXTURE_BORDER of the texture image being modified. Note that w includes twice the border width.

    Method glCopyTexSubImage2D

      `void glCopyTexSubImage2D(int target, int level, int xoffset, int yoffset, int x, int y, int width, int height)`

    Description

      glCopyTexSubImage2D replaces a rectangular portion of a two-dimensional texture image with pixels from the current GL_READ_BUFFER (rather than from main memory, as is the case for glTexSubImage2D).

      The screen-aligned pixel rectangle with lower left corner at (x,\ y) and with width width and height height replaces the portion of the texture array with x indices xoffset through xoffset~+~width~-~1, inclusive, and y indices yoffset through yoffset~+~height~-~1, inclusive, at the mipmap level specified by level.

      The pixels in the rectangle are processed exactly as if glCopyPixels had been called, but the process stops just before final conversion. At this point, all pixel component values are clamped to the range [0,\ 1] and then converted to the texture's internal format for storage in the texel array.

      The destination rectangle in the texture array may not include any texels outside the texture array as it was originally specified. It is not an error to specify a subtexture with zero width or height, but such a specification has no effect.

      If any of the pixels within the specified rectangle of the current GL_READ_BUFFER are outside the read window associated with the current rendering context, then the values obtained for those pixels are undefined.

      No change is made to the internalformat, width, height, or border parameters of the specified texture array or to texel values outside the specified subregion.

    Parameter `target`

      Specifies the target texture. Must be GL_TEXTURE_2D

    Parameter `level`

      Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

    Parameter `xoffset`

      Specifies a texel offset in the x direction within the texture array.

    Parameter `yoffset`

      Specifies a texel offset in the y direction within the texture array.

    Parameter `x`

      Specify the window coordinates of the lower left corner of the rectangular region of pixels to be copied.

    Parameter `width`

      Specifies the width of the texture subimage.

    Parameter `height`

      Specifies the height of the texture subimage.

    Throws

      GL_INVALID_ENUM is generated if target is not GL_TEXTURE_2D.

      GL_INVALID_OPERATION is generated if the texture array has not been defined by a previous glTexImage2D or glCopyTexImage2D operation.

      GL_INVALID_VALUE is generated if level is less than 0. .P GL_INVALID_VALUE may be generated if level is greater than log sub 2 max, where max is the returned value of GL_MAX_TEXTURE_SIZE.

      GL_INVALID_VALUE is generated if x ~<~ ~-b or if y ~<~ ~-b, where b is the border width of the texture array.

      GL_INVALID_VALUE is generated if "xoffset" ~<~ -b, (xoffset~+~width)~>~(w ~-~b), yoffset~<~ ~-b, or (yoffset~+~height)~>~(h ~-~b), where w is the GL_TEXTURE_WIDTH, h is the GL_TEXTURE_HEIGHT, and b is the GL_TEXTURE_BORDER of the texture image being modified. Note that w and h include twice the border width.

      GL_INVALID_OPERATION is generated if glCopyTexSubImage2D is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glCullFace

      `void glCullFace(int mode)`

    Description

      glCullFace specifies whether front- or back-facing facets are culled (as specified by mode) when facet culling is enabled. Facet culling is initially disabled. To enable and disable facet culling, call the glEnable and glDisable commands with the argument GL_CULL_FACE. Facets include triangles, quadrilaterals, polygons, and rectangles.

      glFrontFace specifies which of the clockwise and counterclockwise facets are front-facing and back-facing. See glFrontFace.

    Parameter `mode`

      Specifies whether front- or back-facing facets are candidates for culling. Symbolic constants GL_FRONT, GL_BACK, and GL_FRONT_AND_BACK are accepted. The initial value is GL_BACK.

    Throws

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glCullFace is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDeleteLists

      `void glDeleteLists(int list, int range)`

    Description

      glDeleteLists causes a contiguous group of display lists to be deleted. list is the name of the first display list to be deleted, and range is the number of display lists to delete. All display lists \fId\fP with list \(<= \fId\fP \(<= list + range - 1 are deleted.

      All storage locations allocated to the specified display lists are freed, and the names are available for reuse at a later time. Names within the range that do not have an associated display list are ignored. If range is 0, nothing happens.

    Parameter `list`

      Specifies the integer name of the first display list to delete.

    Parameter `range`

      Specifies the number of display lists to delete.

    Throws

      GL_INVALID_VALUE is generated if range is negative.

      GL_INVALID_OPERATION is generated if glDeleteLists is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDepthFunc

      `void glDepthFunc(int func)`

    Description

      glDepthFunc specifies the function used to compare each incoming pixel depth value with the depth value present in the depth buffer. The comparison is performed only if depth testing is enabled. (See glEnable and glDisable of GL_DEPTH_TEST.)

      func specifies the conditions under which the pixel will be drawn. The comparison functions are as follows:

      GL_NEVER | Never passes.
      GL_LESS | Passes if the incoming depth value is less than the stored depth value.
      GL_EQUAL | Passes if the incoming depth value is equal to the stored depth value.
      GL_LEQUAL | Passes if the incoming depth value is less than or equal to the stored depth value.
      GL_GREATER | Passes if the incoming depth value is greater than the stored depth value.
      GL_NOTEQUAL | Passes if the incoming depth value is not equal to the stored depth value.
      GL_GEQUAL | Passes if the incoming depth value is greater than or equal to the stored depth value.
      GL_ALWAYS | Always passes.

      The initial value of func is GL_LESS. Initially, depth testing is disabled. .NOTES Even if the depth buffer exists and the depth mask is non-zero, the depth buffer is not updated if the depth test is disabled.

    Parameter `func`

      Specifies the depth comparison function. Symbolic constants GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL, GL_GEQUAL, and GL_ALWAYS are accepted. The initial value is GL_LESS.

    Throws

      GL_INVALID_ENUM is generated if func is not an accepted value.

      GL_INVALID_OPERATION is generated if glDepthFunc is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDepthMask

      `void glDepthMask(int flag)`

    Description

      glDepthMask specifies whether the depth buffer is enabled for writing. If flag is GL_FALSE, depth buffer writing is disabled. Otherwise, it is enabled. Initially, depth buffer writing is enabled.

    Parameter `flag`

      Specifies whether the depth buffer is enabled for writing. If flag is GL_FALSE, depth buffer writing is disabled. Otherwise, it is enabled. Initially, depth buffer writing is enabled.

    Throws

      GL_INVALID_OPERATION is generated if glDepthMask is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDepthRange

      `void glDepthRange(float zNear, float zFar)`

    Description

      After clipping and division by w, depth coordinates range from -1 to 1, corresponding to the near and far clipping planes. glDepthRange specifies a linear mapping of the normalized depth coordinates in this range to window depth coordinates. Regardless of the actual depth buffer implementation, window coordinate depth values are treated as though they range from 0 through 1 (like color components). Thus, the values accepted by glDepthRange are both clamped to this range before they are accepted.

      The setting of (0,1) maps the near plane to 0 and the far plane to 1. With this mapping, the depth buffer range is fully utilized.

    Parameter `zNear`

      Specifies the mapping of the near clipping plane to window coordinates. The initial value is 0.

    Parameter `zFar`

      Specifies the mapping of the far clipping plane to window coordinates. The initial value is 1.

    Throws

      GL_INVALID_OPERATION is generated if glDepthRange is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDisable

      `void glDisable(int cap)`

    Description

      glEnable and glDisable enable and disable various capabilities. Use glIsEnabled or glGet to determine the current setting of any capability. The initial value for each capability with the exception of GL_DITHER is GL_FALSE. The initial value for GL_DITHER is GL_TRUE.

      Both glEnable and glDisable take a single argument, cap, which can assume one of the following values:

      GL_ALPHA_TEST | If enabled, do alpha testing. See glAlphaFunc.
      GL_AUTO_NORMAL | If enabled, generate normal vectors when either GL_MAP2_VERTEX_3 or GL_MAP2_VERTEX_4 is used to generate vertices. See glMap2.
      GL_BLEND | If enabled, blend the incoming RGBA color values with the values in the color buffers. See glBlendFunc.
      GL_CLIP_PLANE i | If enabled, clip geometry against user-defined clipping plane i. See glClipPlane.
      GL_COLOR_LOGIC_OP | If enabled, apply the currently selected logical operation to the incoming RGBA color and color buffer values. See glLogicOp.
      GL_COLOR_MATERIAL | If enabled, have one or more material parameters track the current color. See glColorMaterial.
      GL_CULL_FACE | If enabled, cull polygons based on their winding in window coordinates. See glCullFace.
      GL_DEPTH_TEST | If enabled, do depth comparisons and update the depth buffer. Note that even if the depth buffer exists and the depth mask is non-zero, the depth buffer is not updated if the depth test is disabled. See glDepthFunc and glDepthRange.
      GL_DITHER | If enabled, dither color components or indices before they are written to the color buffer.
      GL_FOG | If enabled, blend a fog color into the posttexturing color. See glFog.
      GL_INDEX_LOGIC_OP | If enabled, apply the currently selected logical operation to the incoming index and color buffer indices. See glLogicOp.
      GL_LIGHT i | If enabled, include light i in the evaluation of the lighting equation. See glLightModel and glLight.
      GL_LIGHTING | If enabled, use the current lighting parameters to compute the vertex color or index. Otherwise, simply associate the current color or index with each vertex. See glMaterial, glLightModel, and glLight.
      GL_LINE_SMOOTH | If enabled, draw lines with correct filtering. Otherwise, draw aliased lines. See glLineWidth.
      GL_LINE_STIPPLE | If enabled, use the current line stipple pattern when drawing lines. See glLineStipple.
      GL_MAP1_COLOR_4 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate RGBA values. See glMap1.
      GL_MAP1_INDEX | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate color indices. See glMap1.
      GL_MAP1_NORMAL | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate normals. See glMap1.
      GL_MAP1_TEXTURE_COORD_1 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s texture coordinates. See glMap1.
      GL_MAP1_TEXTURE_COORD_2 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s and t texture coordinates. See glMap1.
      GL_MAP1_TEXTURE_COORD_3 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s, t, and r texture coordinates. See glMap1.
      GL_MAP1_TEXTURE_COORD_4 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s, t, r, and q texture coordinates. See glMap1.
      GL_MAP1_VERTEX_3 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate x, y, and z vertex coordinates. See glMap1.
      GL_MAP1_VERTEX_4 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate homogeneous x, y, z, and w vertex coordinates. See glMap1.
      GL_MAP2_COLOR_4 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate RGBA values. See glMap2.
      GL_MAP2_INDEX | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate color indices. See glMap2.
      GL_MAP2_NORMAL | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate normals. See glMap2.
      GL_MAP2_TEXTURE_COORD_1 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s texture coordinates. See glMap2.
      GL_MAP2_TEXTURE_COORD_2 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s and t texture coordinates. See glMap2.
      GL_MAP2_TEXTURE_COORD_3 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s, t, and r texture coordinates. See glMap2.
      GL_MAP2_TEXTURE_COORD_4 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s, t, r, and q texture coordinates. See glMap2.
      GL_MAP2_VERTEX_3 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate x, y, and z vertex coordinates. See glMap2.
      GL_MAP2_VERTEX_4 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate homogeneous x, y, z, and w vertex coordinates. See glMap2.
      GL_NORMALIZE | If enabled, normal vectors specified with glNormal are scaled to unit length after transformation. See glNormal.
      GL_POINT_SMOOTH | If enabled, draw points with proper filtering. Otherwise, draw aliased points. See glPointSize.
      GL_POLYGON_OFFSET_FILL | If enabled, and if the polygon is rendered in GL_FILL mode, an offset is added to depth values of a polygon's fragments before the depth comparison is performed. See glPolygonOffset.
      GL_POLYGON_OFFSET_LINE | If enabled, and if the polygon is rendered in GL_LINE mode, an offset is added to depth values of a polygon's fragments before the depth comparison is performed. See glPolygonOffset.
      GL_POLYGON_OFFSET_POINT | If enabled, an offset is added to depth values of a polygon's fragments before the depth comparison is performed, if the polygon is rendered in GL_POINT mode. See glPolygonOffset.
      GL_POLYGON_SMOOTH | If enabled, draw polygons with proper filtering. Otherwise, draw aliased polygons. For correct anti-aliased polygons, an alpha buffer is needed and the polygons must be sorted front to back.
      GL_POLYGON_STIPPLE | If enabled, use the current polygon stipple pattern when rendering polygons. See glPolygonStipple.
      GL_SCISSOR_TEST | If enabled, discard fragments that are outside the scissor rectangle. See glScissor.
      GL_STENCIL_TEST | If enabled, do stencil testing and update the stencil buffer. See glStencilFunc and glStencilOp.
      GL_TEXTURE_1D | If enabled, one-dimensional texturing is performed (unless two-dimensional texturing is also enabled). See glTexImage1D.
      GL_TEXTURE_2D | If enabled, two-dimensional texturing is performed. See glTexImage2D.
      GL_TEXTURE_GEN_Q | If enabled, the q texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current q texture coordinate is used. See glTexGen.
      GL_TEXTURE_GEN_R | If enabled, the r texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current r texture coordinate is used. See glTexGen.
      GL_TEXTURE_GEN_S | If enabled, the s texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current s texture coordinate is used. See glTexGen.
      GL_TEXTURE_GEN_T | If enabled, the t texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current t texture coordinate is used. See glTexGen.

    Parameter `cap`

      Specifies a symbolic constant indicating a GL capability.

    Parameter `cap`

      Specifies a symbolic constant indicating a GL capability.

    Throws

      GL_INVALID_ENUM is generated if cap is not one of the values listed previously.

      GL_INVALID_OPERATION is generated if glEnable or glDisable is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDisableClientState

      `void glDisableClientState(int cap)`

    Description

      glEnableClientState and glDisableClientState enable or disable individual client-side capabilities. By default, all client-side capabilities are disabled. Both glEnableClientState and glDisableClientState take a single argument, cap, which can assume one of the following values:

      GL_COLOR_ARRAY | If enabled, the color array is enabled for writing and used during rendering when glDrawArrays or glDrawElement is called. See glColorPointer.
      GL_EDGE_FLAG_ARRAY | If enabled, the edge flag array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glEdgeFlagPointer.
      GL_INDEX_ARRAY | If enabled, the index array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glIndexPointer.
      GL_NORMAL_ARRAY | If enabled, the normal array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glNormalPointer.
      GL_TEXTURE_COORD_ARRAY | If enabled, the texture coordinate array is enabled for writing and used for rendering when glDrawArrays or glDrawElements is called. See glTexCoordPointer.
      GL_VERTEX_ARRAY | If enabled, the vertex array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glVertexPointer.

    Parameter `cap`

      Specifies the capability to enable. Symbolic constants GL_COLOR_ARRAY, GL_EDGE_FLAG_ARRAY, GL_INDEX_ARRAY, GL_NORMAL_ARRAY, GL_TEXTURE_COORD_ARRAY, and GL_VERTEX_ARRAY are accepted.

    Parameter `cap`

      Specifies the capability to disable.

    Throws

      GL_INVALID_ENUM is generated if cap is not an accepted value.

      glEnableClientState is not allowed between the execution of glBegin and the corresponding glEnd, but an error may or may not be generated. If no error is generated, the behavior is undefined.

    Method glDrawArrays

      `void glDrawArrays(int mode, int first, int count)`

    Description

      glDrawArrays specifies multiple geometric primitives with very few subroutine calls. Instead of calling a GL procedure to pass each individual vertex, normal, texture coordinate, edge flag, or color, you can prespecify separate arrays of vertexes, normals, and colors and use them to construct a sequence of primitives with a single call to glDrawArrays.

      When glDrawArrays is called, it uses count sequential elements from each enabled array to construct a sequence of geometric primitives, beginning with element first. mode specifies what kind of primitives are constructed, and how the array elements construct those primitives. If GL_VERTEX_ARRAY is not enabled, no geometric primitives are generated.

      Vertex attributes that are modified by glDrawArrays have an unspecified value after glDrawArrays returns. For example, if GL_COLOR_ARRAY is enabled, the value of the current color is undefined after glDrawArrays executes. Attributes that aren't modified remain well defined.

    Parameter `mode`

      Specifies what kind of primitives to render. Symbolic constants GL_POINTS, GL_LINE_STRIP, GL_LINE_LOOP, GL_LINES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLES, GL_QUAD_STRIP, GL_QUADS, and GL_POLYGON are accepted.

    Parameter `first`

      Specifies the starting index in the enabled arrays.

    Parameter `count`

      Specifies the number of indices to be rendered.

    Throws

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_VALUE is generated if count is negative.

      GL_INVALID_OPERATION is generated if glDrawArrays is executed between the execution of glBegin and the corresponding glEnd.

    Method glDrawBuffer

      `void glDrawBuffer(int mode)`

    Description

      When colors are written to the frame buffer, they are written into the color buffers specified by glDrawBuffer. The specifications are as follows:

      GL_NONE | No color buffers are written.
      GL_FRONT_LEFT | Only the front left color buffer is written.
      GL_FRONT_RIGHT | Only the front right color buffer is written.
      GL_BACK_LEFT | Only the back left color buffer is written.
      GL_BACK_RIGHT | Only the back right color buffer is written.
      GL_FRONT | Only the front left and front right color buffers are written. If there is no front right color buffer, only the front left color buffer is written.
      GL_BACK | Only the back left and back right color buffers are written. If there is no back right color buffer, only the back left color buffer is written.
      GL_LEFT | Only the front left and back left color buffers are written. If there is no back left color buffer, only the front left color buffer is written.
      GL_RIGHT | Only the front right and back right color buffers are written. If there is no back right color buffer, only the front right color buffer is written.

      GL_FRONT_AND_BACK

      All the front and back color buffers (front left, front right, back left, back right) are written. If there are no back color buffers, only the front left and front right color buffers are written. If there are no right color buffers, only the front left and back left color buffers are written. If there are no right or back color buffers, only the front left color buffer is written.

      GL_AUXi | Only auxiliary color buffer i is written.

      If more than one color buffer is selected for drawing, then blending or logical operations are computed and applied independently for each color buffer and can produce different results in each buffer.

      Monoscopic contexts include only .I left buffers, and stereoscopic contexts include both .I left and .I right buffers. Likewise, single-buffered contexts include only .I front buffers, and double-buffered contexts include both .I front and .I back buffers. The context is selected at GL initialization.

    Parameter `mode`

      Specifies up to four color buffers to be drawn into. Symbolic constants GL_NONE, GL_FRONT_LEFT, GL_FRONT_RIGHT, GL_BACK_LEFT, GL_BACK_RIGHT, GL_FRONT, GL_BACK, GL_LEFT, GL_RIGHT, GL_FRONT_AND_BACK, and GL_AUXi, where i is between 0 and ``GL_AUX_BUFFERS'' -1, are accepted (GL_AUX_BUFFERS is not the upper limit; use glGet to query the number of available aux buffers.) The initial value is GL_FRONT for single-buffered contexts, and GL_BACK for double-buffered contexts.

    Throws

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_OPERATION is generated if none of the buffers indicated by mode exists.

      GL_INVALID_OPERATION is generated if glDrawBuffer is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glDrawPixels

      `void glDrawPixels(object|mapping(string:object) width, object|mapping(string:object) height, object|mapping(string:object) format, object|mapping(string:object) type, array(object|mapping(string:object)) pixels)`

    Description

      glDrawPixels reads pixel data from memory and writes it into the frame buffer relative to the current raster position. Use glRasterPos to set the current raster position; use glGet with argument GL_CURRENT_RASTER_POSITION to query the raster position.

      Several parameters define the encoding of pixel data in memory and control the processing of the pixel data before it is placed in the frame buffer. These parameters are set with four commands: glPixelStore, glPixelTransfer, glPixelMap, and glPixelZoom. This reference page describes the effects on glDrawPixels of many, but not all, of the parameters specified by these four commands.

      Data is read from pixels as a sequence of signed or unsigned bytes, signed or unsigned shorts, signed or unsigned integers, or single-precision floating-point values, depending on type. Each of these bytes, shorts, integers, or floating-point values is interpreted as one color or depth component, or one index, depending on format. Indices are always treated individually. Color components are treated as groups of one, two, three, or four values, again based on format. Both individual indices and groups of components are referred to as pixels. If type is GL_BITMAP, the data must be unsigned bytes, and format must be either GL_COLOR_INDEX or GL_STENCIL_INDEX. Each unsigned byte is treated as eight 1-bit pixels, with bit ordering determined by GL_UNPACK_LSB_FIRST (see glPixelStore).

      widthtimesheight pixels are read from memory, starting at location pixels. By default, these pixels are taken from adjacent memory locations, except that after all width pixels are read, the read pointer is advanced to the next four-byte boundary. The four-byte row alignment is specified by glPixelStore with argument GL_UNPACK_ALIGNMENT, and it can be set to one, two, four, or eight bytes. Other pixel store parameters specify different read pointer advancements, both before the first pixel is read and after all width pixels are read. See the

      glPixelStore reference page for details on these options.

      The widthtimesheight pixels that are read from memory are each operated on in the same way, based on the values of several parameters specified by glPixelTransfer and glPixelMap. The details of these operations, as well as the target buffer into which the pixels are drawn, are specific to the format of the pixels, as specified by format. format can assume one of eleven symbolic values:

      GL_COLOR_INDEX

      Each pixel is a single value, a color index. It is converted to fixed-point format, with an unspecified number of bits to the right of the binary point, regardless of the memory data type. Floating-point values convert to true fixed-point values. Signed and unsigned integer data is converted with all fraction bits set to 0. Bitmap data convert to either 0 or 1. Each fixed-point index is then shifted left by GL_INDEX_SHIFT bits and added to GL_INDEX_OFFSET. If GL_INDEX_SHIFT is negative, the shift is to the right. In either case, zero bits fill otherwise unspecified bit locations in the result. If the GL is in RGBA mode, the resulting index is converted to an RGBA pixel with the help of the GL_PIXEL_MAP_I_TO_R, GL_PIXEL_MAP_I_TO_G, GL_PIXEL_MAP_I_TO_B, and GL_PIXEL_MAP_I_TO_A tables. If the GL is in color index mode, and if GL_MAP_COLOR is true, the index is replaced with the value that it references in lookup table GL_PIXEL_MAP_I_TO_I. Whether the lookup replacement of the index is done or not, the integer part of the index is then ANDed with 2 sup b -1, where b is the number of bits in a color index buffer. The GL then converts the resulting indices or RGBA colors to fragments by attaching the current raster position z coordinate and texture coordinates to each pixel, then assigning x and y window coordinates to the nth fragment such that .sp .RS .ce x sub n ~=~ x sub r ~+~ n ~ roman mod ~ "width" .sp .ce y sub n ~=~ y sub r ~+~ \(lf ~ n / "width" ~ \(rf .ce 0 .sp .RE where (x sub r , y sub r) is the current raster position. These pixel fragments are then treated just like the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog, and all the fragment operations are applied before the fragments are written to the frame buffer.

      GL_STENCIL_INDEX

      Each pixel is a single value, a stencil index. It is converted to fixed-point format, with an unspecified number of bits to the right of the binary point, regardless of the memory data type. Floating-point values convert to true fixed-point values. Signed and unsigned integer data is converted with all fraction bits set to 0. Bitmap data convert to either 0 or 1. Each fixed-point index is then shifted left by GL_INDEX_SHIFT bits, and added to GL_INDEX_OFFSET. If GL_INDEX_SHIFT is negative, the shift is to the right. In either case, zero bits fill otherwise unspecified bit locations in the result. If GL_MAP_STENCIL is true, the index is replaced with the value that it references in lookup table GL_PIXEL_MAP_S_TO_S. Whether the lookup replacement of the index is done or not, the integer part of the index is then ANDed with 2 sup b -1, where b is the number of bits in the stencil buffer. The resulting stencil indices are then written to the stencil buffer such that the nth index is written to location

      .RS .ce x sub n ~=~ x sub r ~+~ n ~ roman mod ~ "width" .sp .ce y sub n ~=~ y sub r ~+~ \(lf ~ n / "width" ~ \(rf .fi .sp .RE

      where (x sub r , y sub r) is the current raster position. Only the pixel ownership test, the scissor test, and the stencil writemask affect these write operations.

      GL_DEPTH_COMPONENT

      Each pixel is a single-depth component. Floating-point data is converted directly to an internal floating-point format with unspecified precision. Signed integer data is mapped linearly to the internal floating-point format such that the most positive representable integer value maps to 1.0, and the most negative representable value maps to -1.0. Unsigned integer data is mapped similarly: the largest integer value maps to 1.0, and 0 maps to 0.0. The resulting floating-point depth value is then multiplied by by GL_DEPTH_SCALE and added to GL_DEPTH_BIAS. The result is clamped to the range [0,1]. The GL then converts the resulting depth components to fragments by attaching the current raster position color or color index and texture coordinates to each pixel, then assigning x and y window coordinates to the nth fragment such that

      .RS .ce x sub n ~=~ x sub r ~+~ n ~ roman mod ~ "width" .sp .ce y sub n ~=~ y sub r ~+~ \(lf ~ n / "width" ~ \(rf .ce 0 .sp .RE

      where (x sub r , y sub r) is the current raster position. These pixel fragments are then treated just like the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog, and all the fragment operations are applied before the fragments are written to the frame buffer.

      GL_RGBA

      Each pixel is a four-component group: for GL_RGBA, the red component is first, followed by green, followed by blue, followed by alpha. Floating-point values are converted directly to an internal floating-point format with unspecified precision. Signed integer values are mapped linearly to the internal floating-point format such that the most positive representable integer value maps to 1.0, and the most negative representable value maps to -1.0. (Note that this mapping does not convert 0 precisely to 0.0.) Unsigned integer data is mapped similarly: the largest integer value maps to 1.0, and 0 maps to 0.0. The resulting floating-point color values are then multiplied by GL_c_SCALE and added to GL_c_BIAS, where c is RED, GREEN, BLUE, and ALPHA for the respective color components. The results are clamped to the range [0,1]. If GL_MAP_COLOR is true, each color component is scaled by the size of lookup table GL_PIXEL_MAP_c_TO_c, then replaced by the value that it references in that table. c is R, G, B, or A respectively. The GL then converts the resulting RGBA colors to fragments by attaching the current raster position z coordinate and texture coordinates to each pixel, then assigning x and y window coordinates to the nth fragment such that

      .RS .ce x sub n ~=~ x sub r ~+~ n ~ roman mod ~ "width" .sp .ce y sub n ~=~ y sub r ~+~ \(lf ~ n / "width" ~ \(rf .ce 0 .sp .RE

      where (x sub r , y sub r) is the current raster position. These pixel fragments are then treated just like the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog, and all the fragment operations are applied before the fragments are written to the frame buffer.

      GL_RED | Each pixel is a single red component. This component is converted to the internal floating-point format in the same way the red component of an RGBA pixel is. It is then converted to an RGBA pixel with green and blue set to 0, and alpha set to 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.
      GL_GREEN | Each pixel is a single green component. This component is converted to the internal floating-point format in the same way the green component of an RGBA pixel is. It is then converted to an RGBA pixel with red and blue set to 0, and alpha set to 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.
      GL_BLUE | Each pixel is a single blue component. This component is converted to the internal floating-point format in the same way the blue component of an RGBA pixel is. It is then converted to an RGBA pixel with red and green set to 0, and alpha set to 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.
      GL_ALPHA | Each pixel is a single alpha component. This component is converted to the internal floating-point format in the same way the alpha component of an RGBA pixel is. It is then converted to an RGBA pixel with red, green, and blue set to 0. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.
      GL_RGB | Each pixel is a three-component group: red first, followed by green, followed by blue. Each component is converted to the internal floating-point format in the same way the red, green, and blue components of an RGBA pixel are. The color triple is converted to an RGBA pixel with alpha set to 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.
      GL_LUMINANCE | Each pixel is a single luminance component. This component is converted to the internal floating-point format in the same way the red component of an RGBA pixel is. It is then converted to an RGBA pixel with red, green, and blue set to the converted luminance value, and alpha set to 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.

      GL_LUMINANCE_ALPHA

      Each pixel is a two-component group: luminance first, followed by alpha. The two components are converted to the internal floating-point format in the same way the red component of an RGBA pixel is. They are then converted to an RGBA pixel with red, green, and blue set to the converted luminance value, and alpha set to the converted alpha value. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.

      The following table summarizes the meaning of the valid constants for the type parameter: .sp 2 .TS center box ; ci | ci c | c . type corresponding type = GL_UNSIGNED_BYTE unsigned 8-bit integer GL_BYTE signed 8-bit integer GL_BITMAP single bits in unsigned 8-bit integers GL_UNSIGNED_SHORT unsigned 16-bit integer GL_SHORT signed 16-bit integer GL_UNSIGNED_INT unsigned 32-bit integer GL_INT 32-bit integer GL_FLOAT single-precision floating-point .TE .sp

      The rasterization described so far assumes pixel zoom factors of 1. If

      glPixelZoom is used to change the x and y pixel zoom factors, pixels are converted to fragments as follows. If (x sub r, y sub r) is the current raster position, and a given pixel is in the nth column and mth row of the pixel rectangle, then fragments are generated for pixels whose centers are in the rectangle with corners at .sp .RS .ce (x sub r + zoom sub x n, y sub r + zoom sub y m) .sp .ce (x sub r + zoom sub x (n + 1), y sub r + zoom sub y ( m + 1 )) .ce 0 .sp .RE

      where zoom sub x is the value of GL_ZOOM_X and zoom sub y is the value of GL_ZOOM_Y.

    Parameter `width`

      Specify the dimensions of the pixel rectangle to be written into the frame buffer.

    Parameter `format`

      Specifies the format of the pixel data. Symbolic constants GL_COLOR_INDEX, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT, GL_RGBA, GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_RGB, GL_LUMINANCE, and GL_LUMINANCE_ALPHA are accepted.

    Parameter `type`

      Specifies the data type for pixels. Symbolic constants GL_UNSIGNED_BYTE, GL_BYTE, GL_BITMAP, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, and GL_FLOAT are accepted.

    Parameter `pixels`

      Specifies a pointer to the pixel data.

    Throws

      GL_INVALID_VALUE is generated if either width or height is negative.

      GL_INVALID_ENUM is generated if format or type is not one of the accepted values.

      GL_INVALID_OPERATION is generated if format is GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_RGB, GL_RGBA, GL_LUMINANCE, or GL_LUMINANCE_ALPHA, and the GL is in color index mode.

      GL_INVALID_ENUM is generated if type is GL_BITMAP and format is not either GL_COLOR_INDEX or GL_STENCIL_INDEX.

      GL_INVALID_OPERATION is generated if format is GL_STENCIL_INDEX and there is no stencil buffer.

      GL_INVALID_OPERATION is generated if glDrawPixels is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glEdgeFlag

      `void glEdgeFlag(int flag)`

    Description

      Each vertex of a polygon, separate triangle, or separate quadrilateral specified between a glBegin/glEnd pair is marked as the start of either a boundary or nonboundary edge. If the current edge flag is true when the vertex is specified, the vertex is marked as the start of a boundary edge. Otherwise, the vertex is marked as the start of a nonboundary edge. glEdgeFlag sets the edge flag bit to GL_TRUE if flag is GL_TRUE, and to GL_FALSE otherwise.

      The vertices of connected triangles and connected quadrilaterals are always marked as boundary, regardless of the value of the edge flag.

      Boundary and nonboundary edge flags on vertices are significant only if GL_POLYGON_MODE is set to GL_POINT or GL_LINE. See glPolygonMode.

    Parameter `flag`

      Specifies the current edge flag value, either GL_TRUE or GL_FALSE. The initial value is GL_TRUE.

    Parameter `flag`

      Specifies a pointer to an array that contains a single boolean element, which replaces the current edge flag value.

    Method glEnable

      `void glEnable(int cap)`

    Description

      glEnable and glDisable enable and disable various capabilities. Use glIsEnabled or glGet to determine the current setting of any capability. The initial value for each capability with the exception of GL_DITHER is GL_FALSE. The initial value for GL_DITHER is GL_TRUE.

      Both glEnable and glDisable take a single argument, cap, which can assume one of the following values:

      GL_ALPHA_TEST | If enabled, do alpha testing. See glAlphaFunc.
      GL_AUTO_NORMAL | If enabled, generate normal vectors when either GL_MAP2_VERTEX_3 or GL_MAP2_VERTEX_4 is used to generate vertices. See glMap2.
      GL_BLEND | If enabled, blend the incoming RGBA color values with the values in the color buffers. See glBlendFunc.
      GL_CLIP_PLANE i | If enabled, clip geometry against user-defined clipping plane i. See glClipPlane.
      GL_COLOR_LOGIC_OP | If enabled, apply the currently selected logical operation to the incoming RGBA color and color buffer values. See glLogicOp.
      GL_COLOR_MATERIAL | If enabled, have one or more material parameters track the current color. See glColorMaterial.
      GL_CULL_FACE | If enabled, cull polygons based on their winding in window coordinates. See glCullFace.
      GL_DEPTH_TEST | If enabled, do depth comparisons and update the depth buffer. Note that even if the depth buffer exists and the depth mask is non-zero, the depth buffer is not updated if the depth test is disabled. See glDepthFunc and glDepthRange.
      GL_DITHER | If enabled, dither color components or indices before they are written to the color buffer.
      GL_FOG | If enabled, blend a fog color into the posttexturing color. See glFog.
      GL_INDEX_LOGIC_OP | If enabled, apply the currently selected logical operation to the incoming index and color buffer indices. See glLogicOp.
      GL_LIGHT i | If enabled, include light i in the evaluation of the lighting equation. See glLightModel and glLight.
      GL_LIGHTING | If enabled, use the current lighting parameters to compute the vertex color or index. Otherwise, simply associate the current color or index with each vertex. See glMaterial, glLightModel, and glLight.
      GL_LINE_SMOOTH | If enabled, draw lines with correct filtering. Otherwise, draw aliased lines. See glLineWidth.
      GL_LINE_STIPPLE | If enabled, use the current line stipple pattern when drawing lines. See glLineStipple.
      GL_MAP1_COLOR_4 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate RGBA values. See glMap1.
      GL_MAP1_INDEX | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate color indices. See glMap1.
      GL_MAP1_NORMAL | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate normals. See glMap1.
      GL_MAP1_TEXTURE_COORD_1 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s texture coordinates. See glMap1.
      GL_MAP1_TEXTURE_COORD_2 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s and t texture coordinates. See glMap1.
      GL_MAP1_TEXTURE_COORD_3 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s, t, and r texture coordinates. See glMap1.
      GL_MAP1_TEXTURE_COORD_4 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate s, t, r, and q texture coordinates. See glMap1.
      GL_MAP1_VERTEX_3 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate x, y, and z vertex coordinates. See glMap1.
      GL_MAP1_VERTEX_4 | If enabled, calls to glEvalCoord, glEvalMesh1, and glEvalPoint generate homogeneous x, y, z, and w vertex coordinates. See glMap1.
      GL_MAP2_COLOR_4 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate RGBA values. See glMap2.
      GL_MAP2_INDEX | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate color indices. See glMap2.
      GL_MAP2_NORMAL | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate normals. See glMap2.
      GL_MAP2_TEXTURE_COORD_1 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s texture coordinates. See glMap2.
      GL_MAP2_TEXTURE_COORD_2 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s and t texture coordinates. See glMap2.
      GL_MAP2_TEXTURE_COORD_3 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s, t, and r texture coordinates. See glMap2.
      GL_MAP2_TEXTURE_COORD_4 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate s, t, r, and q texture coordinates. See glMap2.
      GL_MAP2_VERTEX_3 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate x, y, and z vertex coordinates. See glMap2.
      GL_MAP2_VERTEX_4 | If enabled, calls to glEvalCoord, glEvalMesh2, and glEvalPoint generate homogeneous x, y, z, and w vertex coordinates. See glMap2.
      GL_NORMALIZE | If enabled, normal vectors specified with glNormal are scaled to unit length after transformation. See glNormal.
      GL_POINT_SMOOTH | If enabled, draw points with proper filtering. Otherwise, draw aliased points. See glPointSize.
      GL_POLYGON_OFFSET_FILL | If enabled, and if the polygon is rendered in GL_FILL mode, an offset is added to depth values of a polygon's fragments before the depth comparison is performed. See glPolygonOffset.
      GL_POLYGON_OFFSET_LINE | If enabled, and if the polygon is rendered in GL_LINE mode, an offset is added to depth values of a polygon's fragments before the depth comparison is performed. See glPolygonOffset.
      GL_POLYGON_OFFSET_POINT | If enabled, an offset is added to depth values of a polygon's fragments before the depth comparison is performed, if the polygon is rendered in GL_POINT mode. See glPolygonOffset.
      GL_POLYGON_SMOOTH | If enabled, draw polygons with proper filtering. Otherwise, draw aliased polygons. For correct anti-aliased polygons, an alpha buffer is needed and the polygons must be sorted front to back.
      GL_POLYGON_STIPPLE | If enabled, use the current polygon stipple pattern when rendering polygons. See glPolygonStipple.
      GL_SCISSOR_TEST | If enabled, discard fragments that are outside the scissor rectangle. See glScissor.
      GL_STENCIL_TEST | If enabled, do stencil testing and update the stencil buffer. See glStencilFunc and glStencilOp.
      GL_TEXTURE_1D | If enabled, one-dimensional texturing is performed (unless two-dimensional texturing is also enabled). See glTexImage1D.
      GL_TEXTURE_2D | If enabled, two-dimensional texturing is performed. See glTexImage2D.
      GL_TEXTURE_GEN_Q | If enabled, the q texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current q texture coordinate is used. See glTexGen.
      GL_TEXTURE_GEN_R | If enabled, the r texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current r texture coordinate is used. See glTexGen.
      GL_TEXTURE_GEN_S | If enabled, the s texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current s texture coordinate is used. See glTexGen.
      GL_TEXTURE_GEN_T | If enabled, the t texture coordinate is computed using the texture generation function defined with glTexGen. Otherwise, the current t texture coordinate is used. See glTexGen.

    Parameter `cap`

      Specifies a symbolic constant indicating a GL capability.

    Parameter `cap`

      Specifies a symbolic constant indicating a GL capability.

    Throws

      GL_INVALID_ENUM is generated if cap is not one of the values listed previously.

      GL_INVALID_OPERATION is generated if glEnable or glDisable is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glEnableClientState

      `void glEnableClientState(int cap)`

    Description

      glEnableClientState and glDisableClientState enable or disable individual client-side capabilities. By default, all client-side capabilities are disabled. Both glEnableClientState and glDisableClientState take a single argument, cap, which can assume one of the following values:

      GL_COLOR_ARRAY | If enabled, the color array is enabled for writing and used during rendering when glDrawArrays or glDrawElement is called. See glColorPointer.
      GL_EDGE_FLAG_ARRAY | If enabled, the edge flag array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glEdgeFlagPointer.
      GL_INDEX_ARRAY | If enabled, the index array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glIndexPointer.
      GL_NORMAL_ARRAY | If enabled, the normal array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glNormalPointer.
      GL_TEXTURE_COORD_ARRAY | If enabled, the texture coordinate array is enabled for writing and used for rendering when glDrawArrays or glDrawElements is called. See glTexCoordPointer.
      GL_VERTEX_ARRAY | If enabled, the vertex array is enabled for writing and used during rendering when glDrawArrays or glDrawElements is called. See glVertexPointer.

    Parameter `cap`

      Specifies the capability to enable. Symbolic constants GL_COLOR_ARRAY, GL_EDGE_FLAG_ARRAY, GL_INDEX_ARRAY, GL_NORMAL_ARRAY, GL_TEXTURE_COORD_ARRAY, and GL_VERTEX_ARRAY are accepted.

    Parameter `cap`

      Specifies the capability to disable.

    Throws

      GL_INVALID_ENUM is generated if cap is not an accepted value.

      glEnableClientState is not allowed between the execution of glBegin and the corresponding glEnd, but an error may or may not be generated. If no error is generated, the behavior is undefined.

    Method glEnd

      `void glEnd()`

    Description

      glBegin and glEnd delimit the vertices that define a primitive or a group of like primitives. glBegin accepts a single argument that specifies in which of ten ways the vertices are interpreted. Taking n as an integer count starting at one, and N as the total number of vertices specified, the interpretations are as follows:

      GL_POINTS | Treats each vertex as a single point. Vertex n defines point n. N points are drawn.
      GL_LINES | Treats each pair of vertices as an independent line segment. Vertices 2n-1 and 2n define line n. N/2 lines are drawn.
      GL_LINE_STRIP | Draws a connected group of line segments from the first vertex to the last. Vertices n and n+1 define line n. N-1 lines are drawn.
      GL_LINE_LOOP | Draws a connected group of line segments from the first vertex to the last, then back to the first. Vertices n and n+1 define line n. The last line, however, is defined by vertices N and 1. N lines are drawn.
      GL_TRIANGLES | Treats each triplet of vertices as an independent triangle. Vertices 3n-2, 3n-1, and 3n define triangle n. N/3 triangles are drawn.
      GL_TRIANGLE_STRIP | Draws a connected group of triangles. One triangle is defined for each vertex presented after the first two vertices. For odd n, vertices n, n+1, and n+2 define triangle n. For even n, vertices n+1, n, and n+2 define triangle n. N-2 triangles are drawn.
      GL_TRIANGLE_FAN | Draws a connected group of triangles. One triangle is defined for each vertex presented after the first two vertices. Vertices 1, n+1, and n+2 define triangle n. N-2 triangles are drawn.
      GL_QUADS | Treats each group of four vertices as an independent quadrilateral. Vertices 4n-3, 4n-2, 4n-1, and 4n define quadrilateral n. N/4 quadrilaterals are drawn.
      GL_QUAD_STRIP | Draws a connected group of quadrilaterals. One quadrilateral is defined for each pair of vertices presented after the first pair. Vertices 2n-1, 2n, 2n+2, and 2n+1 define quadrilateral n. N/2-1 quadrilaterals are drawn. Note that the order in which vertices are used to construct a quadrilateral from strip data is different from that used with independent data.
      GL_POLYGON | Draws a single, convex polygon. Vertices 1 through N define this polygon.

      Only a subset of GL commands can be used between glBegin and glEnd. The commands are glVertex, glColor, glIndex, glNormal, glTexCoord, glEvalCoord, glEvalPoint, glArrayElement, glMaterial, and glEdgeFlag. Also, it is acceptable to use glCallList or glCallLists to execute display lists that include only the preceding commands. If any other GL command is executed between glBegin and glEnd, the error flag is set and the command is ignored.

      Regardless of the value chosen for mode, there is no limit to the number of vertices that can be defined between glBegin and glEnd. Lines, triangles, quadrilaterals, and polygons that are incompletely specified are not drawn. Incomplete specification results when either too few vertices are provided to specify even a single primitive or when an incorrect multiple of vertices is specified. The incomplete primitive is ignored; the rest are drawn.

      The minimum specification of vertices for each primitive is as follows: 1 for a point, 2 for a line, 3 for a triangle, 4 for a quadrilateral, and 3 for a polygon. Modes that require a certain multiple of vertices are GL_LINES (2), GL_TRIANGLES (3), GL_QUADS (4), and GL_QUAD_STRIP (2).

    Parameter `mode`

      Specifies the primitive or primitives that will be created from vertices presented between glBegin and the subsequent glEnd. Ten symbolic constants are accepted: GL_POINTS, GL_LINES, GL_LINE_STRIP, GL_LINE_LOOP, GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS, GL_QUAD_STRIP, and GL_POLYGON.

    Throws

      GL_INVALID_ENUM is generated if mode is set to an unaccepted value.

      GL_INVALID_OPERATION is generated if glBegin is executed between a glBegin and the corresponding execution of glEnd.

      GL_INVALID_OPERATION is generated if glEnd is executed without being preceded by a glBegin.

      GL_INVALID_OPERATION is generated if a command other than glVertex, glColor, glIndex, glNormal, glTexCoord, glEvalCoord, glEvalPoint, glArrayElement, glMaterial, glEdgeFlag, glCallList, or glCallLists is executed between the execution of glBegin and the corresponding execution glEnd.

      Execution of glEnableClientState, glDisableClientState, glEdgeFlagPointer, glTexCoordPointer, glColorPointer, glIndexPointer, glNormalPointer,

      glVertexPointer, glInterleavedArrays, or glPixelStore is not allowed after a call to glBegin and before the corresponding call to glEnd, but an error may or may not be generated.

    Method glEndList

      `void glEndList()`

    Description

      Display lists are groups of GL commands that have been stored for subsequent execution. Display lists are created with glNewList. All subsequent commands are placed in the display list, in the order issued, until glEndList is called.

      glNewList has two arguments. The first argument, list, is a positive integer that becomes the unique name for the display list. Names can be created and reserved with glGenLists and tested for uniqueness with glIsList. The second argument, mode, is a symbolic constant that can assume one of two values:

      GL_COMPILE | Commands are merely compiled.
      GL_COMPILE_AND_EXECUTE | Commands are executed as they are compiled into the display list.

      Certain commands are not compiled into the display list but are executed immediately, regardless of the display-list mode. These commands are glColorPointer, glDeleteLists, glDisableClientState, glEdgeFlagPointer, glEnableClientState, glFeedbackBuffer, glFinish, glFlush, glGenLists, glIndexPointer, glInterleavedArrays, glIsEnabled, glIsList, glNormalPointer, glPopClientAttrib, glPixelStore, glPushClientAttrib, glReadPixels, glRenderMode, glSelectBuffer, glTexCoordPointer, glVertexPointer, and all of the glGet commands.

      Similarly, glTexImage2D and glTexImage1D are executed immediately and not compiled into the display list when their first argument is GL_PROXY_TEXTURE_2D or GL_PROXY_TEXTURE_1D, respectively.

      When glEndList is encountered, the display-list definition is completed by associating the list with the unique name list (specified in the glNewList command). If a display list with name list already exists, it is replaced only when glEndList is called.

    Parameter `list`

      Specifies the display-list name.

    Parameter `mode`

      Specifies the compilation mode, which can be GL_COMPILE or GL_COMPILE_AND_EXECUTE.

    Throws

      GL_INVALID_VALUE is generated if list is 0.

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glEndList is called without a preceding glNewList, or if glNewList is called while a display list is being defined.

      GL_INVALID_OPERATION is generated if glNewList or glEndList is executed between the execution of glBegin and the corresponding execution of glEnd.

      GL_OUT_OF_MEMORY is generated if there is insufficient memory to compile the display list. If the GL version is 1.1 or greater, no change is made to the previous contents of the display list, if any, and no other change is made to the GL state. (It is as if no attempt had been made to create the new display list.)

    Method glEvalCoord

      `void glEvalCoord(float|int|array(float|int) u, float|int|void v)`

    Description

      glEvalCoord evaluates enabled one-dimensional maps at argument u or two-dimensional maps using two domain values, u and v. To define a map, call glMap1 and glMap2; to enable and disable it, call glEnable and glDisable.

      When one of the glEvalCoord commands is issued, all currently enabled maps of the indicated dimension are evaluated. Then, for each enabled map, it is as if the corresponding GL command had been issued with the computed value. That is, if GL_MAP1_INDEX or GL_MAP2_INDEX is enabled, a glIndex command is simulated. If GL_MAP1_COLOR_4 or GL_MAP2_COLOR_4 is enabled, a glColor command is simulated. If GL_MAP1_NORMAL or GL_MAP2_NORMAL is enabled, a normal vector is produced, and if any of GL_MAP1_TEXTURE_COORD_1, GL_MAP1_TEXTURE_COORD_2, GL_MAP1_TEXTURE_COORD_3, GL_MAP1_TEXTURE_COORD_4, GL_MAP2_TEXTURE_COORD_1, GL_MAP2_TEXTURE_COORD_2, GL_MAP2_TEXTURE_COORD_3, or GL_MAP2_TEXTURE_COORD_4 is enabled, then an appropriate glTexCoord command is simulated.

      For color, color index, normal, and texture coordinates the GL uses evaluated values instead of current values for those evaluations that are enabled, and current values otherwise, However, the evaluated values do not update the current values. Thus, if glVertex commands are interspersed with glEvalCoord commands, the color, normal, and texture coordinates associated with the glVertex commands are not affected by the values generated by the glEvalCoord commands, but only by the most recent glColor, glIndex, glNormal, and glTexCoord commands.

      No commands are issued for maps that are not enabled. If more than one texture evaluation is enabled for a particular dimension (for example, GL_MAP2_TEXTURE_COORD_1 and GL_MAP2_TEXTURE_COORD_2), then only the evaluation of the map that produces the larger number of coordinates (in this case, GL_MAP2_TEXTURE_COORD_2) is carried out. GL_MAP1_VERTEX_4 overrides GL_MAP1_VERTEX_3, and GL_MAP2_VERTEX_4 overrides GL_MAP2_VERTEX_3, in the same manner. If neither a three- nor a four-component vertex map is enabled for the specified dimension, the glEvalCoord command is ignored.

      If you have enabled automatic normal generation, by calling glEnable with argument GL_AUTO_NORMAL, glEvalCoord generates surface normals analytically, regardless of the contents or enabling of the GL_MAP2_NORMAL map. Let .sp .nf Pp Pp m = -- X -- Pu Pv .sp .fi

      Then the generated normal n is

      n = m over ~ over { || m || }

      .sp

      If automatic normal generation is disabled, the corresponding normal map GL_MAP2_NORMAL, if enabled, is used to produce a normal. If neither automatic normal generation nor a normal map is enabled, no normal is generated for glEvalCoord commands.

    Parameter `u`

      Specifies a value that is the domain coordinate u to the basis function defined in a previous glMap1 or glMap2 command.

    Parameter `v`

      Specifies a value that is the domain coordinate v to the basis function defined in a previous glMap2 command.

    Parameter `u`

      Specifies a pointer to an array containing either one or two domain coordinates. The first coordinate is u. The second coordinate is v.

    Method glEvalPoint

      `void glEvalPoint(int|array(int) i, int|void j)`

    Description

      glMapGrid and glEvalMesh are used in tandem to efficiently generate and evaluate a series of evenly spaced map domain values. glEvalPoint can be used to evaluate a single grid point in the same gridspace that is traversed by glEvalMesh. Calling glEvalPoint is equivalent to calling .nf

      glEvalCoord1(i . DELTA u + u ); 1 where

      DELTA u = (u - u ) / n 2 1

      and n, u , and u 1 2

      .fi are the arguments to the most recent glMapGrid1 command. The one absolute numeric requirement is that if i~=~n, then the value computed from .nf i . DELTA u + u is exactly u . 1 2

      .fi

      In the two-dimensional case, glEvalPoint, let .nf DELTA u = (u - u )/n 2 1

      DELTA v = (v - v )/m 2 1

      where n, u , u , m, v , and v 1 2 1 2

      .fi are the arguments to the most recent glMapGrid2 command. Then the glEvalPoint command is equivalent to calling .nf

      glEvalCoord2(i . DELTA u + u , j . DELTA v + v ); 1 1

      .fi The only absolute numeric requirements are that if i~=~n, then the value computed from .nf

      i . DELTA u + u is exactly u , 1 2 .fi and if j~=~m, then the value computed from .nf

      j cdot DELTA v + v is exactly v . 1 2

    Parameter `i`

      Specifies the integer value for grid domain variable i.

    Parameter `j`

      Specifies the integer value for grid domain variable j (glEvalPoint only).

    Method glFinish

      `void glFinish()`

    Description

      glFinish does not return until the effects of all previously called GL commands are complete. Such effects include all changes to GL state, all changes to connection state, and all changes to the frame buffer contents.

    Throws

      GL_INVALID_OPERATION is generated if glFinish is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glFlush

      `void glFlush()`

    Description

      Different GL implementations buffer commands in several different locations, including network buffers and the graphics accelerator itself. glFlush empties all of these buffers, causing all issued commands to be executed as quickly as they are accepted by the actual rendering engine. Though this execution may not be completed in any particular time period, it does complete in finite time.

      Because any GL program might be executed over a network, or on an accelerator that buffers commands, all programs should call glFlush whenever they count on having all of their previously issued commands completed. For example, call glFlush before waiting for user input that depends on the generated image.

    Throws

      GL_INVALID_OPERATION is generated if glFlush is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glFog

      `void glFog(int pname, float|int|array(float|int) param)`

    Description

      Fog is initially disabled. While enabled, fog affects rasterized geometry, bitmaps, and pixel blocks, but not buffer clear operations. To enable and disable fog, call glEnable and glDisable with argument GL_FOG.

      glFog assigns the value or values in params to the fog parameter specified by pname. The following values are accepted for pname:

      GL_FOG_MODE | params is a single integer or floating-point value that specifies the equation to be used to compute the fog blend factor, f. Three symbolic constants are accepted: GL_LINEAR, GL_EXP, and GL_EXP2. The equations corresponding to these symbolic constants are defined below. The initial fog mode is GL_EXP.
      GL_FOG_DENSITY | params is a single integer or floating-point value that specifies density, the fog density used in both exponential fog equations. Only nonnegative densities are accepted. The initial fog density is 1.
      GL_FOG_START | params is a single integer or floating-point value that specifies start, the near distance used in the linear fog equation. The initial near distance is 0.
      GL_FOG_END | params is a single integer or floating-point value that specifies end, the far distance used in the linear fog equation. The initial far distance is 1.
      GL_FOG_INDEX | params is a single integer or floating-point value that specifies i sub f, the fog color index. The initial fog index is 0.

      GL_FOG_COLOR

      params contains four integer or floating-point values that specify C sub f, the fog color. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. After conversion, all color components are clamped to the range [0,1]. The initial fog color is (0, 0, 0, 0).

      Fog blends a fog color with each rasterized pixel fragment's posttexturing color using a blending factor f. Factor f is computed in one of three ways, depending on the fog mode. Let z be the distance in eye coordinates from the origin to the fragment being fogged. The equation for GL_LINEAR fog is .ce

      .EQ f ~=~ {end ~-~ z} over {end ~-~ start} .EN

      .RE

      The equation for GL_EXP fog is .ce

      .EQ f ~=~ e ** (-(density ~cdot~ z)) .EN

      The equation for GL_EXP2 fog is .ce

      .EQ f ~=~ e ** (-(density ~cdot~ z) ** 2) .EN

      Regardless of the fog mode, f is clamped to the range [0,1] after it is computed. Then, if the GL is in RGBA color mode, the fragment's color C sub r is replaced by .sp .ce .EQ {C sub r} prime ~=~ f C sub r + (1 - f) C sub f .EN

      In color index mode, the fragment's color index i sub r is replaced by .sp .ce .EQ {i sub r} prime ~=~ i sub r + (1 - f) i sub f .EN

    Parameter `pname`

      Specifies a single-valued fog parameter. GL_FOG_MODE, GL_FOG_DENSITY, GL_FOG_START, GL_FOG_END, and GL_FOG_INDEX are accepted.

    Parameter `param`

      Specifies the value that pname will be set to.

    Parameter `pname`

      Specifies a fog parameter. GL_FOG_MODE, GL_FOG_DENSITY, GL_FOG_START, GL_FOG_END, GL_FOG_INDEX, and GL_FOG_COLOR are accepted.

    Parameter `params`

      Specifies the value or values to be assigned to pname. GL_FOG_COLOR requires an array of four values. All other parameters accept an array containing only a single value.

    Throws

      GL_INVALID_ENUM is generated if pname is not an accepted value, or if pname is GL_FOG_MODE and params is not an accepted value.

      GL_INVALID_VALUE is generated if pname is GL_FOG_DENSITY, and params is negative.

      GL_INVALID_OPERATION is generated if glFog is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glFrontFace

      `void glFrontFace(int mode)`

    Description

      In a scene composed entirely of opaque closed surfaces, back-facing polygons are never visible. Eliminating these invisible polygons has the obvious benefit of speeding up the rendering of the image. To enable and disable elimination of back-facing polygons, call glEnable and glDisable with argument GL_CULL_FACE.

      The projection of a polygon to window coordinates is said to have clockwise winding if an imaginary object following the path from its first vertex, its second vertex, and so on, to its last vertex, and finally back to its first vertex, moves in a clockwise direction about the interior of the polygon. The polygon's winding is said to be counterclockwise if the imaginary object following the same path moves in a counterclockwise direction about the interior of the polygon. glFrontFace specifies whether polygons with clockwise winding in window coordinates, or counterclockwise winding in window coordinates, are taken to be front-facing. Passing GL_CCW to mode selects counterclockwise polygons as front-facing; GL_CW selects clockwise polygons as front-facing. By default, counterclockwise polygons are taken to be front-facing.

    Parameter `mode`

      Specifies the orientation of front-facing polygons. GL_CW and GL_CCW are accepted. The initial value is GL_CCW.

    Throws

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glFrontFace is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glFrustum

      `void glFrustum(float left, float right, float bottom, float top, float zNear, float zFar)`

    Description

      glFrustum describes a perspective matrix that produces a perspective projection. The current matrix (see glMatrixMode) is multiplied by this matrix and the result replaces the current matrix, as if glMultMatrix were called with the following matrix as its argument:

      .sp 5 .ce .EQ down 130 {left ( ~~ matrix { ccol { {{2 ~ "zNear"} over {"right" - "left"}} above 0 above 0 above 0 } ccol { 0 above {{2 ~ "zNear"} over {"top" - "bottom"}} ~ above 0 above 0 } ccol { A ~~~~ above B ~~~~ above C ~~~~ above -1 ~~~~} ccol { 0 above 0 above D above 0} } ~~~ right )} .EN .sp .ce .EQ down 130 {A ~=~ {"right" + "left"} over {"right" - "left"}} .EN .sp .ce .EQ down 130 {B ~=~ {"top" + "bottom"} over {"top" - "bottom"}} .EN .sp .ce .EQ down 130 {C ~=~ -{{"zFar" + "zNear"} over {"zFar" - "zNear"}}} .EN .sp .ce .EQ down 130 {D ~=~ -{{2 ~ "zFar" ~ "zNear"} over {"zFar" - "zNear"}}} .EN .sp

      Typically, the matrix mode is GL_PROJECTION, and (left, bottom, -zNear) and (right, top, -zNear) specify the points on the near clipping plane that are mapped to the lower left and upper right corners of the window, assuming that the eye is located at (0, 0, 0). -zFar specifies the location of the far clipping plane. Both zNear and zFar must be positive.

      Use glPushMatrix and glPopMatrix to save and restore the current matrix stack.

    Parameter `left`

      Specify the coordinates for the left and right vertical clipping planes.

    Parameter `bottom`

      Specify the coordinates for the bottom and top horizontal clipping planes.

    Parameter `zNear`

      Specify the distances to the near and far depth clipping planes. Both distances must be positive.

    Throws

      GL_INVALID_VALUE is generated if zNear or zFar is not positive.

      GL_INVALID_OPERATION is generated if glFrustum is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glGenLists

      `int glGenLists(int range)`

    Description

      glGenLists has one argument, range. It returns an integer n such that range contiguous empty display lists, named n, n+1, ..., n+range -1, are created. If range is 0, if there is no group of range contiguous names available, or if any error is generated, no display lists are generated, and 0 is returned.

    Parameter `range`

      Specifies the number of contiguous empty display lists to be generated.

    Throws

      GL_INVALID_VALUE is generated if range is negative.

      GL_INVALID_OPERATION is generated if glGenLists is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glGetError

      `int glGetError()`

    Description

      glGetError returns the value of the error flag. Each detectable error is assigned a numeric code and symbolic name. When an error occurs, the error flag is set to the appropriate error code value. No other errors are recorded until glGetError is called, the error code is returned, and the flag is reset to GL_NO_ERROR. If a call to glGetError returns GL_NO_ERROR, there has been no detectable error since the last call to glGetError, or since the GL was initialized.

      To allow for distributed implementations, there may be several error flags. If any single error flag has recorded an error, the value of that flag is returned and that flag is reset to GL_NO_ERROR when glGetError is called. If more than one flag has recorded an error, glGetError returns and clears an arbitrary error flag value. Thus, glGetError should always be called in a loop, until it returns GL_NO_ERROR, if all error flags are to be reset.

      Initially, all error flags are set to GL_NO_ERROR.

      The following errors are currently defined:

      GL_NO_ERROR | No error has been recorded. The value of this symbolic constant is guaranteed to be 0.
      GL_INVALID_ENUM | An unacceptable value is specified for an enumerated argument. The offending command is ignored, and has no other side effect than to set the error flag.
      GL_INVALID_VALUE | A numeric argument is out of range. The offending command is ignored, and has no other side effect than to set the error flag.
      GL_INVALID_OPERATION | The specified operation is not allowed in the current state. The offending command is ignored, and has no other side effect than to set the error flag.
      GL_STACK_OVERFLOW | This command would cause a stack overflow. The offending command is ignored, and has no other side effect than to set the error flag.
      GL_STACK_UNDERFLOW | This command would cause a stack underflow. The offending command is ignored, and has no other side effect than to set the error flag.
      GL_OUT_OF_MEMORY | There is not enough memory left to execute the command. The state of the GL is undefined, except for the state of the error flags, after this error is recorded.

      When an error flag is set, results of a GL operation are undefined only if GL_OUT_OF_MEMORY has occurred. In all other cases, the command generating the error is ignored and has no effect on the GL state or frame buffer contents. If the generating command returns a value, it returns 0. If glGetError itself generates an error, it returns 0.

    Throws

      GL_INVALID_OPERATION is generated if glGetError is executed between the execution of glBegin and the corresponding execution of glEnd. In this case glGetError returns 0.

    Method glGetString

      `string glGetString(int name)`

    Description

      glGetString returns a pointer to a static string describing some aspect of the current GL connection. name can be one of the following:

      GL_VENDOR | Returns the company responsible for this GL implementation. This name does not change from release to release.
      GL_RENDERER | Returns the name of the renderer. This name is typically specific to a particular configuration of a hardware platform. It does not change from release to release.
      GL_VERSION | Returns a version or release number.
      GL_EXTENSIONS | Returns a space-separated list of supported extensions to GL.

      Because the GL does not include queries for the performance characteristics of an implementation, some applications are written to recognize known platforms and modify their GL usage based on known performance characteristics of these platforms. Strings GL_VENDOR and GL_RENDERER together uniquely specify a platform. They do not change from release to release and should be used by platform-recognition algorithms.

      Some applications want to make use of features that are not part of the standard GL. These features may be implemented as extensions to the standard GL. The GL_EXTENSIONS string is a space-separated list of supported GL extensions. (Extension names never contain a space character.)

      The GL_VERSION string begins with a version number. The version number uses one of these forms:

      major_number.minor_number

      major_number.minor_number.release_number

      Vendor-specific information may follow the version number. Its format depends on the implementation, but a space always separates the version number and the vendor-specific information.

      All strings are null-terminated.

    Parameter `name`

      Specifies a symbolic constant, one of GL_VENDOR, GL_RENDERER, GL_VERSION, or GL_EXTENSIONS.

    Throws

      GL_INVALID_ENUM is generated if name is not an accepted value.

      GL_INVALID_OPERATION is generated if glGetString is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glHint

      `void glHint(int target, int mode)`

    Description

      Certain aspects of GL behavior, when there is room for interpretation, can be controlled with hints. A hint is specified with two arguments. target is a symbolic constant indicating the behavior to be controlled, and mode is another symbolic constant indicating the desired behavior. The initial value for each target is GL_DONT_CARE. mode can be one of the following:

      GL_FASTEST | The most efficient option should be chosen.
      GL_NICEST | The most correct, or highest quality, option should be chosen.
      GL_DONT_CARE | No preference.

      Though the implementation aspects that can be hinted are well defined, the interpretation of the hints depends on the implementation. The hint aspects that can be specified with target, along with suggested semantics, are as follows:

      GL_FOG_HINT | Indicates the accuracy of fog calculation. If per-pixel fog calculation is not efficiently supported by the GL implementation, hinting GL_DONT_CARE or GL_FASTEST can result in per-vertex calculation of fog effects.
      GL_LINE_SMOOTH_HINT | Indicates the sampling quality of antialiased lines. If a larger filter function is applied, hinting GL_NICEST can result in more pixel fragments being generated during rasterization,
      GL_PERSPECTIVE_CORRECTION_HINT | Indicates the quality of color and texture coordinate interpolation. If perspective-corrected parameter interpolation is not efficiently supported by the GL implementation, hinting GL_DONT_CARE or GL_FASTEST can result in simple linear interpolation of colors and/or texture coordinates.
      GL_POINT_SMOOTH_HINT | Indicates the sampling quality of antialiased points. If a larger filter function is applied, hinting GL_NICEST can result in more pixel fragments being generated during rasterization,
      GL_POLYGON_SMOOTH_HINT | Indicates the sampling quality of antialiased polygons. Hinting GL_NICEST can result in more pixel fragments being generated during rasterization, if a larger filter function is applied.

    Parameter `target`

      Specifies a symbolic constant indicating the behavior to be controlled. GL_FOG_HINT, GL_LINE_SMOOTH_HINT, GL_PERSPECTIVE_CORRECTION_HINT, GL_POINT_SMOOTH_HINT, and GL_POLYGON_SMOOTH_HINT are accepted.

    Parameter `mode`

      Specifies a symbolic constant indicating the desired behavior. GL_FASTEST, GL_NICEST, and GL_DONT_CARE are accepted.

    Throws

      GL_INVALID_ENUM is generated if either target or mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glHint is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glIndex

      `void glIndex(float|int c)`

    Description

      glIndex updates the current (single-valued) color index. It takes one argument, the new value for the current color index.

      The current index is stored as a floating-point value. Integer values are converted directly to floating-point values, with no special mapping. The initial value is 1.

      Index values outside the representable range of the color index buffer are not clamped. However, before an index is dithered (if enabled) and written to the frame buffer, it is converted to fixed-point format. Any bits in the integer portion of the resulting fixed-point value that do not correspond to bits in the frame buffer are masked out.

    Parameter `c`

      Specifies the new value for the current color index.

    Parameter `c`

      Specifies a pointer to a one-element array that contains the new value for the current color index.

    Method glIndexMask

      `void glIndexMask(int mask)`

    Description

      glIndexMask controls the writing of individual bits in the color index buffers. The least significant n bits of mask, where n is the number of bits in a color index buffer, specify a mask. Where a 1 (one) appears in the mask, it's possible to write to the corresponding bit in the color index buffer (or buffers). Where a 0 (zero) appears, the corresponding bit is write-protected.

      This mask is used only in color index mode, and it affects only the buffers currently selected for writing (see glDrawBuffer). Initially, all bits are enabled for writing.

    Parameter `mask`

      Specifies a bit mask to enable and disable the writing of individual bits in the color index buffers. Initially, the mask is all 1's.

    Throws

      GL_INVALID_OPERATION is generated if glIndexMask is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glInitNames

      `void glInitNames()`

    Description

      The name stack is used during selection mode to allow sets of rendering commands to be uniquely identified. It consists of an ordered set of unsigned integers. glInitNames causes the name stack to be initialized to its default empty state.

      The name stack is always empty while the render mode is not GL_SELECT. Calls to glInitNames while the render mode is not GL_SELECT are ignored.

    Throws

      GL_INVALID_OPERATION is generated if glInitNames is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glIsEnabled

      `int glIsEnabled(int cap)`

    Description

      glIsEnabled returns GL_TRUE if cap is an enabled capability and returns GL_FALSE otherwise. Initially all capabilities except GL_DITHER are disabled; GL_DITHER is initially enabled.

      The following capabilities are accepted for cap:

      .TS lb lb l l l. Constant See _

      GL_ALPHA_TEST glAlphaFunc GL_AUTO_NORMAL glEvalCoord GL_BLEND glBlendFunc, glLogicOp GL_CLIP_PLANE i glClipPlane GL_COLOR_ARRAY glColorPointer GL_COLOR_LOGIC_OP glLogicOp GL_COLOR_MATERIAL glColorMaterial GL_CULL_FACE glCullFace GL_DEPTH_TEST glDepthFunc, glDepthRange GL_DITHER glEnable GL_EDGE_FLAG_ARRAY glEdgeFlagPointer GL_FOG glFog GL_INDEX_ARRAY glIndexPointer GL_INDEX_LOGIC_OP glLogicOp GL_LIGHT i glLightModel, glLight GL_LIGHTING glMaterial, glLightModel, glLight GL_LINE_SMOOTH glLineWidth GL_LINE_STIPPLE glLineStipple GL_MAP1_COLOR_4 glMap1, glMap2 GL_MAP2_TEXTURE_COORD_2 glMap2 GL_MAP2_TEXTURE_COORD_3 glMap2 GL_MAP2_TEXTURE_COORD_4 glMap2 GL_MAP2_VERTEX_3 glMap2 GL_MAP2_VERTEX_4 glMap2 GL_NORMAL_ARRAY glNormalPointer GL_NORMALIZE glNormal GL_POINT_SMOOTH glPointSize GL_POLYGON_SMOOTH glPolygonMode GL_POLYGON_OFFSET_FILL glPolygonOffset GL_POLYGON_OFFSET_LINE glPolygonOffset GL_POLYGON_OFFSET_POINT glPolygonOffset GL_POLYGON_STIPPLE glPolygonStipple GL_SCISSOR_TEST glScissor GL_STENCIL_TEST glStencilFunc, glStencilOp GL_TEXTURE_1D glTexImage1D GL_TEXTURE_2D glTexImage2D GL_TEXTURE_COORD_ARRAY glTexCoordPointer GL_TEXTURE_GEN_Q glTexGen GL_TEXTURE_GEN_R glTexGen GL_TEXTURE_GEN_S glTexGen GL_TEXTURE_GEN_T glTexGen GL_VERTEX_ARRAY glVertexPointer .TE

    Parameter `cap`

      Specifies a symbolic constant indicating a GL capability.

    Throws

      GL_INVALID_ENUM is generated if cap is not an accepted value.

      GL_INVALID_OPERATION is generated if glIsEnabled is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glIsList

      `int glIsList(int list)`

    Description

      glIsList returns GL_TRUE if list is the name of a display list and returns GL_FALSE otherwise.

    Parameter `list`

      Specifies a potential display-list name.

    Throws

      GL_INVALID_OPERATION is generated if glIsList is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glIsTexture

      `int glIsTexture(int texture)`

    Description

      glIsTexture returns GL_TRUE if texture is currently the name of a texture. If texture is zero, or is a non-zero value that is not currently the name of a texture, or if an error occurs, glIsTexture returns GL_FALSE.

    Parameter `texture`

      Specifies a value that may be the name of a texture.

    Throws

      GL_INVALID_OPERATION is generated if glIsTexture is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLight

      `void glLight(int light, int pname, float|int|array(float|int) param)`

    Description

      glLight sets the values of individual light source parameters. light names the light and is a symbolic name of the form GL_LIGHTi, where 0 \(<= i < GL_MAX_LIGHTS. pname specifies one of ten light source parameters, again by symbolic name. params is either a single value or a pointer to an array that contains the new values.

      To enable and disable lighting calculation, call glEnable and glDisable with argument GL_LIGHTING. Lighting is initially disabled. When it is enabled, light sources that are enabled contribute to the lighting calculation. Light source i is enabled and disabled using glEnable and glDisable with argument GL_LIGHTi.

      The ten light parameters are as follows:

      GL_AMBIENT

      params contains four integer or floating-point values that specify the ambient RGBA intensity of the light. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial ambient light intensity is (0, 0, 0, 1).

      GL_DIFFUSE

      params contains four integer or floating-point values that specify the diffuse RGBA intensity of the light. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial value for GL_LIGHT0 is (1, 1, 1, 1); for other lights, the initial value is (0, 0, 0, 0).

      GL_SPECULAR

      params contains four integer or floating-point values that specify the specular RGBA intensity of the light. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial value for GL_LIGHT0 is (1, 1, 1, 1); for other lights, the initial value is (0, 0, 0, 0).

      GL_POSITION

      params contains four integer or floating-point values that specify the position of the light in homogeneous object coordinates. Both integer and floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The position is transformed by the modelview matrix when glLight is called (just as if it were a point), and it is stored in eye coordinates. If the w component of the position is 0, the light is treated as a directional source. Diffuse and specular lighting calculations take the light's direction, but not its actual position, into account, and attenuation is disabled. Otherwise, diffuse and specular lighting calculations are based on the actual location of the light in eye coordinates, and attenuation is enabled. The initial position is (0, 0, 1, 0); thus, the initial light source is directional, parallel to, and in the direction of the -z axis.

      GL_SPOT_DIRECTION

      params contains three integer or floating-point values that specify the direction of the light in homogeneous object coordinates. Both integer and floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The spot direction is transformed by the inverse of the modelview matrix when glLight is called (just as if it were a normal), and it is stored in eye coordinates. It is significant only when GL_SPOT_CUTOFF is not 180, which it is initially. The initial direction is (0, 0, -1).

      GL_SPOT_EXPONENT

      params is a single integer or floating-point value that specifies the intensity distribution of the light. Integer and floating-point values are mapped directly. Only values in the range [0,128] are accepted. Effective light intensity is attenuated by the cosine of the angle between the direction of the light and the direction from the light to the vertex being lighted, raised to the power of the spot exponent. Thus, higher spot exponents result in a more focused light source, regardless of the spot cutoff angle (see GL_SPOT_CUTOFF, next paragraph). The initial spot exponent is 0, resulting in uniform light distribution.

      GL_SPOT_CUTOFF

      params is a single integer or floating-point value that specifies the maximum spread angle of a light source. Integer and floating-point values are mapped directly. Only values in the range [0,90] and the special value 180 are accepted. If the angle between the direction of the light and the direction from the light to the vertex being lighted is greater than the spot cutoff angle, the light is completely masked. Otherwise, its intensity is controlled by the spot exponent and the attenuation factors. The initial spot cutoff is 180, resulting in uniform light distribution.

      GL_CONSTANT_ATTENUATION |
      GL_LINEAR_ATTENUATION |

      GL_QUADRATIC_ATTENUATION

      params is a single integer or floating-point value that specifies one of the three light attenuation factors. Integer and floating-point values are mapped directly. Only nonnegative values are accepted. If the light is positional, rather than directional, its intensity is attenuated by the reciprocal of the sum of the constant factor, the linear factor times the distance between the light and the vertex being lighted, and the quadratic factor times the square of the same distance. The initial attenuation factors are (1, 0, 0), resulting in no attenuation.

    Parameter `light`

      Specifies a light. The number of lights depends on the implementation, but at least eight lights are supported. They are identified by symbolic names of the form GL_LIGHTi where 0 \(<= i < GL_MAX_LIGHTS.

    Parameter `pname`

      Specifies a single-valued light source parameter for light. GL_SPOT_EXPONENT, GL_SPOT_CUTOFF, GL_CONSTANT_ATTENUATION, GL_LINEAR_ATTENUATION, and GL_QUADRATIC_ATTENUATION are accepted.

    Parameter `param`

      Specifies the value that parameter pname of light source light will be set to.

    Parameter `light`

      Specifies a light. The number of lights depends on the implementation, but at least eight lights are supported. They are identified by symbolic names of the form GL_LIGHTi where 0 \(<= i < GL_MAX_LIGHTS.

    Parameter `pname`

      Specifies a light source parameter for light. GL_AMBIENT, GL_DIFFUSE, GL_SPECULAR, GL_POSITION, GL_SPOT_CUTOFF, GL_SPOT_DIRECTION, GL_SPOT_EXPONENT, GL_CONSTANT_ATTENUATION, GL_LINEAR_ATTENUATION, and GL_QUADRATIC_ATTENUATION are accepted.

    Parameter `params`

      Specifies a pointer to the value or values that parameter pname of light source light will be set to.

    Throws

      GL_INVALID_ENUM is generated if either light or pname is not an accepted value.

      GL_INVALID_VALUE is generated if a spot exponent value is specified outside the range [0,128], or if spot cutoff is specified outside the range [0,90] (except for the special value 180), or if a negative attenuation factor is specified.

      GL_INVALID_OPERATION is generated if glLight is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLightModel

      `void glLightModel(int pname, float|int|array(float|int) param)`

    Description

      glLightModel sets the lighting model parameter. pname names a parameter and params gives the new value. There are three lighting model parameters:

      GL_LIGHT_MODEL_AMBIENT

      params contains four integer or floating-point values that specify the ambient RGBA intensity of the entire scene. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial ambient scene intensity is (0.2, 0.2, 0.2, 1.0).

      GL_LIGHT_MODEL_LOCAL_VIEWER

      params is a single integer or floating-point value that specifies how specular reflection angles are computed. If params is 0 (or 0.0), specular reflection angles take the view direction to be parallel to and in the direction of the -z axis, regardless of the location of the vertex in eye coordinates. Otherwise, specular reflections are computed from the origin of the eye coordinate system. The initial value is 0.

      GL_LIGHT_MODEL_TWO_SIDE

      params is a single integer or floating-point value that specifies whether one- or two-sided lighting calculations are done for polygons. It has no effect on the lighting calculations for points, lines, or bitmaps. If params is 0 (or 0.0), one-sided lighting is specified, and only the front material parameters are used in the lighting equation. Otherwise, two-sided lighting is specified. In this case, vertices of back-facing polygons are lighted using the back material parameters, and have their normals reversed before the lighting equation is evaluated. Vertices of front-facing polygons are always lighted using the front material parameters, with no change to their normals. The initial value is 0.

      In RGBA mode, the lighted color of a vertex is the sum of the material emission intensity, the product of the material ambient reflectance and the lighting model full-scene ambient intensity, and the contribution of each enabled light source. Each light source contributes the sum of three terms: ambient, diffuse, and specular. The ambient light source contribution is the product of the material ambient reflectance and the light's ambient intensity. The diffuse light source contribution is the product of the material diffuse reflectance, the light's diffuse intensity, and the dot product of the vertex's normal with the normalized vector from the vertex to the light source. The specular light source contribution is the product of the material specular reflectance, the light's specular intensity, and the dot product of the normalized vertex-to-eye and vertex-to-light vectors, raised to the power of the shininess of the material. All three light source contributions are attenuated equally based on the distance from the vertex to the light source and on light source direction, spread exponent, and spread cutoff angle. All dot products are replaced with 0 if they evaluate to a negative value.

      The alpha component of the resulting lighted color is set to the alpha value of the material diffuse reflectance.

      In color index mode, the value of the lighted index of a vertex ranges from the ambient to the specular values passed to glMaterial using GL_COLOR_INDEXES. Diffuse and specular coefficients, computed with a (.30, .59, .11) weighting of the lights' colors, the shininess of the material, and the same reflection and attenuation equations as in the RGBA case, determine how much above ambient the resulting index is.

    Parameter `pname`

      Specifies a single-valued lighting model parameter. GL_LIGHT_MODEL_LOCAL_VIEWER and GL_LIGHT_MODEL_TWO_SIDE are accepted.

    Parameter `param`

      Specifies the value that param will be set to.

    Parameter `pname`

      Specifies a lighting model parameter. GL_LIGHT_MODEL_AMBIENT, GL_LIGHT_MODEL_LOCAL_VIEWER, and GL_LIGHT_MODEL_TWO_SIDE are accepted.

    Parameter `params`

      Specifies a pointer to the value or values that params will be set to.

    Throws

      GL_INVALID_ENUM is generated if pname is not an accepted value.

      GL_INVALID_OPERATION is generated if glLightModel is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLineStipple

      `void glLineStipple(int factor, int pattern)`

    Description

      Line stippling masks out certain fragments produced by rasterization; those fragments will not be drawn. The masking is achieved by using three parameters: the 16-bit line stipple pattern pattern, the repeat count factor, and an integer stipple counter s.

      Counter s is reset to 0 whenever glBegin is called, and before each line segment of a glBegin(GL_LINES)/glEnd sequence is generated. It is incremented after each fragment of a unit width aliased line segment is generated, or after each i fragments of an i width line segment are generated. The i fragments associated with count s are masked out if .sp .ce pattern bit (s ~/~ "factor") ~roman mod~ 16 .sp is 0, otherwise these fragments are sent to the frame buffer. Bit zero of pattern is the least significant bit.

      Antialiased lines are treated as a sequence of 1 times width rectangles for purposes of stippling. Whether rectagle s is rasterized or not depends on the fragment rule described for aliased lines, counting rectangles rather than groups of fragments.

      To enable and disable line stippling, call glEnable and glDisable with argument GL_LINE_STIPPLE. When enabled, the line stipple pattern is applied as described above. When disabled, it is as if the pattern were all 1's. Initially, line stippling is disabled.

    Parameter `factor`

      Specifies a multiplier for each bit in the line stipple pattern. If factor is 3, for example, each bit in the pattern is used three times before the next bit in the pattern is used. factor is clamped to the range [1, 256] and defaults to 1.

    Parameter `pattern`

      Specifies a 16-bit integer whose bit pattern determines which fragments of a line will be drawn when the line is rasterized. Bit zero is used first; the default pattern is all 1's.

    Throws

      GL_INVALID_OPERATION is generated if glLineStipple is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLineWidth

      `void glLineWidth(float width)`

    Description

      glLineWidth specifies the rasterized width of both aliased and antialiased lines. Using a line width other than 1 has different effects, depending on whether line antialiasing is enabled. To enable and disable line antialiasing, call glEnable and glDisable with argument GL_LINE_SMOOTH. Line antialiasing is initially disabled.

      If line antialiasing is disabled, the actual width is determined by rounding the supplied width to the nearest integer. (If the rounding results in the value 0, it is as if the line width were 1.) If .nf | DELTA x | >= | DELTA y |, .fi i pixels are filled in each column that is rasterized, where i is the rounded value of width. Otherwise, i pixels are filled in each row that is rasterized.

      If antialiasing is enabled, line rasterization produces a fragment for each pixel square that intersects the region lying within the rectangle having width equal to the current line width, length equal to the actual length of the line, and centered on the mathematical line segment. The coverage value for each fragment is the window coordinate area of the intersection of the rectangular region with the corresponding pixel square. This value is saved and used in the final rasterization step.

      Not all widths can be supported when line antialiasing is enabled. If an unsupported width is requested, the nearest supported width is used. Only width 1 is guaranteed to be supported; others depend on the implementation. To query the range of supported widths and the size difference between supported widths within the range, call glGet with arguments GL_LINE_WIDTH_RANGE and GL_LINE_WIDTH_GRANULARITY.

    Parameter `width`

      Specifies the width of rasterized lines. The initial value is 1.

    Throws

      GL_INVALID_VALUE is generated if width is less than or equal to 0.

      GL_INVALID_OPERATION is generated if glLineWidth is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glListBase

      `void glListBase(int base)`

    Description

      glCallLists specifies an array of offsets. Display-list names are generated by adding base to each offset. Names that reference valid display lists are executed; the others are ignored.

    Parameter `base`

      Specifies an integer offset that will be added to glCallLists offsets to generate display-list names. The initial value is 0.

    Throws

      GL_INVALID_OPERATION is generated if glListBase is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLoadIdentity

      `void glLoadIdentity()`

    Description

      glLoadIdentity replaces the current matrix with the identity matrix. It is semantically equivalent to calling glLoadMatrix with the identity matrix

      .ce

      .EQ left ( down 20 { ~ matrix { ccol { 1 above 0 above 0 above 0~ } ccol { 0 above 1 above 0 above 0~ } ccol { 0 above 0 above 1 above 0~ } ccol { 0 above 0 above 0 above 1 } } } ~~ right ) .EN

      but in some cases it is more efficient.

    Throws

      GL_INVALID_OPERATION is generated if glLoadIdentity is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLoadMatrix

      `void glLoadMatrix(array(array(float|int)) m)`

    Description

      glLoadMatrix replaces the current matrix with the one whose elements are specified by m. The current matrix is the projection matrix, modelview matrix, or texture matrix, depending on the current matrix mode (see glMatrixMode).

      The current matrix, M, defines a transformation of coordinates. For instance, assume M refers to the modelview matrix. If v ~=~ (v[0], v[1], v[2], v[3]) is the set of object coordinates of a vertex, and m points to an array of 16 single- or double-precision floating-point values m[0], m[1],. . .,m[15], then the modelview transformation M(v) does the following:

      .ce .EQ down 130 {M(v) ~ = ~ {{ left ( matrix { ccol { ~m[0] above m[1] above m[2] above m[3] ~} ccol { ~m[4] above m[5] above m[6] above m[7] ~} ccol { ~m[8] above m[9] above m[10] above m[11] ~} ccol { ~m[12]~ above m[13]~ above m[14]~ above m[15]~} } right ) } ~~ times ~~ {left ( matrix { ccol { ~v[0]~ above ~v[1]~ above ~v[2]~ above ~v[3]~ } } right )} }} .EN

      .sp

      Where 'times' denotes matrix multiplication.

      Projection and texture transformations are similarly defined.

    Parameter `m`

      Specifies a pointer to 16 consecutive values, which are used as the elements of a 4 times 4 column-major matrix.

    Throws

      GL_INVALID_OPERATION is generated if glLoadMatrix is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLoadName

      `void glLoadName(int name)`

    Description

      The name stack is used during selection mode to allow sets of rendering commands to be uniquely identified. It consists of an ordered set of unsigned integers. glLoadName causes name to replace the value on the top of the name stack, which is initially empty.

      The name stack is always empty while the render mode is not GL_SELECT. Calls to glLoadName while the render mode is not GL_SELECT are ignored.

    Parameter `name`

      Specifies a name that will replace the top value on the name stack.

    Throws

      GL_INVALID_OPERATION is generated if glLoadName is called while the name stack is empty.

      GL_INVALID_OPERATION is generated if glLoadName is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glLogicOp

      `void glLogicOp(int opcode)`

    Description

      glLogicOp specifies a logical operation that, when enabled, is applied between the incoming color index or RGBA color and the color index or RGBA color at the corresponding location in the frame buffer. To enable or disable the logical operation, call glEnable and glDisable using the symbolic constant GL_COLOR_LOGIC_OP for RGBA mode or GL_INDEX_LOGIC_OP for color index mode. The initial value is disabled for both operations.

      .ne .TS center box ; ci | ci c | c . opcode resulting value = GL_CLEAR 0 GL_SET 1 GL_COPY s GL_COPY_INVERTED ~s GL_NOOP d GL_INVERT ~d GL_AND s & d GL_NAND ~(s & d) GL_OR s | d GL_NOR ~(s | d) GL_XOR s ^ d GL_EQUIV ~(s ^ d) GL_AND_REVERSE s & ~d GL_AND_INVERTED ~s & d GL_OR_REVERSE s | ~d GL_OR_INVERTED ~s | d .TE

      opcode is a symbolic constant chosen from the list above. In the explanation of the logical operations, s represents the incoming color index and d represents the index in the frame buffer. Standard C-language operators are used. As these bitwise operators suggest, the logical operation is applied independently to each bit pair of the source and destination indices or colors.

    Parameter `opcode`

      Specifies a symbolic constant that selects a logical operation. The following symbols are accepted: GL_CLEAR, GL_SET, GL_COPY, GL_COPY_INVERTED, GL_NOOP, GL_INVERT, GL_AND, GL_NAND, GL_OR, GL_NOR, GL_XOR, GL_EQUIV, GL_AND_REVERSE, GL_AND_INVERTED, GL_OR_REVERSE, and GL_OR_INVERTED. The initial value is GL_COPY.

    Throws

      GL_INVALID_ENUM is generated if opcode is not an accepted value.

      GL_INVALID_OPERATION is generated if glLogicOp is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glMaterial

      `void glMaterial(int face, int pname, float|int|array(float|int) param)`

    Description

      glMaterial assigns values to material parameters. There are two matched sets of material parameters. One, the front-facing set, is used to shade points, lines, bitmaps, and all polygons (when two-sided lighting is disabled), or just front-facing polygons (when two-sided lighting is enabled). The other set, back-facing, is used to shade back-facing polygons only when two-sided lighting is enabled. Refer to the glLightModel reference page for details concerning one- and two-sided lighting calculations.

      glMaterial takes three arguments. The first, face, specifies whether the GL_FRONT materials, the GL_BACK materials, or both GL_FRONT_AND_BACK materials will be modified. The second, pname, specifies which of several parameters in one or both sets will be modified. The third, params, specifies what value or values will be assigned to the specified parameter.

      Material parameters are used in the lighting equation that is optionally applied to each vertex. The equation is discussed in the glLightModel reference page. The parameters that can be specified using glMaterial, and their interpretations by the lighting equation, are as follows:

      GL_AMBIENT

      params contains four integer or floating-point values that specify the ambient RGBA reflectance of the material. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial ambient reflectance for both front- and back-facing materials is (0.2, 0.2, 0.2, 1.0).

      GL_DIFFUSE

      params contains four integer or floating-point values that specify the diffuse RGBA reflectance of the material. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial diffuse reflectance for both front- and back-facing materials is (0.8, 0.8, 0.8, 1.0).

      GL_SPECULAR

      params contains four integer or floating-point values that specify the specular RGBA reflectance of the material. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial specular reflectance for both front- and back-facing materials is (0, 0, 0, 1).

      GL_EMISSION

      params contains four integer or floating-point values that specify the RGBA emitted light intensity of the material. Integer values are mapped linearly such that the most positive representable value maps to 1.0, and the most negative representable value maps to -1.0. Floating-point values are mapped directly. Neither integer nor floating-point values are clamped. The initial emission intensity for both front- and back-facing materials is (0, 0, 0, 1).

      GL_SHININESS | params is a single integer or floating-point value that specifies the RGBA specular exponent of the material. Integer and floating-point values are mapped directly. Only values in the range [0,128] are accepted. The initial specular exponent for both front- and back-facing materials is 0.
      GL_AMBIENT_AND_DIFFUSE | Equivalent to calling glMaterial twice with the same parameter values, once with GL_AMBIENT and once with GL_DIFFUSE.
      GL_COLOR_INDEXES | params contains three integer or floating-point values specifying the color indices for ambient, diffuse, and specular lighting. These three values, and GL_SHININESS, are the only material values used by the color index mode lighting equation. Refer to the glLightModel reference page for a discussion of color index lighting.

    Parameter `face`

      Specifies which face or faces are being updated. Must be one of GL_FRONT, GL_BACK, or GL_FRONT_AND_BACK.

    Parameter `pname`

      Specifies the single-valued material parameter of the face or faces that is being updated. Must be GL_SHININESS.

    Parameter `param`

      Specifies the value that parameter GL_SHININESS will be set to.

    Parameter `face`

      Specifies which face or faces are being updated. Must be one of GL_FRONT, GL_BACK, or GL_FRONT_AND_BACK.

    Parameter `pname`

      Specifies the material parameter of the face or faces that is being updated. Must be one of GL_AMBIENT, GL_DIFFUSE, GL_SPECULAR, GL_EMISSION, GL_SHININESS, GL_AMBIENT_AND_DIFFUSE, or GL_COLOR_INDEXES.

    Parameter `params`

      Specifies a pointer to the value or values that pname will be set to.

    Throws

      GL_INVALID_ENUM is generated if either face or pname is not an accepted value.

      GL_INVALID_VALUE is generated if a specular exponent outside the range [0,128] is specified.

    Method glMatrixMode

      `void glMatrixMode(int mode)`

    Description

      glMatrixMode sets the current matrix mode. mode can assume one of three values:

      GL_MODELVIEW | Applies subsequent matrix operations to the modelview matrix stack.
      GL_PROJECTION | Applies subsequent matrix operations to the projection matrix stack.
      GL_TEXTURE | Applies subsequent matrix operations to the texture matrix stack.

      To find out which matrix stack is currently the target of all matrix operations, call glGet with argument GL_MATRIX_MODE. The initial value is GL_MODELVIEW.

    Parameter `mode`

      Specifies which matrix stack is the target for subsequent matrix operations. Three values are accepted: GL_MODELVIEW, GL_PROJECTION, and GL_TEXTURE. The initial value is GL_MODELVIEW.

    Throws

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glMatrixMode is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glMultMatrix

      `void glMultMatrix(array(array(float|int)) m)`

    Description

      glMultMatrix multiplies the current matrix with the one specified using m, and replaces the current matrix with the product.

      The current matrix is determined by the current matrix mode (see glMatrixMode). It is either the projection matrix, modelview matrix, or the texture matrix.

    Parameter `m`

      Points to 16 consecutive values that are used as the elements of a 4 times 4 column-major matrix.

    Throws

      GL_INVALID_OPERATION is generated if glMultMatrix is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glNewList

      `void glNewList(int list, int mode)`

    Description

      Display lists are groups of GL commands that have been stored for subsequent execution. Display lists are created with glNewList. All subsequent commands are placed in the display list, in the order issued, until glEndList is called.

      glNewList has two arguments. The first argument, list, is a positive integer that becomes the unique name for the display list. Names can be created and reserved with glGenLists and tested for uniqueness with glIsList. The second argument, mode, is a symbolic constant that can assume one of two values:

      GL_COMPILE | Commands are merely compiled.
      GL_COMPILE_AND_EXECUTE | Commands are executed as they are compiled into the display list.

      Certain commands are not compiled into the display list but are executed immediately, regardless of the display-list mode. These commands are glColorPointer, glDeleteLists, glDisableClientState, glEdgeFlagPointer, glEnableClientState, glFeedbackBuffer, glFinish, glFlush, glGenLists, glIndexPointer, glInterleavedArrays, glIsEnabled, glIsList, glNormalPointer, glPopClientAttrib, glPixelStore, glPushClientAttrib, glReadPixels, glRenderMode, glSelectBuffer, glTexCoordPointer, glVertexPointer, and all of the glGet commands.

      Similarly, glTexImage2D and glTexImage1D are executed immediately and not compiled into the display list when their first argument is GL_PROXY_TEXTURE_2D or GL_PROXY_TEXTURE_1D, respectively.

      When glEndList is encountered, the display-list definition is completed by associating the list with the unique name list (specified in the glNewList command). If a display list with name list already exists, it is replaced only when glEndList is called.

    Parameter `list`

      Specifies the display-list name.

    Parameter `mode`

      Specifies the compilation mode, which can be GL_COMPILE or GL_COMPILE_AND_EXECUTE.

    Throws

      GL_INVALID_VALUE is generated if list is 0.

      GL_INVALID_ENUM is generated if mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glEndList is called without a preceding glNewList, or if glNewList is called while a display list is being defined.

      GL_INVALID_OPERATION is generated if glNewList or glEndList is executed between the execution of glBegin and the corresponding execution of glEnd.

      GL_OUT_OF_MEMORY is generated if there is insufficient memory to compile the display list. If the GL version is 1.1 or greater, no change is made to the previous contents of the display list, if any, and no other change is made to the GL state. (It is as if no attempt had been made to create the new display list.)

    Method glNormal

      `void glNormal(float|int|array(float|int) nx, float|int|void ny, float|int|void nz)`

    Description

      The current normal is set to the given coordinates whenever glNormal is issued. Byte, short, or integer arguments are converted to floating-point format with a linear mapping that maps the most positive representable integer value to 1.0, and the most negative representable integer value to -1.0.

      Normals specified with glNormal need not have unit length. If normalization is enabled, then normals specified with glNormal are normalized after transformation. To enable and disable normalization, call glEnable and glDisable with the argument GL_NORMALIZE. Normalization is initially disabled.

    Parameter `nx`

      Specify the x, y, and z coordinates of the new current normal. The initial value of the current normal is the unit vector, (0, 0, 1).

    Parameter `v`

      Specifies a pointer to an array of three elements: the x, y, and z coordinates of the new current normal.

    Method glOrtho

      `void glOrtho(float left, float right, float bottom, float top, float zNear, float zFar)`

    Description

      glOrtho describes a transformation that produces a parallel projection. The current matrix (see glMatrixMode) is multiplied by this matrix and the result replaces the current matrix, as if glMultMatrix were called with the following matrix as its argument: .sp .ce .EQ left ( matrix { ccol { {2 over {"right" - "left"}} above 0 above 0 above 0 } ccol { 0 above {2 over {"top" - "bottom"}} above 0 above 0 } ccol { 0 above 0 above {-2 over {"zFar" - "zNear"}} above 0 } ccol { {t sub x}~ above {t sub y}~ above {t sub z}~ above 1~ } } right ) .EN

      where .ce .EQ t sub x ~=~ -{{"right" + "left"} over {"right" - "left"}} .EN

      .ce .EQ t sub y ~=~ -{{"top" + "bottom"} over {"top" - "bottom"}} .EN

      .ce .EQ t sub z ~=~ -{{"zFar" + "zNear"} over {"zFar" - "zNear"}} .EN

      .RE

      Typically, the matrix mode is GL_PROJECTION, and (left, bottom, -zNear) and (right, top, -zNear) specify the points on the near clipping plane that are mapped to the lower left and upper right corners of the window, respectively, assuming that the eye is located at (0, 0, 0). -zFar specifies the location of the far clipping plane. Both zNear and zFar can be either positive or negative.

      Use glPushMatrix and glPopMatrix to save and restore the current matrix stack.

    Parameter `left`

      Specify the coordinates for the left and right vertical clipping planes.

    Parameter `bottom`

      Specify the coordinates for the bottom and top horizontal clipping planes.

    Parameter `zNear`

      Specify the distances to the nearer and farther depth clipping planes. These values are negative if the plane is to be behind the viewer.

    Throws

      GL_INVALID_OPERATION is generated if glOrtho is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPassThrough

      `void glPassThrough(float token)`

    Description

      Feedback is a GL render mode. The mode is selected by calling glRenderMode with GL_FEEDBACK. When the GL is in feedback mode, no pixels are produced by rasterization. Instead, information about primitives that would have been rasterized is fed back to the application using the GL. See the glFeedbackBuffer reference page for a description of the feedback buffer and the values in it.

      glPassThrough inserts a user-defined marker in the feedback buffer when it is executed in feedback mode. token is returned as if it were a primitive; it is indicated with its own unique identifying value: GL_PASS_THROUGH_TOKEN. The order of glPassThrough commands with respect to the specification of graphics primitives is maintained.

    Parameter `token`

      Specifies a marker value to be placed in the feedback buffer following a GL_PASS_THROUGH_TOKEN.

    Throws

      GL_INVALID_OPERATION is generated if glPassThrough is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPixelZoom

      `void glPixelZoom(float xfactor, float yfactor)`

    Description

      glPixelZoom specifies values for the x and y zoom factors. During the execution of glDrawPixels or glCopyPixels, if (xr , yr ) is the current raster position, and a given element is in the mth row and nth column of the pixel rectangle, then pixels whose centers are in the rectangle with corners at .sp .ce (xr ~+~ n cdot "xfactor", yr ~+~ m cdot "yfactor") .sp .ce (xr ~+~ (n+1) cdot "xfactor", yr ~+~ (m+1) cdot "yfactor") .sp are candidates for replacement. Any pixel whose center lies on the bottom or left edge of this rectangular region is also modified.

      Pixel zoom factors are not limited to positive values. Negative zoom factors reflect the resulting image about the current raster position.

    Parameter `xfactor`

      Specify the x and y zoom factors for pixel write operations.

    Throws

      GL_INVALID_OPERATION is generated if glPixelZoom is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPointSize

      `void glPointSize(float size)`

    Description

      glPointSize specifies the rasterized diameter of both aliased and antialiased points. Using a point size other than 1 has different effects, depending on whether point antialiasing is enabled. To enable and disable point antialiasing, call glEnable and glDisable with argument GL_POINT_SMOOTH. Point antialiasing is initially disabled.

      If point antialiasing is disabled, the actual size is determined by rounding the supplied size to the nearest integer. (If the rounding results in the value 0, it is as if the point size were 1.) If the rounded size is odd, then the center point ( x , y ) of the pixel fragment that represents the point is computed as .sp .ce ( \(lf ~ x sub w ~ \(rf ~+~ .5 , \(lf ~ y sub w ~ \(rf ~+~ .5 ) .sp where w subscripts indicate window coordinates. All pixels that lie within the square grid of the rounded size centered at ( x , y ) make up the fragment. If the size is even, the center point is .sp .ce ( \(lf ~ x sub w ~+~ .5 ~ \(rf, \(lf ~ y sub w ~+~ .5 ~ \(rf ) .sp and the rasterized fragment's centers are the half-integer window coordinates within the square of the rounded size centered at ( x , y ). All pixel fragments produced in rasterizing a nonantialiased point are assigned the same associated data, that of the vertex corresponding to the point.

      If antialiasing is enabled, then point rasterization produces a fragment for each pixel square that intersects the region lying within the circle having diameter equal to the current point size and centered at the point's ( x sub w , y sub w ). The coverage value for each fragment is the window coordinate area of the intersection of the circular region with the corresponding pixel square. This value is saved and used in the final rasterization step. The data associated with each fragment is the data associated with the point being rasterized.

      Not all sizes are supported when point antialiasing is enabled. If an unsupported size is requested, the nearest supported size is used. Only size 1 is guaranteed to be supported; others depend on the implementation. To query the range of supported sizes and the size difference between supported sizes within the range, call glGet with arguments GL_POINT_SIZE_RANGE and GL_POINT_SIZE_GRANULARITY.

    Parameter `size`

      Specifies the diameter of rasterized points. The initial value is 1.

    Throws

      GL_INVALID_VALUE is generated if size is less than or equal to 0.

      GL_INVALID_OPERATION is generated if glPointSize is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPolygonMode

      `void glPolygonMode(int face, int mode)`

    Description

      glPolygonMode controls the interpretation of polygons for rasterization. face describes which polygons mode applies to: front-facing polygons (GL_FRONT), back-facing polygons (GL_BACK), or both (GL_FRONT_AND_BACK). The polygon mode affects only the final rasterization of polygons. In particular, a polygon's vertices are lit and the polygon is clipped and possibly culled before these modes are applied.

      Three modes are defined and can be specified in mode:

      GL_POINT | Polygon vertices that are marked as the start of a boundary edge are drawn as points. Point attributes such as GL_POINT_SIZE and GL_POINT_SMOOTH control the rasterization of the points. Polygon rasterization attributes other than GL_POLYGON_MODE have no effect.
      GL_LINE | Boundary edges of the polygon are drawn as line segments. They are treated as connected line segments for line stippling; the line stipple counter and pattern are not reset between segments (see glLineStipple). Line attributes such as GL_LINE_WIDTH and GL_LINE_SMOOTH control the rasterization of the lines. Polygon rasterization attributes other than GL_POLYGON_MODE have no effect.
      GL_FILL | The interior of the polygon is filled. Polygon attributes such as GL_POLYGON_STIPPLE and GL_POLYGON_SMOOTH control the rasterization of the polygon.

    Parameter `face`

      Specifies the polygons that mode applies to. Must be GL_FRONT for front-facing polygons, GL_BACK for back-facing polygons, or GL_FRONT_AND_BACK for front- and back-facing polygons.

    Parameter `mode`

      Specifies how polygons will be rasterized. Accepted values are GL_POINT, GL_LINE, and GL_FILL. The initial value is GL_FILL for both front- and back-facing polygons.

    Throws

      GL_INVALID_ENUM is generated if either face or mode is not an accepted value.

      GL_INVALID_OPERATION is generated if glPolygonMode is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPolygonOffset

      `void glPolygonOffset(float factor, float units)`

    Description

      When GL_POLYGON_OFFSET is enabled, each fragment's depth value will be offset after it is interpolated from the depth values of the appropriate vertices. The value of the offset is "factor" ~*~ DZ ~~+~~ r ~*~ "units", where DZ~ is a measurement of the change in depth relative to the screen area of the polygon, and r is the smallest value that is guaranteed to produce a resolvable offset for a given implementation. The offset is added before the depth test is performed and before the value is written into the depth buffer.

      glPolygonOffset is useful for rendering hidden-line images, for applying decals to surfaces, and for rendering solids with highlighted edges.

    Parameter `factor`

      Specifies a scale factor that is used to create a variable depth offset for each polygon. The initial value is 0.

    Parameter `units`

      Is multiplied by an implementation-specific value to create a constant depth offset. The initial value is 0.

    Throws

      GL_INVALID_OPERATION is generated if glPolygonOffset is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPopAttrib

      `void glPopAttrib()`

    Description

      glPushAttrib takes one argument, a mask that indicates which groups of state variables to save on the attribute stack. Symbolic constants are used to set bits in the mask. mask is typically constructed by ORing several of these constants together. The special mask GL_ALL_ATTRIB_BITS can be used to save all stackable states.

      The symbolic mask constants and their associated GL state are as follows (the second column lists which attributes are saved):

      .TS ; l l . GL_ACCUM_BUFFER_BIT Accumulation buffer clear value

      GL_COLOR_BUFFER_BIT GL_ALPHA_TEST enable bit Alpha test function and reference value GL_BLEND enable bit Blending source and destination functions Constant blend color Blending equation GL_DITHER enable bit GL_DRAW_BUFFER setting GL_COLOR_LOGIC_OP enable bit GL_INDEX_LOGIC_OP enable bit Logic op function Color mode and index mode clear values Color mode and index mode writemasks

      GL_CURRENT_BIT Current RGBA color Current color index Current normal vector Current texture coordinates Current raster position GL_CURRENT_RASTER_POSITION_VALID flag RGBA color associated with current raster position Color index associated with current raster position Texture coordinates associated with current raster position GL_EDGE_FLAG flag

      GL_DEPTH_BUFFER_BIT GL_DEPTH_TEST enable bit Depth buffer test function Depth buffer clear value GL_DEPTH_WRITEMASK enable bit

      GL_ENABLE_BIT GL_ALPHA_TEST flag GL_AUTO_NORMAL flag GL_BLEND flag Enable bits for the user-definable clipping planes GL_COLOR_MATERIAL GL_CULL_FACE flag GL_DEPTH_TEST flag GL_DITHER flag GL_FOG flag GL_LIGHT i where 0\ <= i<GL_MAX_LIGHTS GL_LIGHTING flag GL_LINE_SMOOTH flag GL_LINE_STIPPLE flag GL_COLOR_LOGIC_OP flag GL_INDEX_LOGIC_OP flag GL_MAP1_x where x is a map type GL_MAP2_x where x is a map type GL_NORMALIZE flag GL_POINT_SMOOTH flag GL_POLYGON_OFFSET_LINE flag GL_POLYGON_OFFSET_FILL flag GL_POLYGON_OFFSET_POINT flag GL_POLYGON_SMOOTH flag GL_POLYGON_STIPPLE flag GL_SCISSOR_TEST flag GL_STENCIL_TEST flag GL_TEXTURE_1D flag GL_TEXTURE_2D flag Flags GL_TEXTURE_GEN_x where x is S, T, R, or Q

      GL_EVAL_BIT GL_MAP1_x enable bits, where x is a map type GL_MAP2_x enable bits, where x is a map type 1D grid endpoints and divisions 2D grid endpoints and divisions GL_AUTO_NORMAL enable bit

      GL_FOG_BIT GL_FOG enable bit Fog color Fog density Linear fog start Linear fog end Fog index GL_FOG_MODE value

      GL_HINT_BIT GL_PERSPECTIVE_CORRECTION_HINT setting GL_POINT_SMOOTH_HINT setting GL_LINE_SMOOTH_HINT setting GL_POLYGON_SMOOTH_HINT setting GL_FOG_HINT setting

      GL_LIGHTING_BIT GL_COLOR_MATERIAL enable bit GL_COLOR_MATERIAL_FACE value Color material parameters that are tracking the current color Ambient scene color GL_LIGHT_MODEL_LOCAL_VIEWER value GL_LIGHT_MODEL_TWO_SIDE setting GL_LIGHTING enable bit Enable bit for each light Ambient, diffuse, and specular intensity for each light Direction, position, exponent, and cutoff angle for each light Constant, linear, and quadratic attenuation factors for each light Ambient, diffuse, specular, and emissive color for each material Ambient, diffuse, and specular color indices for each material Specular exponent for each material GL_SHADE_MODEL setting

      GL_LINE_BIT GL_LINE_SMOOTH flag GL_LINE_STIPPLE enable bit Line stipple pattern and repeat counter Line width

      GL_LIST_BIT GL_LIST_BASE setting

      GL_PIXEL_MODE_BIT GL_RED_BIAS and GL_RED_SCALE settings GL_GREEN_BIAS and GL_GREEN_SCALE values GL_BLUE_BIAS and GL_BLUE_SCALE GL_ALPHA_BIAS and GL_ALPHA_SCALE GL_DEPTH_BIAS and GL_DEPTH_SCALE GL_INDEX_OFFSET and GL_INDEX_SHIFT values GL_MAP_COLOR and GL_MAP_STENCIL flags GL_ZOOM_X and GL_ZOOM_Y factors GL_READ_BUFFER setting

      GL_POINT_BIT GL_POINT_SMOOTH flag Point size

      GL_POLYGON_BIT GL_CULL_FACE enable bit GL_CULL_FACE_MODE value GL_FRONT_FACE indicator GL_POLYGON_MODE setting GL_POLYGON_SMOOTH flag GL_POLYGON_STIPPLE enable bit GL_POLYGON_OFFSET_FILL flag GL_POLYGON_OFFSET_LINE flag GL_POLYGON_OFFSET_POINT flag GL_POLYGON_OFFSET_FACTOR GL_POLYGON_OFFSET_UNITS

      GL_POLYGON_STIPPLE_BIT Polygon stipple image

      GL_SCISSOR_BIT GL_SCISSOR_TEST flag Scissor box

      GL_STENCIL_BUFFER_BIT GL_STENCIL_TEST enable bit Stencil function and reference value Stencil value mask Stencil fail, pass, and depth buffer pass actions Stencil buffer clear value Stencil buffer writemask

      GL_TEXTURE_BIT Enable bits for the four texture coordinates Border color for each texture image Minification function for each texture image Magnification function for each texture image Texture coordinates and wrap mode for each texture image Color and mode for each texture environment Enable bits GL_TEXTURE_GEN_x, x is S, T, R, and Q GL_TEXTURE_GEN_MODE setting for S, T, R, and Q glTexGen plane equations for S, T, R, and Q Current texture bindings (for example, GL_TEXTURE_2D_BINDING)

      GL_TRANSFORM_BIT Coefficients of the six clipping planes Enable bits for the user-definable clipping planes GL_MATRIX_MODE value GL_NORMALIZE flag

      GL_VIEWPORT_BIT Depth range (near and far) Viewport origin and extent .TE

      glPopAttrib restores the values of the state variables saved with the last

      glPushAttrib command. Those not saved are left unchanged.

      It is an error to push attributes onto a full stack, or to pop attributes off an empty stack. In either case, the error flag is set and no other change is made to GL state.

      Initially, the attribute stack is empty.

    Parameter `mask`

      Specifies a mask that indicates which attributes to save. Values for mask are listed below.

    Throws

      GL_STACK_OVERFLOW is generated if glPushAttrib is called while the attribute stack is full.

      GL_STACK_UNDERFLOW is generated if glPopAttrib is called while the attribute stack is empty.

      GL_INVALID_OPERATION is generated if glPushAttrib or glPopAttrib is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPopClientAttrib

      `void glPopClientAttrib()`

    Description

      glPushClientAttrib takes one argument, a mask that indicates which groups of client-state variables to save on the client attribute stack. Symbolic constants are used to set bits in the mask. mask is typically constructed by OR'ing several of these constants together. The special mask GL_CLIENT_ALL_ATTRIB_BITS can be used to save all stackable client state.

      The symbolic mask constants and their associated GL client state are as follows (the second column lists which attributes are saved):

      GL_CLIENT_PIXEL_STORE_BIT Pixel storage modes

      GL_CLIENT_VERTEX_ARRAY_BIT Vertex arrays (and enables)

      glPopClientAttrib restores the values of the client-state variables saved with the last glPushClientAttrib. Those not saved are left unchanged.

      It is an error to push attributes onto a full client attribute stack, or to pop attributes off an empty stack. In either case, the error flag is set, and no other change is made to GL state.

      Initially, the client attribute stack is empty.

    Parameter `mask`

      Specifies a mask that indicates which attributes to save. Values for mask are listed below.

    Throws

      GL_STACK_OVERFLOW is generated if glPushClientAttrib is called while the attribute stack is full.

      GL_STACK_UNDERFLOW is generated if glPopClientAttrib is called while the attribute stack is empty.

    Method glPopMatrix

      `void glPopMatrix()`

    Description

      There is a stack of matrices for each of the matrix modes. In GL_MODELVIEW mode, the stack depth is at least 32. In the other two modes, GL_PROJECTION and GL_TEXTURE, the depth is at least 2. The current matrix in any mode is the matrix on the top of the stack for that mode.

      glPushMatrix pushes the current matrix stack down by one, duplicating the current matrix. That is, after a glPushMatrix call, the matrix on top of the stack is identical to the one below it.

      glPopMatrix pops the current matrix stack, replacing the current matrix with the one below it on the stack.

      Initially, each of the stacks contains one matrix, an identity matrix.

      It is an error to push a full matrix stack, or to pop a matrix stack that contains only a single matrix. In either case, the error flag is set and no other change is made to GL state.

    Throws

      GL_STACK_OVERFLOW is generated if glPushMatrix is called while the current matrix stack is full.

      GL_STACK_UNDERFLOW is generated if glPopMatrix is called while the current matrix stack contains only a single matrix.

      GL_INVALID_OPERATION is generated if glPushMatrix or glPopMatrix is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPopName

      `void glPopName()`

    Description

      The name stack is used during selection mode to allow sets of rendering commands to be uniquely identified. It consists of an ordered set of unsigned integers and is initially empty.

      glPushName causes name to be pushed onto the name stack. glPopName pops one name off the top of the stack.

      The maximum name stack depth is implementation-dependent; call GL_MAX_NAME_STACK_DEPTH to find out the value for a particular implementation. It is an error to push a name onto a full stack, or to pop a name off an empty stack. It is also an error to manipulate the name stack between the execution of glBegin and the corresponding execution of glEnd. In any of these cases, the error flag is set and no other change is made to GL state.

      The name stack is always empty while the render mode is not GL_SELECT. Calls to glPushName or glPopName while the render mode is not GL_SELECT are ignored.

    Parameter `name`

      Specifies a name that will be pushed onto the name stack.

    Throws

      GL_STACK_OVERFLOW is generated if glPushName is called while the name stack is full.

      GL_STACK_UNDERFLOW is generated if glPopName is called while the name stack is empty.

      GL_INVALID_OPERATION is generated if glPushName or glPopName is executed between a call to glBegin and the corresponding call to glEnd.

    Method glPushAttrib

      `void glPushAttrib(int mask)`

    Description

      glPushAttrib takes one argument, a mask that indicates which groups of state variables to save on the attribute stack. Symbolic constants are used to set bits in the mask. mask is typically constructed by ORing several of these constants together. The special mask GL_ALL_ATTRIB_BITS can be used to save all stackable states.

      The symbolic mask constants and their associated GL state are as follows (the second column lists which attributes are saved):

      .TS ; l l . GL_ACCUM_BUFFER_BIT Accumulation buffer clear value

      GL_COLOR_BUFFER_BIT GL_ALPHA_TEST enable bit Alpha test function and reference value GL_BLEND enable bit Blending source and destination functions Constant blend color Blending equation GL_DITHER enable bit GL_DRAW_BUFFER setting GL_COLOR_LOGIC_OP enable bit GL_INDEX_LOGIC_OP enable bit Logic op function Color mode and index mode clear values Color mode and index mode writemasks

      GL_CURRENT_BIT Current RGBA color Current color index Current normal vector Current texture coordinates Current raster position GL_CURRENT_RASTER_POSITION_VALID flag RGBA color associated with current raster position Color index associated with current raster position Texture coordinates associated with current raster position GL_EDGE_FLAG flag

      GL_DEPTH_BUFFER_BIT GL_DEPTH_TEST enable bit Depth buffer test function Depth buffer clear value GL_DEPTH_WRITEMASK enable bit

      GL_ENABLE_BIT GL_ALPHA_TEST flag GL_AUTO_NORMAL flag GL_BLEND flag Enable bits for the user-definable clipping planes GL_COLOR_MATERIAL GL_CULL_FACE flag GL_DEPTH_TEST flag GL_DITHER flag GL_FOG flag GL_LIGHT i where 0\ <= i<GL_MAX_LIGHTS GL_LIGHTING flag GL_LINE_SMOOTH flag GL_LINE_STIPPLE flag GL_COLOR_LOGIC_OP flag GL_INDEX_LOGIC_OP flag GL_MAP1_x where x is a map type GL_MAP2_x where x is a map type GL_NORMALIZE flag GL_POINT_SMOOTH flag GL_POLYGON_OFFSET_LINE flag GL_POLYGON_OFFSET_FILL flag GL_POLYGON_OFFSET_POINT flag GL_POLYGON_SMOOTH flag GL_POLYGON_STIPPLE flag GL_SCISSOR_TEST flag GL_STENCIL_TEST flag GL_TEXTURE_1D flag GL_TEXTURE_2D flag Flags GL_TEXTURE_GEN_x where x is S, T, R, or Q

      GL_EVAL_BIT GL_MAP1_x enable bits, where x is a map type GL_MAP2_x enable bits, where x is a map type 1D grid endpoints and divisions 2D grid endpoints and divisions GL_AUTO_NORMAL enable bit

      GL_FOG_BIT GL_FOG enable bit Fog color Fog density Linear fog start Linear fog end Fog index GL_FOG_MODE value

      GL_HINT_BIT GL_PERSPECTIVE_CORRECTION_HINT setting GL_POINT_SMOOTH_HINT setting GL_LINE_SMOOTH_HINT setting GL_POLYGON_SMOOTH_HINT setting GL_FOG_HINT setting

      GL_LIGHTING_BIT GL_COLOR_MATERIAL enable bit GL_COLOR_MATERIAL_FACE value Color material parameters that are tracking the current color Ambient scene color GL_LIGHT_MODEL_LOCAL_VIEWER value GL_LIGHT_MODEL_TWO_SIDE setting GL_LIGHTING enable bit Enable bit for each light Ambient, diffuse, and specular intensity for each light Direction, position, exponent, and cutoff angle for each light Constant, linear, and quadratic attenuation factors for each light Ambient, diffuse, specular, and emissive color for each material Ambient, diffuse, and specular color indices for each material Specular exponent for each material GL_SHADE_MODEL setting

      GL_LINE_BIT GL_LINE_SMOOTH flag GL_LINE_STIPPLE enable bit Line stipple pattern and repeat counter Line width

      GL_LIST_BIT GL_LIST_BASE setting

      GL_PIXEL_MODE_BIT GL_RED_BIAS and GL_RED_SCALE settings GL_GREEN_BIAS and GL_GREEN_SCALE values GL_BLUE_BIAS and GL_BLUE_SCALE GL_ALPHA_BIAS and GL_ALPHA_SCALE GL_DEPTH_BIAS and GL_DEPTH_SCALE GL_INDEX_OFFSET and GL_INDEX_SHIFT values GL_MAP_COLOR and GL_MAP_STENCIL flags GL_ZOOM_X and GL_ZOOM_Y factors GL_READ_BUFFER setting

      GL_POINT_BIT GL_POINT_SMOOTH flag Point size

      GL_POLYGON_BIT GL_CULL_FACE enable bit GL_CULL_FACE_MODE value GL_FRONT_FACE indicator GL_POLYGON_MODE setting GL_POLYGON_SMOOTH flag GL_POLYGON_STIPPLE enable bit GL_POLYGON_OFFSET_FILL flag GL_POLYGON_OFFSET_LINE flag GL_POLYGON_OFFSET_POINT flag GL_POLYGON_OFFSET_FACTOR GL_POLYGON_OFFSET_UNITS

      GL_POLYGON_STIPPLE_BIT Polygon stipple image

      GL_SCISSOR_BIT GL_SCISSOR_TEST flag Scissor box

      GL_STENCIL_BUFFER_BIT GL_STENCIL_TEST enable bit Stencil function and reference value Stencil value mask Stencil fail, pass, and depth buffer pass actions Stencil buffer clear value Stencil buffer writemask

      GL_TEXTURE_BIT Enable bits for the four texture coordinates Border color for each texture image Minification function for each texture image Magnification function for each texture image Texture coordinates and wrap mode for each texture image Color and mode for each texture environment Enable bits GL_TEXTURE_GEN_x, x is S, T, R, and Q GL_TEXTURE_GEN_MODE setting for S, T, R, and Q glTexGen plane equations for S, T, R, and Q Current texture bindings (for example, GL_TEXTURE_2D_BINDING)

      GL_TRANSFORM_BIT Coefficients of the six clipping planes Enable bits for the user-definable clipping planes GL_MATRIX_MODE value GL_NORMALIZE flag

      GL_VIEWPORT_BIT Depth range (near and far) Viewport origin and extent .TE

      glPopAttrib restores the values of the state variables saved with the last

      glPushAttrib command. Those not saved are left unchanged.

      It is an error to push attributes onto a full stack, or to pop attributes off an empty stack. In either case, the error flag is set and no other change is made to GL state.

      Initially, the attribute stack is empty.

    Parameter `mask`

      Specifies a mask that indicates which attributes to save. Values for mask are listed below.

    Throws

      GL_STACK_OVERFLOW is generated if glPushAttrib is called while the attribute stack is full.

      GL_STACK_UNDERFLOW is generated if glPopAttrib is called while the attribute stack is empty.

      GL_INVALID_OPERATION is generated if glPushAttrib or glPopAttrib is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPushClientAttrib

      `void glPushClientAttrib(int mask)`

    Description

      glPushClientAttrib takes one argument, a mask that indicates which groups of client-state variables to save on the client attribute stack. Symbolic constants are used to set bits in the mask. mask is typically constructed by OR'ing several of these constants together. The special mask GL_CLIENT_ALL_ATTRIB_BITS can be used to save all stackable client state.

      The symbolic mask constants and their associated GL client state are as follows (the second column lists which attributes are saved):

      GL_CLIENT_PIXEL_STORE_BIT Pixel storage modes

      GL_CLIENT_VERTEX_ARRAY_BIT Vertex arrays (and enables)

      glPopClientAttrib restores the values of the client-state variables saved with the last glPushClientAttrib. Those not saved are left unchanged.

      It is an error to push attributes onto a full client attribute stack, or to pop attributes off an empty stack. In either case, the error flag is set, and no other change is made to GL state.

      Initially, the client attribute stack is empty.

    Parameter `mask`

      Specifies a mask that indicates which attributes to save. Values for mask are listed below.

    Throws

      GL_STACK_OVERFLOW is generated if glPushClientAttrib is called while the attribute stack is full.

      GL_STACK_UNDERFLOW is generated if glPopClientAttrib is called while the attribute stack is empty.

    Method glPushMatrix

      `void glPushMatrix()`

    Description

      There is a stack of matrices for each of the matrix modes. In GL_MODELVIEW mode, the stack depth is at least 32. In the other two modes, GL_PROJECTION and GL_TEXTURE, the depth is at least 2. The current matrix in any mode is the matrix on the top of the stack for that mode.

      glPushMatrix pushes the current matrix stack down by one, duplicating the current matrix. That is, after a glPushMatrix call, the matrix on top of the stack is identical to the one below it.

      glPopMatrix pops the current matrix stack, replacing the current matrix with the one below it on the stack.

      Initially, each of the stacks contains one matrix, an identity matrix.

      It is an error to push a full matrix stack, or to pop a matrix stack that contains only a single matrix. In either case, the error flag is set and no other change is made to GL state.

    Throws

      GL_STACK_OVERFLOW is generated if glPushMatrix is called while the current matrix stack is full.

      GL_STACK_UNDERFLOW is generated if glPopMatrix is called while the current matrix stack contains only a single matrix.

      GL_INVALID_OPERATION is generated if glPushMatrix or glPopMatrix is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glPushName

      `void glPushName(int name)`

    Description

      The name stack is used during selection mode to allow sets of rendering commands to be uniquely identified. It consists of an ordered set of unsigned integers and is initially empty.

      glPushName causes name to be pushed onto the name stack. glPopName pops one name off the top of the stack.

      The maximum name stack depth is implementation-dependent; call GL_MAX_NAME_STACK_DEPTH to find out the value for a particular implementation. It is an error to push a name onto a full stack, or to pop a name off an empty stack. It is also an error to manipulate the name stack between the execution of glBegin and the corresponding execution of glEnd. In any of these cases, the error flag is set and no other change is made to GL state.

      The name stack is always empty while the render mode is not GL_SELECT. Calls to glPushName or glPopName while the render mode is not GL_SELECT are ignored.

    Parameter `name`

      Specifies a name that will be pushed onto the name stack.

    Throws

      GL_STACK_OVERFLOW is generated if glPushName is called while the name stack is full.

      GL_STACK_UNDERFLOW is generated if glPopName is called while the name stack is empty.

      GL_INVALID_OPERATION is generated if glPushName or glPopName is executed between a call to glBegin and the corresponding call to glEnd.

    Method glRasterPos

      `void glRasterPos(float|int x, float|int y, float|int|void z, float|int|void w)`
      `void glRasterPos(array(float|int) pos)`

    Description

      The GL maintains a 3D position in window coordinates. This position, called the raster position, is used to position pixel and bitmap write operations. It is maintained with subpixel accuracy. See glBitmap, glDrawPixels, and glCopyPixels.

      The current raster position consists of three window coordinates (x, y, z), a clip coordinate value (w), an eye coordinate distance, a valid bit, and associated color data and texture coordinates. The w coordinate is a clip coordinate, because w is not projected to window coordinates. The variable z defaults to 0 and w defaults to 1.

      The object coordinates presented by glRasterPos are treated just like those of a glVertex command: They are transformed by the current modelview and projection matrices and passed to the clipping stage. If the vertex is not culled, then it is projected and scaled to window coordinates, which become the new current raster position, and the GL_CURRENT_RASTER_POSITION_VALID flag is set. If the vertex .I is culled, then the valid bit is cleared and the current raster position and associated color and texture coordinates are undefined.

      The current raster position also includes some associated color data and texture coordinates. If lighting is enabled, then GL_CURRENT_RASTER_COLOR (in RGBA mode) or GL_CURRENT_RASTER_INDEX (in color index mode) is set to the color produced by the lighting calculation (see glLight, glLightModel, and

      glShadeModel). If lighting is disabled, current color (in RGBA mode, state variable GL_CURRENT_COLOR) or color index (in color index mode, state variable GL_CURRENT_INDEX) is used to update the current raster color.

      Likewise, GL_CURRENT_RASTER_TEXTURE_COORDS is updated as a function of GL_CURRENT_TEXTURE_COORDS, based on the texture matrix and the texture generation functions (see glTexGen). Finally, the distance from the origin of the eye coordinate system to the vertex as transformed by only the modelview matrix replaces GL_CURRENT_RASTER_DISTANCE.

      Initially, the current raster position is (0, 0, 0, 1), the current raster distance is 0, the valid bit is set, the associated RGBA color is (1, 1, 1, 1), the associated color index is 1, and the associated texture coordinates are (0, 0, 0, 1). In RGBA mode, GL_CURRENT_RASTER_INDEX is always 1; in color index mode, the current raster RGBA color always maintains its initial value.

    Parameter `x`

      Specify the x, y, z, and w object coordinates (if present) for the raster position.

    Parameter `v`

      Specifies a pointer to an array of two, three, or four elements, specifying x, y, z, and w coordinates, respectively.

    Throws

      GL_INVALID_OPERATION is generated if glRasterPos is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glReadBuffer

      `void glReadBuffer(int mode)`

    Description

      glReadBuffer specifies a color buffer as the source for subsequent glReadPixels, glCopyTexImage1D, glCopyTexImage2D, glCopyTexSubImage1D, glCopyTexSubImage2D, and glCopyPixels commands. mode accepts one of twelve or more predefined values. (GL_AUX0 through GL_AUX3 are always defined.) In a fully configured system, GL_FRONT, GL_LEFT, and GL_FRONT_LEFT all name the front left buffer, GL_FRONT_RIGHT and GL_RIGHT name the front right buffer, and GL_BACK_LEFT and GL_BACK name the back left buffer.

      Nonstereo double-buffered configurations have only a front left and a back left buffer. Single-buffered configurations have a front left and a front right buffer if stereo, and only a front left buffer if nonstereo. It is an error to specify a nonexistent buffer to glReadBuffer.

      mode is initially GL_FRONT in single-buffered configurations, and GL_BACK in double-buffered configurations.

    Parameter `mode`

      Specifies a color buffer. Accepted values are GL_FRONT_LEFT, GL_FRONT_RIGHT, GL_BACK_LEFT, GL_BACK_RIGHT, GL_FRONT, GL_BACK, GL_LEFT, GL_RIGHT, and GL_AUXi, where i is between 0 and GL_AUX_BUFFERS -1.

    Throws

      GL_INVALID_ENUM is generated if mode is not one of the twelve (or more) accepted values.

      GL_INVALID_OPERATION is generated if mode specifies a buffer that does not exist.

      GL_INVALID_OPERATION is generated if glReadBuffer is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glRenderMode

      `void glRenderMode(int mode)`

    Description

      glRenderMode sets the rasterization mode. It takes one argument, mode, which can assume one of three predefined values:

      GL_RENDER | Render mode. Primitives are rasterized, producing pixel fragments, which are written into the frame buffer. This is the normal mode and also the default mode.
      GL_SELECT | Selection mode. No pixel fragments are produced, and no change to the frame buffer contents is made. Instead, a record of the names of primitives that would have been drawn if the render mode had been GL_RENDER is returned in a select buffer, which must be created (see glSelectBuffer) before selection mode is entered.
      GL_FEEDBACK | Feedback mode. No pixel fragments are produced, and no change to the frame buffer contents is made. Instead, the coordinates and attributes of vertices that would have been drawn if the render mode had been GL_RENDER is returned in a feedback buffer, which must be created (see glFeedbackBuffer) before feedback mode is entered.

      The return value of glRenderMode is determined by the render mode at the time glRenderMode is called, rather than by mode. The values returned for the three render modes are as follows:

      GL_RENDER | 0.
      GL_SELECT | The number of hit records transferred to the select buffer.
      GL_FEEDBACK | The number of values (not vertices) transferred to the feedback buffer.

      See the glSelectBuffer and glFeedbackBuffer reference pages for more details concerning selection and feedback operation.

    Parameter `mode`

      Specifies the rasterization mode. Three values are accepted: GL_RENDER, GL_SELECT, and GL_FEEDBACK. The initial value is GL_RENDER.

    Throws

      GL_INVALID_ENUM is generated if mode is not one of the three accepted values.

      GL_INVALID_OPERATION is generated if glSelectBuffer is called while the render mode is GL_SELECT, or if glRenderMode is called with argument GL_SELECT before glSelectBuffer is called at least once.

      GL_INVALID_OPERATION is generated if glFeedbackBuffer is called while the render mode is GL_FEEDBACK, or if glRenderMode is called with argument GL_FEEDBACK before glFeedbackBuffer is called at least once.

      GL_INVALID_OPERATION is generated if glRenderMode is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glRotate

      `void glRotate(float|int|array(float|int) angle, float|int|void x, float|int|void y, float|int|void z)`

    Description

      glRotate produces a rotation of angle degrees around the vector ("x", "y", "z"). The current matrix (see glMatrixMode) is multiplied by a rotation matrix with the product replacing the current matrix, as if glMultMatrix were called with the following matrix as its argument:

      .ce .EQ left ( ~ down 20 matrix { ccol { "x" "x" (1 - c)+ c above "y" "x" (1 - c)+ "z" s above "x" "z" (1 - c)-"y" s above ~0 } ccol {"x" "y" (1 - c)-"z" s above "y" "y" (1 - c)+ c above "y" "z" (1 - c)+ "x" s above ~0 } ccol { "x" "z" (1 - c)+ "y" s above "y" "z" (1 - c)- "x" s above "z" "z" (1 - c) + c above ~0 } ccol { ~0 above ~0 above ~0 above ~1} } ~~ right ) .EN

      .sp Where c ~=~ cos("angle"), s ~=~ sine("angle"), and ||(~"x", "y", "z"~)|| ~=~ 1 (if not, the GL will normalize this vector). .sp .sp

      If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glRotate is called are rotated. Use glPushMatrix and glPopMatrix to save and restore the unrotated coordinate system.

    Parameter `angle`

      Specifies the angle of rotation, in degrees.

    Parameter `x`

      Specify the x, y, and z coordinates of a vector, respectively.

    Throws

      GL_INVALID_OPERATION is generated if glRotate is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glScale

      `void glScale(float|int|array(float|int) x, float|int|void y, float|int|void z)`

    Description

      glScale produces a nonuniform scaling along the x, y, and z axes. The three parameters indicate the desired scale factor along each of the three axes.

      The current matrix (see glMatrixMode) is multiplied by this scale matrix, and the product replaces the current matrix as if glScale were called with the following matrix as its argument:

      .ce .EQ left ( ~ down 20 matrix { ccol { ~"x" above ~0 above ~0 above ~0 } ccol { ~0 above ~"y" above ~0 above ~0 } ccol { ~0 above ~0 above ~"z" above ~0 } ccol { ~0 above ~0 above ~0 above ~1} } ~~ right ) .EN .sp If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glScale is called are scaled.

      Use glPushMatrix and glPopMatrix to save and restore the unscaled coordinate system.

    Parameter `x`

      Specify scale factors along the x, y, and z axes, respectively.

    Throws

      GL_INVALID_OPERATION is generated if glScale is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glScissor

      `void glScissor(int x, int y, int width, int height)`

    Description

      glScissor defines a rectangle, called the scissor box, in window coordinates. The first two arguments, x and y, specify the lower left corner of the box. width and height specify the width and height of the box.

      To enable and disable the scissor test, call glEnable and glDisable with argument GL_SCISSOR_TEST. The test is initially disabled. While the test is enabled, only pixels that lie within the scissor box can be modified by drawing commands. Window coordinates have integer values at the shared corners of frame buffer pixels. \f7glScissor(0,0,1,1)\fP allows modification of only the lower left pixel in the window, and \f7glScissor(0,0,0,0)\fP doesn't allow modification of any pixels in the window.

      When the scissor test is disabled, it is as though the scissor box includes the entire window.

    Parameter `x`

      Specify the lower left corner of the scissor box. Initially (0, 0).

    Parameter `width`

      Specify the width and height of the scissor box. When a GL context is first attached to a window, width and height are set to the dimensions of that window.

    Throws

      GL_INVALID_VALUE is generated if either width or height is negative.

      GL_INVALID_OPERATION is generated if glScissor is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glShadeModel

      `void glShadeModel(int mode)`

    Description

      GL primitives can have either flat or smooth shading. Smooth shading, the default, causes the computed colors of vertices to be interpolated as the primitive is rasterized, typically assigning different colors to each resulting pixel fragment. Flat shading selects the computed color of just one vertex and assigns it to all the pixel fragments generated by rasterizing a single primitive. In either case, the computed color of a vertex is the result of lighting if lighting is enabled, or it is the current color at the time the vertex was specified if lighting is disabled.

      Flat and smooth shading are indistinguishable for points. Starting when glBegin is issued and counting vertices and primitives from 1, the GL gives each flat-shaded line segment i the computed color of vertex i + 1, its second vertex. Counting similarly from 1, the GL gives each flat-shaded polygon the computed color of the vertex listed in the following table. This is the last vertex to specify the polygon in all cases except single polygons, where the first vertex specifies the flat-shaded color. .sp .TS center box; l | c . primitive type of polygon i vertex = Single polygon ( i == 1 ) 1 Triangle strip i + 2 Triangle fan i + 2 Independent triangle 3 i Quad strip 2 i + 2 Independent quad 4 i .TE .sp Flat and smooth shading are specified by glShadeModel with mode set to GL_FLAT and GL_SMOOTH, respectively.

    Parameter `mode`

      Specifies a symbolic value representing a shading technique. Accepted values are GL_FLAT and GL_SMOOTH. The initial value is GL_SMOOTH.

    Throws

      GL_INVALID_ENUM is generated if mode is any value other than GL_FLAT or GL_SMOOTH.

      GL_INVALID_OPERATION is generated if glShadeModel is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glStencilFunc

      `void glStencilFunc(int func, int ref, int mask)`

    Description

      Stenciling, like depth-buffering, enables and disables drawing on a per-pixel basis. You draw into the stencil planes using GL drawing primitives, then render geometry and images, using the stencil planes to mask out portions of the screen. Stenciling is typically used in multipass rendering algorithms to achieve special effects, such as decals, outlining, and constructive solid geometry rendering.

      The stencil test conditionally eliminates a pixel based on the outcome of a comparison between the reference value and the value in the stencil buffer. To enable and disable the test, call glEnable and glDisable with argument GL_STENCIL_TEST. To specify actions based on the outcome of the stencil test, call glStencilOp.

      func is a symbolic constant that determines the stencil comparison function. It accepts one of eight values, shown in the following list. ref is an integer reference value that is used in the stencil comparison. It is clamped to the range [0,2 sup n - 1], where n is the number of bitplanes in the stencil buffer. mask is bitwise ANDed with both the reference value and the stored stencil value, with the ANDed values participating in the comparison. .P If stencil represents the value stored in the corresponding stencil buffer location, the following list shows the effect of each comparison function that can be specified by func. Only if the comparison succeeds is the pixel passed through to the next stage in the rasterization process (see glStencilOp). All tests treat stencil values as unsigned integers in the range [0,2 sup n - 1], where n is the number of bitplanes in the stencil buffer.

      The following values are accepted by func:

      GL_NEVER | Always fails.
      GL_LESS | Passes if ( ref & mask ) < ( stencil & mask ).
      GL_LEQUAL | Passes if ( ref & mask ) \(<= ( stencil & mask ).
      GL_GREATER | Passes if ( ref & mask ) > ( stencil & mask ).
      GL_GEQUAL | Passes if ( ref & mask ) \(>= ( stencil & mask ).
      GL_EQUAL | Passes if ( ref & mask ) = ( stencil & mask ).
      GL_NOTEQUAL | Passes if ( ref & mask ) \(!= ( stencil & mask ).
      GL_ALWAYS | Always passes.

    Parameter `func`

      Specifies the test function. Eight tokens are valid: GL_NEVER, GL_LESS, GL_LEQUAL, GL_GREATER, GL_GEQUAL, GL_EQUAL, GL_NOTEQUAL, and GL_ALWAYS. The initial value is GL_ALWAYS.

    Parameter `ref`

      Specifies the reference value for the stencil test. ref is clamped to the range [0,2 sup n - 1], where n is the number of bitplanes in the stencil buffer. The initial value is 0.

    Parameter `mask`

      Specifies a mask that is ANDed with both the reference value and the stored stencil value when the test is done. The initial value is all 1's.

    Throws

      GL_INVALID_ENUM is generated if func is not one of the eight accepted values.

      GL_INVALID_OPERATION is generated if glStencilFunc is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glStencilMask

      `void glStencilMask(int mask)`

    Description

      glStencilMask controls the writing of individual bits in the stencil planes. The least significant n bits of mask, where n is the number of bits in the stencil buffer, specify a mask. Where a 1 appears in the mask, it's possible to write to the corresponding bit in the stencil buffer. Where a 0 appears, the corresponding bit is write-protected. Initially, all bits are enabled for writing.

    Parameter `mask`

      Specifies a bit mask to enable and disable writing of individual bits in the stencil planes. Initially, the mask is all 1's.

    Throws

      GL_INVALID_OPERATION is generated if glStencilMask is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glStencilOp

      `void glStencilOp(int fail, int zfail, int zpass)`

    Description

      Stenciling, like depth-buffering, enables and disables drawing on a per-pixel basis. You draw into the stencil planes using GL drawing primitives, then render geometry and images, using the stencil planes to mask out portions of the screen. Stenciling is typically used in multipass rendering algorithms to achieve special effects, such as decals, outlining, and constructive solid geometry rendering.

      The stencil test conditionally eliminates a pixel based on the outcome of a comparison between the value in the stencil buffer and a reference value. To enable and disable the test, call glEnable and glDisable with argument GL_STENCIL_TEST; to control it, call glStencilFunc.

      glStencilOp takes three arguments that indicate what happens to the stored stencil value while stenciling is enabled. If the stencil test fails, no change is made to the pixel's color or depth buffers, and fail specifies what happens to the stencil buffer contents. The following six actions are possible.

      GL_KEEP | Keeps the current value.
      GL_ZERO | Sets the stencil buffer value to 0.
      GL_REPLACE | Sets the stencil buffer value to ref, as specified by glStencilFunc.
      GL_INCR | Increments the current stencil buffer value. Clamps to the maximum representable unsigned value.
      GL_DECR | Decrements the current stencil buffer value. Clamps to 0.
      GL_INVERT | Bitwise inverts the current stencil buffer value.

      Stencil buffer values are treated as unsigned integers. When incremented and decremented, values are clamped to 0 and 2 sup n - 1, where n is the value returned by querying GL_STENCIL_BITS.

      The other two arguments to glStencilOp specify stencil buffer actions that depend on whether subsequent depth buffer tests succeed (zpass) or fail (zfail) (see

      glDepthFunc). The actions are specified using the same six symbolic constants as fail. Note that zfail is ignored when there is no depth buffer, or when the depth buffer is not enabled. In these cases, fail and zpass specify stencil action when the stencil test fails and passes, respectively.

    Parameter `fail`

      Specifies the action to take when the stencil test fails. Six symbolic constants are accepted: GL_KEEP, GL_ZERO, GL_REPLACE, GL_INCR, GL_DECR, and GL_INVERT. The initial value is GL_KEEP.

    Parameter `zfail`

      Specifies the stencil action when the stencil test passes, but the depth test fails. zfail accepts the same symbolic constants as fail. The initial value is GL_KEEP.

    Parameter `zpass`

      Specifies the stencil action when both the stencil test and the depth test pass, or when the stencil test passes and either there is no depth buffer or depth testing is not enabled. zpass accepts the same symbolic constants as fail. The initial value is GL_KEEP.

    Throws

      GL_INVALID_ENUM is generated if fail, zfail, or zpass is any value other than the six defined constant values.

      GL_INVALID_OPERATION is generated if glStencilOp is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glTexCoord

      `void glTexCoord(float|int|array(float|int) s, float|int|void t, float|int|void r, float|int|void q)`

    Description

      glTexCoord specifies texture coordinates in one, two, three, or four dimensions. glTexCoord1 sets the current texture coordinates to (s, 0, 0, 1); a call to

      glTexCoord2 sets them to (s, t, 0, 1). Similarly, glTexCoord3 specifies the texture coordinates as (s, t, r, 1), and glTexCoord4 defines all four components explicitly as (s, t, r, q).

      The current texture coordinates are part of the data that is associated with each vertex and with the current raster position. Initially, the values for s, t, r, and q are (0, 0, 0, 1).

    Parameter `s`

      Specify s, t, r, and q texture coordinates. Not all parameters are present in all forms of the command.

    Parameter `v`

      Specifies a pointer to an array of one, two, three, or four elements, which in turn specify the s, t, r, and q texture coordinates.

    Method glTexEnv

      `void glTexEnv(int target, int pname, float|int|array(float|int) param)`

    Description

      A texture environment specifies how texture values are interpreted when a fragment is textured. target must be GL_TEXTURE_ENV. pname can be either GL_TEXTURE_ENV_MODE or GL_TEXTURE_ENV_COLOR.

      If pname is GL_TEXTURE_ENV_MODE, then params is (or points to) the symbolic name of a texture function. Four texture functions may be specified: GL_MODULATE, GL_DECAL, GL_BLEND, and GL_REPLACE.

      A texture function acts on the fragment to be textured using the texture image value that applies to the fragment (see glTexParameter) and produces an RGBA color for that fragment. The following table shows how the RGBA color is produced for each of the three texture functions that can be chosen. C is a triple of color values (RGB) and A is the associated alpha value. RGBA values extracted from a texture image are in the range [0,1]. The subscript f refers to the incoming fragment, the subscript t to the texture image, the subscript c to the texture environment color, and subscript v indicates a value produced by the texture function.

      A texture image can have up to four components per texture element (see glTexImage1D, glTexImage2D, glCopyTexImage1D, and glCopyTexImage2D). In a one-component image, L sub t indicates that single component. A two-component image uses L sub t and A sub t. A three-component image has only a color value, C sub t. A four-component image has both a color value C sub t and an alpha value A sub t.

      .ne .TS center box tab(:) ; ci || ci s s s ci || c c c c c || c | c | c | c. Base internal:Texture functions format:GL_MODULATE:GL_DECAL:GL_BLEND:GL_REPLACE = GL_ALPHA:C sub v = C sub f:undefined:C sub v = C sub f:C sub v = C sub f \^ :A sub v = A sub f A sub t:\^:A sub v = A sub f:A sub v = A sub t _ GL_LUMINANCE:C sub v = L sub t C sub f:undefined:C sub v = ( 1 - L sub t ) C sub f:C sub v = L sub t 1: : :+ L sub t C sub c: : : : : : A sub v = A sub f:\^: A sub v = A sub f:A sub v = A sub f _ GL_LUMINANCE:C sub v = L sub t C sub f:undefined:C sub v = ( 1 - L sub t ) C sub f :C sub v = L sub t \_ALPHA: : : + L sub t C sub c 2: : : : :A sub v = A sub t A sub f:\^:A sub v = A sub t A sub f:A sub v = A sub t _ GL_INTENSITY:C sub v = C sub f I sub t:undefined:C sub v = ( 1 - I sub t ) C sub f :C sub v = I sub t : : :+ I sub t C sub c : : : : \^ :A sub v = A sub f I sub t:\^:A sub v = ( 1 - I sub t ) A sub f :A sub v = I sub t : : :+ I sub t A sub c: _ GL_RGB:C sub v = C sub t C sub f:C sub v = C sub t:C sub v = (1 - C sub t) C sub f :C sub v = C sub t 3: : : + C sub t C sub c : : : : :A sub v = A sub f:A sub v = A sub f:A sub v = A sub f:A sub v = A sub f _ GL_RGBA:C sub v = C sub t C sub f:C sub v = ( 1 - A sub t ) C sub f :C sub v = (1 - C sub t) C sub f :C sub v = C sub t 4: :+ A sub t C sub t: + C sub t C sub c : : : : :A sub v = A sub t A sub f:A sub v = A sub f:A sub v = A sub t A sub f:A sub v = A sub t .TE .sp If pname is GL_TEXTURE_ENV_COLOR, params is a pointer to an array that holds an RGBA color consisting of four values. Integer color components are interpreted linearly such that the most positive integer maps to 1.0, and the most negative integer maps to -1.0. The values are clamped to the range [0,1] when they are specified. C sub c takes these four values.

      GL_TEXTURE_ENV_MODE defaults to GL_MODULATE and GL_TEXTURE_ENV_COLOR defaults to (0, 0, 0, 0).

    Parameter `target`

      Specifies a texture environment. Must be GL_TEXTURE_ENV.

    Parameter `pname`

      Specifies the symbolic name of a single-valued texture environment parameter. Must be GL_TEXTURE_ENV_MODE.

    Parameter `param`

      Specifies a single symbolic constant, one of GL_MODULATE, GL_DECAL, GL_BLEND, or GL_REPLACE.

    Parameter `target`

      Specifies a texture environment. Must be GL_TEXTURE_ENV.

    Parameter `pname`

      Specifies the symbolic name of a texture environment parameter. Accepted values are GL_TEXTURE_ENV_MODE and GL_TEXTURE_ENV_COLOR.

    Parameter `params`

      Specifies a pointer to a parameter array that contains either a single symbolic constant or an RGBA color.

    Throws

      GL_INVALID_ENUM is generated when target or pname is not one of the accepted defined values, or when params should have a defined constant value (based on the value of pname) and does not.

      GL_INVALID_OPERATION is generated if glTexEnv is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glTexGen

      `void glTexGen(int coord, int pname, float|int|array(float|int) param)`

    Description

      glTexGen selects a texture-coordinate generation function or supplies coefficients for one of the functions. coord names one of the (s, t, r, q) texture coordinates; it must be one of the symbols GL_S, GL_T, GL_R, or GL_Q. pname must be one of three symbolic constants: GL_TEXTURE_GEN_MODE, GL_OBJECT_PLANE, or GL_EYE_PLANE. If pname is GL_TEXTURE_GEN_MODE, then params chooses a mode, one of GL_OBJECT_LINEAR, GL_EYE_LINEAR, or GL_SPHERE_MAP. If pname is either GL_OBJECT_PLANE or GL_EYE_PLANE, params contains coefficients for the corresponding texture generation function. .P If the texture generation function is GL_OBJECT_LINEAR, the function

      .ce g = p sub 1 x sub o + p sub 2 y sub o + p sub 3 z sub o + p sub 4 w sub o

      is used, where g is the value computed for the coordinate named in coord, p sub 1, p sub 2, p sub 3, and p sub 4 are the four values supplied in params, and x sub o, y sub o, z sub o, and w sub o are the object coordinates of the vertex. This function can be used, for example, to texture-map terrain using sea level as a reference plane (defined by p sub 1, p sub 2, p sub 3, and p sub 4). The altitude of a terrain vertex is computed by the GL_OBJECT_LINEAR coordinate generation function as its distance from sea level; that altitude can then be used to index the texture image to map white snow onto peaks and green grass onto foothills.

      If the texture generation function is GL_EYE_LINEAR, the function

      .ce g = {p sub 1} sup prime ~x sub e + {p sub 2} sup prime ~y sub e + {p sub 3} sup prime ~z sub e + {p sub 4} sup prime ~w sub e

      is used, where

      .ce $( {p sub 1} sup prime ~~{p sub 2} sup prime~~{p sub 3} sup prime~~ {{p sub 4}sup prime}) = ( p sub 1~~ p sub 2~~ p sub 3~~ p sub 4 ) ~M sup -1$

      and x sub e, y sub e, z sub e, and w sub e are the eye coordinates of the vertex, p sub 1, p sub 2, p sub 3, and p sub 4 are the values supplied in params, and M is the modelview matrix when glTexGen is invoked. If M is poorly conditioned or singular, texture coordinates generated by the resulting function may be inaccurate or undefined.

      Note that the values in params define a reference plane in eye coordinates. The modelview matrix that is applied to them may not be the same one in effect when the polygon vertices are transformed. This function establishes a field of texture coordinates that can produce dynamic contour lines on moving objects.

      If pname is GL_SPHERE_MAP and coord is either GL_S or GL_T, s and t texture coordinates are generated as follows. Let u be the unit vector pointing from the origin to the polygon vertex (in eye coordinates). Let n sup prime be the current normal, after transformation to eye coordinates. Let

      .ce f ~=~ ( f sub x~~f sub y~~f sub z ) sup T be the reflection vector such that

      .ce f ~=~ u ~-~ 2 n sup prime n sup prime sup T u

      Finally, let m ~=~ 2 sqrt { f sub x sup {~2} + f sub y sup {~2} + (f sub z + 1 ) sup 2}. Then the values assigned to the s and t texture coordinates are

      .ce 1 s ~=~ f sub x over m ~+~ 1 over 2 .sp .ce 1 t ~=~ f sub y over m ~+~ 1 over 2

      To enable or disable a texture-coordinate generation function, call glEnable or glDisable with one of the symbolic texture-coordinate names (GL_TEXTURE_GEN_S, GL_TEXTURE_GEN_T, GL_TEXTURE_GEN_R, or GL_TEXTURE_GEN_Q) as the argument. When enabled, the specified texture coordinate is computed according to the generating function associated with that coordinate. When disabled, subsequent vertices take the specified texture coordinate from the current set of texture coordinates. Initially, all texture generation functions are set to GL_EYE_LINEAR and are disabled. Both s plane equations are (1, 0, 0, 0), both t plane equations are (0, 1, 0, 0), and all r and q plane equations are (0, 0, 0, 0).

    Parameter `coord`

      Specifies a texture coordinate. Must be one of GL_S, GL_T, GL_R, or GL_Q.

    Parameter `pname`

      Specifies the symbolic name of the texture-coordinate generation function. Must be GL_TEXTURE_GEN_MODE.

    Parameter `param`

      Specifies a single-valued texture generation parameter, one of GL_OBJECT_LINEAR, GL_EYE_LINEAR, or GL_SPHERE_MAP.

    Parameter `coord`

      Specifies a texture coordinate. Must be one of GL_S, GL_T, GL_R, or GL_Q.

    Parameter `pname`

      Specifies the symbolic name of the texture-coordinate generation function or function parameters. Must be GL_TEXTURE_GEN_MODE, GL_OBJECT_PLANE, or GL_EYE_PLANE.

    Parameter `params`

      Specifies a pointer to an array of texture generation parameters. If pname is GL_TEXTURE_GEN_MODE, then the array must contain a single symbolic constant, one of GL_OBJECT_LINEAR, GL_EYE_LINEAR, or GL_SPHERE_MAP. Otherwise, params holds the coefficients for the texture-coordinate generation function specified by pname.

    Throws

      GL_INVALID_ENUM is generated when coord or pname is not an accepted defined value, or when pname is GL_TEXTURE_GEN_MODE and params is not an accepted defined value.

      GL_INVALID_ENUM is generated when pname is GL_TEXTURE_GEN_MODE, params is GL_SPHERE_MAP, and coord is either GL_R or GL_Q.

      GL_INVALID_OPERATION is generated if glTexGen is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glTexImage2D

      `void glTexImage2D(int target, int level, int internalformat, object|mapping(string:object) width, object|mapping(string:object) height, int border, object|mapping(string:object) format, object|mapping(string:object) type, array(object|mapping(string:object)) pixels)`

    Description

      Texturing maps a portion of a specified texture image onto each graphical primitive for which texturing is enabled. To enable and disable two-dimensional texturing, call glEnable and glDisable with argument GL_TEXTURE_2D.

      To define texture images, call glTexImage2D. The arguments describe the parameters of the texture image, such as height, width, width of the border, level-of-detail number (see glTexParameter), and number of color components provided. The last three arguments describe how the image is represented in memory; they are identical to the pixel formats used for glDrawPixels.

      If target is GL_PROXY_TEXTURE_2D, no data is read from pixels, but all of the texture image state is recalculated, checked for consistency, and checked against the implementation's capabilities. If the implementation cannot handle a texture of the requested texture size, it sets all of the image state to 0, but does not generate an error (see glGetError). To query for an entire mipmap array, use an image array level greater than or equal to 1. .P If target is GL_TEXTURE_2D, data is read from pixels as a sequence of signed or unsigned bytes, shorts, or longs, or single-precision floating-point values, depending on type. These values are grouped into sets of one, two, three, or four values, depending on format, to form elements. If type is GL_BITMAP, the data is considered as a string of unsigned bytes (and format must be GL_COLOR_INDEX). Each data byte is treated as eight 1-bit elements, with bit ordering determined by GL_UNPACK_LSB_FIRST (see glPixelStore).

      The first element corresponds to the lower left corner of the texture image. Subsequent elements progress left-to-right through the remaining texels in the lowest row of the texture image, and then in successively higher rows of the texture image. The final element corresponds to the upper right corner of the texture image.

      format determines the composition of each element in pixels. It can assume one of nine symbolic values:

      GL_COLOR_INDEX

      Each element is a single value, a color index. The GL converts it to fixed point (with an unspecified number of zero bits to the right of the binary point), shifted left or right depending on the value and sign of GL_INDEX_SHIFT, and added to GL_INDEX_OFFSET (see glPixelTransfer). The resulting index is converted to a set of color components using the GL_PIXEL_MAP_I_TO_R, GL_PIXEL_MAP_I_TO_G, GL_PIXEL_MAP_I_TO_B, and GL_PIXEL_MAP_I_TO_A tables, and clamped to the range [0,1].

      GL_RED | Each element is a single red component. The GL converts it to floating point and assembles it into an RGBA element by attaching 0 for green and blue, and 1 for alpha. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_GREEN | Each element is a single green component. The GL converts it to floating point and assembles it into an RGBA element by attaching 0 for red and blue, and 1 for alpha. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_BLUE | Each element is a single blue component. The GL converts it to floating point and assembles it into an RGBA element by attaching 0 for red and green, and 1 for alpha. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_ALPHA | Each element is a single alpha component. The GL converts it to floating point and assembles it into an RGBA element by attaching 0 for red, green, and blue. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_RGB | Each element is an RGB triple. The GL converts it to floating point and assembles it into an RGBA element by attaching 1 for alpha. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_RGBA | Each element contains all four components. Each component is multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_LUMINANCE | Each element is a single luminance value. The GL converts it to floating point, then assembles it into an RGBA element by replicating the luminance value three times for red, green, and blue and attaching 1 for alpha. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).
      GL_LUMINANCE_ALPHA | Each element is a luminance/alpha pair. The GL converts it to floating point, then assembles it into an RGBA element by replicating the luminance value three times for red, green, and blue. Each component is then multiplied by the signed scale factor GL_c_SCALE, added to the signed bias GL_c_BIAS, and clamped to the range [0,1] (see glPixelTransfer).

      Refer to the glDrawPixels reference page for a description of the acceptable values for the type parameter.

      If an application wants to store the texture at a certain resolution or in a certain format, it can request the resolution and format with internalformat. The GL will choose an internal representation that closely approximates that requested by internalformat, but it may not match exactly. (The representations specified by GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_RGB, and GL_RGBA must match exactly. The numeric values 1, 2, 3, and 4 may also be used to specify the above representations.)

      Use the GL_PROXY_TEXTURE_2D target to try out a resolution and format. The implementation will update and recompute its best match for the requested storage resolution and format. To then query this state, call glGetTexLevelParameter. If the texture cannot be accommodated, texture state is set to 0.

      A one-component texture image uses only the red component of the RGBA color extracted from pixels. A two-component image uses the R and A values. A three-component image uses the R, G, and B values. A four-component image uses all of the RGBA components.

    Parameter `target`

      Specifies the target texture. Must be GL_TEXTURE_2D or GL_PROXY_TEXTURE_2D.

    Parameter `level`

      Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

    Parameter `internalformat`

      Specifies the number of color components in the texture. Must be 1, 2, 3, or 4, or one of the following symbolic constants: GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_ALPHA12, GL_ALPHA16, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, GL_LUMINANCE12, GL_LUMINANCE16, GL_LUMINANCE_ALPHA, GL_LUMINANCE4_ALPHA4, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12, GL_LUMINANCE16_ALPHA16, GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8, GL_INTENSITY12, GL_INTENSITY16, GL_R3_G3_B2, GL_RGB, GL_RGB4, GL_RGB5, GL_RGB8, GL_RGB10, GL_RGB12, GL_RGB16, GL_RGBA, GL_RGBA2, GL_RGBA4, GL_RGB5_A1, GL_RGBA8, GL_RGB10_A2, GL_RGBA12, or GL_RGBA16.

    Parameter `width`

      Specifies the width of the texture image. Must be 2 sup n + 2 ( "border" ) for some integer n. All implementations support texture images that are at least 64 texels wide.

    Parameter `height`

      Specifies the height of the texture image. Must be 2 sup m + 2 ( "border" ) for some integer m. All implementations support texture images that are at least 64 texels high.

    Parameter `border`

      Specifies the width of the border. Must be either 0 or 1.

    Parameter `format`

      Specifies the format of the pixel data. The following symbolic values are accepted: GL_COLOR_INDEX, GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_RGB, GL_RGBA, GL_LUMINANCE, and GL_LUMINANCE_ALPHA.

    Parameter `type`

      Specifies the data type of the pixel data. The following symbolic values are accepted: GL_UNSIGNED_BYTE, GL_BYTE, GL_BITMAP, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, and GL_FLOAT.

    Parameter `pixels`

      Specifies a pointer to the image data in memory.

    Throws

      GL_INVALID_ENUM is generated if target is not GL_TEXTURE_2D or GL_PROXY_TEXTURE_2D.

      GL_INVALID_ENUM is generated if format is not an accepted format constant. Format constants other than GL_STENCIL_INDEX and GL_DEPTH_COMPONENT are accepted.

      GL_INVALID_ENUM is generated if type is not a type constant.

      GL_INVALID_ENUM is generated if type is GL_BITMAP and format is not GL_COLOR_INDEX.

      GL_INVALID_VALUE is generated if level is less than 0. .P .P GL_INVALID_VALUE may be generated if level is greater than $log sub 2$max, where max is the returned value of GL_MAX_TEXTURE_SIZE.

      GL_INVALID_VALUE is generated if internalformat is not 1, 2, 3, 4, or one of the accepted resolution and format symbolic constants.

      GL_INVALID_VALUE is generated if width or height is less than 0 or greater than 2 + GL_MAX_TEXTURE_SIZE, or if either cannot be represented as 2 sup k + 2("border") for some integer value of k.

      GL_INVALID_VALUE is generated if border is not 0 or 1.

      GL_INVALID_OPERATION is generated if glTexImage2D is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glTexParameter

      `void glTexParameter(int target, int pname, float|int|array(float|int) param)`

    Description

      Texture mapping is a technique that applies an image onto an object's surface as if the image were a decal or cellophane shrink-wrap. The image is created in texture space, with an (s, t) coordinate system. A texture is a one- or two-dimensional image and a set of parameters that determine how samples are derived from the image.

      glTexParameter assigns the value or values in params to the texture parameter specified as pname. target defines the target texture, either GL_TEXTURE_1D or GL_TEXTURE_2D. The following symbols are accepted in pname:

      GL_TEXTURE_MIN_FILTER

      The texture minifying function is used whenever the pixel being textured maps to an area greater than one texture element. There are six defined minifying functions. Two of them use the nearest one or nearest four texture elements to compute the texture value. The other four use mipmaps. A mipmap is an ordered set of arrays representing the same image at progressively lower resolutions. If the texture has dimensions 2 sup n times 2 sup m, there are bold max ( n, m ) + 1 mipmaps. The first mipmap is the original texture, with dimensions 2 sup n times 2 sup m. Each subsequent mipmap has dimensions 2 sup { k - 1 } times 2 sup { l - 1 }, where 2 sup k times 2 sup l are the dimensions of the previous mipmap, until either k = 0 or l=0. At that point, subsequent mipmaps have dimension 1 times 2 sup { l - 1 } or 2 sup { k - 1} times 1 until the final mipmap, which has dimension 1 times 1. To define the mipmaps, call glTexImage1D, glTexImage2D, glCopyTexImage1D, or glCopyTexImage2D with the level argument indicating the order of the mipmaps. Level 0 is the original texture; level bold max ( n, m ) is the final 1 times 1 mipmap. params supplies a function for minifying the texture as one of the following: .RS 10

      GL_NEAREST | Returns the value of the texture element that is nearest (in Manhattan distance) to the center of the pixel being textured.
      GL_LINEAR | Returns the weighted average of the four texture elements that are closest to the center of the pixel being textured. These can include border texture elements, depending on the values of GL_TEXTURE_WRAP_S and GL_TEXTURE_WRAP_T, and on the exact mapping.
      GL_NEAREST_MIPMAP_NEAREST | Chooses the mipmap that most closely matches the size of the pixel being textured and uses the GL_NEAREST criterion (the texture element nearest to the center of the pixel) to produce a texture value.
      GL_LINEAR_MIPMAP_NEAREST | Chooses the mipmap that most closely matches the size of the pixel being textured and uses the GL_LINEAR criterion (a weighted average of the four texture elements that are closest to the center of the pixel) to produce a texture value.
      GL_NEAREST_MIPMAP_LINEAR | Chooses the two mipmaps that most closely match the size of the pixel being textured and uses the GL_NEAREST criterion (the texture element nearest to the center of the pixel) to produce a texture value from each mipmap. The final texture value is a weighted average of those two values.

      GL_LINEAR_MIPMAP_LINEAR

      Chooses the two mipmaps that most closely match the size of the pixel being textured and uses the GL_LINEAR criterion (a weighted average of the four texture elements that are closest to the center of the pixel) to produce a texture value from each mipmap. The final texture value is a weighted average of those two values. .RE As more texture elements are sampled in the minification process, fewer aliasing artifacts will be apparent. While the GL_NEAREST and GL_LINEAR minification functions can be faster than the other four, they sample only one or four texture elements to determine the texture value of the pixel being rendered and can produce moire patterns or ragged transitions. The initial value of GL_TEXTURE_MIN_FILTER is GL_NEAREST_MIPMAP_LINEAR.

      GL_TEXTURE_MAG_FILTER

      The texture magnification function is used when the pixel being textured maps to an area less than or equal to one texture element. It sets the texture magnification function to either GL_NEAREST or GL_LINEAR (see below). GL_NEAREST is generally faster than GL_LINEAR, but it can produce textured images with sharper edges because the transition between texture elements is not as smooth. The initial value of GL_TEXTURE_MAG_FILTER is GL_LINEAR. .RS 10

      GL_NEAREST | Returns the value of the texture element that is nearest (in Manhattan distance) to the center of the pixel being textured.
      GL_LINEAR | Returns the weighted average of the four texture elements that are closest to the center of the pixel being textured. These can include border texture elements, depending on the values of GL_TEXTURE_WRAP_S and GL_TEXTURE_WRAP_T, and on the exact mapping.

      .RE

      GL_TEXTURE_WRAP_S

      Sets the wrap parameter for texture coordinate s to either GL_CLAMP or GL_REPEAT. GL_CLAMP causes s coordinates to be clamped to the range [0,1] and is useful for preventing wrapping artifacts when mapping a single image onto an object. GL_REPEAT causes the integer part of the s coordinate to be ignored; the GL uses only the fractional part, thereby creating a repeating pattern. Border texture elements are accessed only if wrapping is set to GL_CLAMP. Initially, GL_TEXTURE_WRAP_S is set to GL_REPEAT.

      GL_TEXTURE_WRAP_T | Sets the wrap parameter for texture coordinate t to either GL_CLAMP or GL_REPEAT. See the discussion under GL_TEXTURE_WRAP_S. Initially, GL_TEXTURE_WRAP_T is set to GL_REPEAT.
      GL_TEXTURE_BORDER_COLOR | Sets a border color. params contains four values that comprise the RGBA color of the texture border. Integer color components are interpreted linearly such that the most positive integer maps to 1.0, and the most negative integer maps to -1.0. The values are clamped to the range [0,1] when they are specified. Initially, the border color is (0, 0, 0, 0).
      GL_TEXTURE_PRIORITY | Specifies the texture residence priority of the currently bound texture. Permissible values are in the range [0,\ 1]. See glPrioritizeTextures and glBindTexture for more information.

    Parameter `target`

      Specifies the target texture, which must be either GL_TEXTURE_1D or GL_TEXTURE_2D.

    Parameter `pname`

      Specifies the symbolic name of a single-valued texture parameter. pname can be one of the following: GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, or GL_TEXTURE_PRIORITY.

    Parameter `param`

      Specifies the value of pname.

    Parameter `target`

      Specifies the target texture, which must be either GL_TEXTURE_1D or GL_TEXTURE_2D.

    Parameter `pname`

      Specifies the symbolic name of a texture parameter. pname can be one of the following: GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, GL_TEXTURE_BORDER_COLOR, or GL_TEXTURE_PRIORITY.

    Parameter `params`

      Specifies a pointer to an array where the value or values of pname are stored.

    Throws

      GL_INVALID_ENUM is generated if target or pname is not one of the accepted defined values.

      GL_INVALID_ENUM is generated if params should have a defined constant value (based on the value of pname) and does not.

      GL_INVALID_OPERATION is generated if glTexParameter is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glTexSubImage2D

      `void glTexSubImage2D(int target, int level, int xoffset, int yoffset, object|mapping(string:object) width, object|mapping(string:object) height, object|mapping(string:object) format, object|mapping(string:object) type, array(object|mapping(string:object)) pixels)`

    Description

      Texturing maps a portion of a specified texture image onto each graphical primitive for which texturing is enabled. To enable and disable two-dimensional texturing, call glEnable and glDisable with argument GL_TEXTURE_2D.

      glTexSubImage2D redefines a contiguous subregion of an existing two-dimensional texture image. The texels referenced by pixels replace the portion of the existing texture array with x indices xoffset and "xoffset"~+~"width"~-~1, inclusive, and y indices yoffset and "yoffset"~+~"height"~-~1, inclusive. This region may not include any texels outside the range of the texture array as it was originally specified. It is not an error to specify a subtexture with zero width or height, but such a specification has no effect.

    Parameter `target`

      Specifies the target texture. Must be GL_TEXTURE_2D.

    Parameter `level`

      Specifies the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

    Parameter `xoffset`

      Specifies a texel offset in the x direction within the texture array.

    Parameter `yoffset`

      Specifies a texel offset in the y direction within the texture array.

    Parameter `width`

      Specifies the width of the texture subimage.

    Parameter `height`

      Specifies the height of the texture subimage.

    Parameter `format`

      Specifies the format of the pixel data. The following symbolic values are accepted: GL_COLOR_INDEX, GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_RGB, GL_RGBA, GL_LUMINANCE, and GL_LUMINANCE_ALPHA.

    Parameter `type`

      Specifies the data type of the pixel data. The following symbolic values are accepted: GL_UNSIGNED_BYTE, GL_BYTE, GL_BITMAP, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, and GL_FLOAT.

    Parameter `pixels`

      Specifies a pointer to the image data in memory.

    Throws

      GL_INVALID_ENUM is generated if target is not GL_TEXTURE_2D.

      GL_INVALID_OPERATION is generated if the texture array has not been defined by a previous glTexImage2D operation.

      GL_INVALID_VALUE is generated if level is less than 0. .P P GL_INVALID_VALUE may be generated if level is greater than log sub 2max, where max is the returned value of GL_MAX_TEXTURE_SIZE.

      GL_INVALID_VALUE is generated if "xoffset" ~<~ ~-b, ("xoffset"~+~"width") ~>~ (w~-~b), "yoffset" ~<~ ~-b, or ("yoffset" ~+~ "height") ~>~ (h~-~b). Where w is the GL_TEXTURE_WIDTH, h is the GL_TEXTURE_HEIGHT, and b is the border width of the texture image being modified. Note that w and h include twice the border width.

      GL_INVALID_VALUE is generated if width or height is less than 0.

      GL_INVALID_ENUM is generated if format is not an accepted format constant.

      GL_INVALID_ENUM is generated if type is not a type constant.

      GL_INVALID_ENUM is generated if type is GL_BITMAP and format is not GL_COLOR_INDEX.

      GL_INVALID_OPERATION is generated if glTexSubImage2D is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glTranslate

      `void glTranslate(float|int|array(float|int) x, float|int|void y, float|int|void z)`

    Description

      glTranslate produces a translation by ("x","y","z"). The current matrix (see

      glMatrixMode) is multiplied by this translation matrix, with the product replacing the current matrix, as if glMultMatrix were called with the following matrix for its argument: .sp .ce .EQ left ( ~ down 20 matrix { ccol { 1~~ above 0~~ above 0~~ above 0~~ } ccol { 0~~ above 1~~ above 0~~ above 0~~ } ccol { 0~~ above 0~~ above 1~~ above 0~~ } ccol { "x"~ above "y"~ above "z"~ above 1} } ~~right ) .EN .sp .RE If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after a call to glTranslate are translated.

      Use glPushMatrix and glPopMatrix to save and restore the untranslated coordinate system.

    Parameter `x`

      Specify the x, y, and z coordinates of a translation vector.

    Throws

      GL_INVALID_OPERATION is generated if glTranslate is executed between the execution of glBegin and the corresponding execution of glEnd.

    Method glVertex

      `void glVertex(float|int|array(float|int) x, float|int|void y, float|int|void z, float|int|void w)`

    Description

      glVertex commands are used within glBegin/glEnd pairs to specify point, line, and polygon vertices. The current color, normal, and texture coordinates are associated with the vertex when glVertex is called.

      When only x and y are specified, z defaults to 0 and w defaults to 1. When x, y, and z are specified, w defaults to 1.

    Parameter `x`

      Specify x, y, z, and w coordinates of a vertex. Not all parameters are present in all forms of the command.

    Parameter `v`

      Specifies a pointer to an array of two, three, or four elements. The elements of a two-element array are x and y; of a three-element array, x, y, and z; and of a four-element array, x, y, z, and w.

    Method glViewport

      `void glViewport(int x, int y, int width, int height)`

    Description

      glViewport specifies the affine transformation of x and y from normalized device coordinates to window coordinates. Let (x sub nd, y sub nd) be normalized device coordinates. Then the window coordinates (x sub w, y sub w) are computed as follows: .sp .ce .EQ x sub w ~=~ ( x sub nd + 1 ) left ( "width" over 2 right ) ~+~ "x" .EN .sp .ce .EQ y sub w ~=~ ( y sub nd + 1 ) left ( "height" over 2 right ) ~+~ "y" .EN .RE

      Viewport width and height are silently clamped to a range that depends on the implementation. To query this range, call glGet with argument GL_MAX_VIEWPORT_DIMS.

    Parameter `x`

      Specify the lower left corner of the viewport rectangle, in pixels. The initial value is (0,0).

    Parameter `width`

      Specify the width and height of the viewport. When a GL context is first attached to a window, width and height are set to the dimensions of that window.

    Throws

      GL_INVALID_VALUE is generated if either width or height is negative.

      GL_INVALID_OPERATION is generated if glViewport is executed between the execution of glBegin and the corresponding execution of glEnd.

  Module GLU

    Description

      The GL Utilities module is a partial implementation of the GLU library. This module only contains functions that someone at some point actually needed to get his work done. If you need a GLU function that isn't in here, copy the C code from the GLU library (Mesa was used last time), tweak it so that it compiles as Pike code and then check it in into the CVS.

    Method gluLookAt

      `void gluLookAt(float eyex, float eyey, float eyez, float centerx, float centery, float centerz, float upx, float upy, float upz)`
      `void gluLookAt(Math.Matrix eye, Math.Matrix center, Math.Matrix up)`

    Description

      gluLookAt creates a viewing matrix derived from an eye point, a reference point indicating the center of the scene, and an up vector. The matrix maps the reference point to the negative z axis and the eye point to the origin, so that, when a typical projection matrix is used, the center of the scene maps to the center of the viewport. Similarly, the direction described by the up vector projected onto the viewing plane is mapped to the positive y axis so that it points upward in the viewport. The up vector must not be parallel to the line of sight from the eye to the reference point.

      The matrix generated by gluLookAt postmultiplies the current matrix.

      The relation between the matrix objects and the float values are

      Math.Matrix eye = Math.Matrix( ({ eyex, eyey, eyez }) );

  See also

    GL.glFrustum, gluPerspective

  Method gluOrtho2D

    `void gluOrtho2D(float left, float right, float bottom, float top)`

  Description

    gluOrtho2D sets up a two-dimensional orthographic viewing region. This is equivalent to calling

    glOrtho(left, right, bottom, top, -1.0, 1.0);

FIXME

  The GLU manual says `glOrtho(a,b,c,d, 0, 1)`.

See also

  GL.glOrtho, gluPerspective

Method gluPerspective

  `void gluPerspective(float fovy, float aspect, float zNear, float zFar)`

Description

  gluPerspective specifies a viewing frustum into the world coordinate system. In general, the aspect ratio in gluPerspective should match the aspect ratio of the associated viewport. For example, aspect = 2.0 means the viewer's angle of view is twice as wide in x as it is in y. If the viewport is twice as wide as it is tall, it displays the image without distortion.

  The matrix generated by gluPerspective is multipled by the current matrix, just as if GL.glMultMatrix were called with the generated matrix. To load the perspective matrix onto the current matrix stack instead, precede the call to gluPerspective with a call to GL.glLoadIdentity.

Method gluPickMatrix

  `void gluPickMatrix(float x, float y, float width, float height, array(int) viewport)`

Description

  gluPickMatrix creates a projection matrix that can be used to restrict drawing to a small region of the viewport. This is typically useful to determine what objects are being drawn near the cursor. Use gluPickMatrix to restrict drawing to a small region around the cursor. Then, enter selection mode (with GL.glRenderMode and rerender the scene. All primitives that would have been drawn near the cursor are identified and stored in the selection buffer.

  The matrix created by gluPickMatrix is multiplied by the current matrix just as if GL.glMultMatrix is called with the generated matrix. To effectively use the generated pick matrix for picking, first call GL.glLoadIdentity to load an identity matrix onto the perspective matrix stack. Then call gluPickMatrix, and finally, call a command (such as gluPerspective) to multiply the perspective matrix by the pick matrix.

  When using gluPickMatrix to pick NURBS, be careful to turn off the NURBS property GLU_AUTO_LOAD_MATRIX. If GLU_AUTO_LOAD_MATRIX is not turned off, then any NURBS surface rendered is subdivided differently with the pick matrix than the way it was subdivided without the pick matrix.

Parameter `viewport`

  The viewport is an array with four integers.

FIXME

  Does the NURB remark apply?

See also

  GL.glGet, gluLoadIdentity, gluMultMatrix, gluRenderMode, gluPerspective

Method gluProject

  `array(float) gluProject(float objx, float objy, float objz, array(float) model, array(float) proj, array(int) viewport)`

Description

  gluProject transforms the specified object coordinates into window coordinates using model, proj, and viewport. The result is returned in a three valued array.

Module GLUT

  Constant GLUT_ACCUM

    `constant GLUT.GLUT_ACCUM`

  Constant GLUT_ACTIVE_ALT

    `constant GLUT.GLUT_ACTIVE_ALT`

  Constant GLUT_ACTIVE_CTRL

    `constant GLUT.GLUT_ACTIVE_CTRL`

  Constant GLUT_ACTIVE_SHIFT

    `constant GLUT.GLUT_ACTIVE_SHIFT`

  Constant GLUT_ALPHA

    `constant GLUT.GLUT_ALPHA`

  Constant GLUT_BLUE

    `constant GLUT.GLUT_BLUE`

  Constant GLUT_CURSOR_BOTTOM_LEFT_CORNER

    `constant GLUT.GLUT_CURSOR_BOTTOM_LEFT_CORNER`

  Constant GLUT_CURSOR_BOTTOM_RIGHT_CORNER

    `constant GLUT.GLUT_CURSOR_BOTTOM_RIGHT_CORNER`

  Constant GLUT_CURSOR_BOTTOM_SIDE

    `constant GLUT.GLUT_CURSOR_BOTTOM_SIDE`

  Constant GLUT_CURSOR_CROSSHAIR

    `constant GLUT.GLUT_CURSOR_CROSSHAIR`

  Constant GLUT_CURSOR_CYCLE

    `constant GLUT.GLUT_CURSOR_CYCLE`

  Constant GLUT_CURSOR_DESTROY

    `constant GLUT.GLUT_CURSOR_DESTROY`

  Constant GLUT_CURSOR_FULL_CROSSHAIR

    `constant GLUT.GLUT_CURSOR_FULL_CROSSHAIR`

  Constant GLUT_CURSOR_HELP

    `constant GLUT.GLUT_CURSOR_HELP`

  Constant GLUT_CURSOR_INFO

    `constant GLUT.GLUT_CURSOR_INFO`

  Constant GLUT_CURSOR_INHERIT

    `constant GLUT.GLUT_CURSOR_INHERIT`

  Constant GLUT_CURSOR_LEFT_ARROW

    `constant GLUT.GLUT_CURSOR_LEFT_ARROW`

  Constant GLUT_CURSOR_LEFT_RIGHT

    `constant GLUT.GLUT_CURSOR_LEFT_RIGHT`

  Constant GLUT_CURSOR_LEFT_SIDE

    `constant GLUT.GLUT_CURSOR_LEFT_SIDE`

  Constant GLUT_CURSOR_NONE

    `constant GLUT.GLUT_CURSOR_NONE`

  Constant GLUT_CURSOR_RIGHT_ARROW

    `constant GLUT.GLUT_CURSOR_RIGHT_ARROW`

  Constant GLUT_CURSOR_RIGHT_SIDE

    `constant GLUT.GLUT_CURSOR_RIGHT_SIDE`

  Constant GLUT_CURSOR_SPRAY

    `constant GLUT.GLUT_CURSOR_SPRAY`

  Constant GLUT_CURSOR_TEXT

    `constant GLUT.GLUT_CURSOR_TEXT`

  Constant GLUT_CURSOR_TOP_LEFT_CORNER

    `constant GLUT.GLUT_CURSOR_TOP_LEFT_CORNER`

  Constant GLUT_CURSOR_TOP_RIGHT_CORNER

    `constant GLUT.GLUT_CURSOR_TOP_RIGHT_CORNER`

  Constant GLUT_CURSOR_TOP_SIDE

    `constant GLUT.GLUT_CURSOR_TOP_SIDE`

  Constant GLUT_CURSOR_UP_DOWN

    `constant GLUT.GLUT_CURSOR_UP_DOWN`

  Constant GLUT_CURSOR_WAIT

    `constant GLUT.GLUT_CURSOR_WAIT`

  Constant GLUT_DEPTH

    `constant GLUT.GLUT_DEPTH`

  Constant GLUT_DEVICE_IGNORE_KEY_REPEAT

    `constant GLUT.GLUT_DEVICE_IGNORE_KEY_REPEAT`

  Constant GLUT_DEVICE_KEY_REPEAT

    `constant GLUT.GLUT_DEVICE_KEY_REPEAT`

  Constant GLUT_DISPLAY_MODE_POSSIBLE

    `constant GLUT.GLUT_DISPLAY_MODE_POSSIBLE`

  Constant GLUT_DOUBLE

    `constant GLUT.GLUT_DOUBLE`

  Constant GLUT_DOWN

    `constant GLUT.GLUT_DOWN`

  Constant GLUT_ELAPSED_TIME

    `constant GLUT.GLUT_ELAPSED_TIME`

  Constant GLUT_ENTERED

    `constant GLUT.GLUT_ENTERED`

  Constant GLUT_FULLY_COVERED

    `constant GLUT.GLUT_FULLY_COVERED`

  Constant GLUT_FULLY_RETAINED

    `constant GLUT.GLUT_FULLY_RETAINED`

  Constant GLUT_GAME_MODE_ACTIVE

    `constant GLUT.GLUT_GAME_MODE_ACTIVE`

  Constant GLUT_GAME_MODE_DISPLAY_CHANGED

    `constant GLUT.GLUT_GAME_MODE_DISPLAY_CHANGED`

  Constant GLUT_GAME_MODE_HEIGHT

    `constant GLUT.GLUT_GAME_MODE_HEIGHT`

  Constant GLUT_GAME_MODE_PIXEL_DEPTH

    `constant GLUT.GLUT_GAME_MODE_PIXEL_DEPTH`

  Constant GLUT_GAME_MODE_POSSIBLE

    `constant GLUT.GLUT_GAME_MODE_POSSIBLE`

  Constant GLUT_GAME_MODE_REFRESH_RATE

    `constant GLUT.GLUT_GAME_MODE_REFRESH_RATE`

  Constant GLUT_GAME_MODE_WIDTH

    `constant GLUT.GLUT_GAME_MODE_WIDTH`

  Constant GLUT_GREEN

    `constant GLUT.GLUT_GREEN`

  Constant GLUT_HAS_DIAL_AND_BUTTON_BOX

    `constant GLUT.GLUT_HAS_DIAL_AND_BUTTON_BOX`

  Constant GLUT_HAS_JOYSTICK

    `constant GLUT.GLUT_HAS_JOYSTICK`

  Constant GLUT_HAS_KEYBOARD

    `constant GLUT.GLUT_HAS_KEYBOARD`

  Constant GLUT_HAS_MOUSE

    `constant GLUT.GLUT_HAS_MOUSE`

  Constant GLUT_HAS_OVERLAY

    `constant GLUT.GLUT_HAS_OVERLAY`

  Constant GLUT_HAS_SPACEBALL

    `constant GLUT.GLUT_HAS_SPACEBALL`

  Constant GLUT_HAS_TABLET

    `constant GLUT.GLUT_HAS_TABLET`

  Constant GLUT_HIDDEN

    `constant GLUT.GLUT_HIDDEN`

  Constant GLUT_INDEX

    `constant GLUT.GLUT_INDEX`

  Constant GLUT_INIT_DISPLAY_MODE

    `constant GLUT.GLUT_INIT_DISPLAY_MODE`

  Constant GLUT_INIT_WINDOW_HEIGHT

    `constant GLUT.GLUT_INIT_WINDOW_HEIGHT`

  Constant GLUT_INIT_WINDOW_WIDTH

    `constant GLUT.GLUT_INIT_WINDOW_WIDTH`

  Constant GLUT_INIT_WINDOW_X

    `constant GLUT.GLUT_INIT_WINDOW_X`

  Constant GLUT_INIT_WINDOW_Y

    `constant GLUT.GLUT_INIT_WINDOW_Y`

  Constant GLUT_JOYSTICK_AXES

    `constant GLUT.GLUT_JOYSTICK_AXES`

  Constant GLUT_JOYSTICK_BUTTONS

    `constant GLUT.GLUT_JOYSTICK_BUTTONS`

  Constant GLUT_JOYSTICK_BUTTON_A

    `constant GLUT.GLUT_JOYSTICK_BUTTON_A`

  Constant GLUT_JOYSTICK_BUTTON_B

    `constant GLUT.GLUT_JOYSTICK_BUTTON_B`

  Constant GLUT_JOYSTICK_BUTTON_C

    `constant GLUT.GLUT_JOYSTICK_BUTTON_C`

  Constant GLUT_JOYSTICK_BUTTON_D

    `constant GLUT.GLUT_JOYSTICK_BUTTON_D`

  Constant GLUT_JOYSTICK_POLL_RATE

    `constant GLUT.GLUT_JOYSTICK_POLL_RATE`

  Constant GLUT_KEY_DOWN

    `constant GLUT.GLUT_KEY_DOWN`

  Constant GLUT_KEY_END

    `constant GLUT.GLUT_KEY_END`

  Constant GLUT_KEY_F1

    `constant GLUT.GLUT_KEY_F1`

  Constant GLUT_KEY_F10

    `constant GLUT.GLUT_KEY_F10`

  Constant GLUT_KEY_F11

    `constant GLUT.GLUT_KEY_F11`

  Constant GLUT_KEY_F12

    `constant GLUT.GLUT_KEY_F12`

  Constant GLUT_KEY_F2

    `constant GLUT.GLUT_KEY_F2`

  Constant GLUT_KEY_F3

    `constant GLUT.GLUT_KEY_F3`

  Constant GLUT_KEY_F4

    `constant GLUT.GLUT_KEY_F4`

  Constant GLUT_KEY_F5

    `constant GLUT.GLUT_KEY_F5`

  Constant GLUT_KEY_F6

    `constant GLUT.GLUT_KEY_F6`

  Constant GLUT_KEY_F7

    `constant GLUT.GLUT_KEY_F7`

  Constant GLUT_KEY_F8

    `constant GLUT.GLUT_KEY_F8`

  Constant GLUT_KEY_F9

    `constant GLUT.GLUT_KEY_F9`

  Constant GLUT_KEY_HOME

    `constant GLUT.GLUT_KEY_HOME`

  Constant GLUT_KEY_INSERT

    `constant GLUT.GLUT_KEY_INSERT`

  Constant GLUT_KEY_LEFT

    `constant GLUT.GLUT_KEY_LEFT`

  Constant GLUT_KEY_PAGE_DOWN

    `constant GLUT.GLUT_KEY_PAGE_DOWN`

  Constant GLUT_KEY_PAGE_UP

    `constant GLUT.GLUT_KEY_PAGE_UP`

  Constant GLUT_KEY_REPEAT_DEFAULT

    `constant GLUT.GLUT_KEY_REPEAT_DEFAULT`

  Constant GLUT_KEY_REPEAT_OFF

    `constant GLUT.GLUT_KEY_REPEAT_OFF`

  Constant GLUT_KEY_REPEAT_ON

    `constant GLUT.GLUT_KEY_REPEAT_ON`

  Constant GLUT_KEY_RIGHT

    `constant GLUT.GLUT_KEY_RIGHT`

  Constant GLUT_KEY_UP

    `constant GLUT.GLUT_KEY_UP`

  Constant GLUT_LAYER_IN_USE

    `constant GLUT.GLUT_LAYER_IN_USE`

  Constant GLUT_LEFT

    `constant GLUT.GLUT_LEFT`

  Constant GLUT_LEFT_BUTTON

    `constant GLUT.GLUT_LEFT_BUTTON`

  Constant GLUT_LUMINANCE

    `constant GLUT.GLUT_LUMINANCE`

  Constant GLUT_MENU_IN_USE

    `constant GLUT.GLUT_MENU_IN_USE`

  Constant GLUT_MENU_NOT_IN_USE

    `constant GLUT.GLUT_MENU_NOT_IN_USE`

  Constant GLUT_MENU_NUM_ITEMS

    `constant GLUT.GLUT_MENU_NUM_ITEMS`

  Constant GLUT_MIDDLE_BUTTON

    `constant GLUT.GLUT_MIDDLE_BUTTON`

  Constant GLUT_MULTISAMPLE

    `constant GLUT.GLUT_MULTISAMPLE`

  Constant GLUT_NORMAL

    `constant GLUT.GLUT_NORMAL`

  Constant GLUT_NORMAL_DAMAGED

    `constant GLUT.GLUT_NORMAL_DAMAGED`

  Constant GLUT_NOT_VISIBLE

    `constant GLUT.GLUT_NOT_VISIBLE`

  Constant GLUT_NUM_BUTTON_BOX_BUTTONS

    `constant GLUT.GLUT_NUM_BUTTON_BOX_BUTTONS`

  Constant GLUT_NUM_DIALS

    `constant GLUT.GLUT_NUM_DIALS`

  Constant GLUT_NUM_MOUSE_BUTTONS

    `constant GLUT.GLUT_NUM_MOUSE_BUTTONS`

  Constant GLUT_NUM_SPACEBALL_BUTTONS

    `constant GLUT.GLUT_NUM_SPACEBALL_BUTTONS`

  Constant GLUT_NUM_TABLET_BUTTONS

    `constant GLUT.GLUT_NUM_TABLET_BUTTONS`

  Constant GLUT_OVERLAY

    `constant GLUT.GLUT_OVERLAY`

  Constant GLUT_OVERLAY_DAMAGED

    `constant GLUT.GLUT_OVERLAY_DAMAGED`

  Constant GLUT_OVERLAY_POSSIBLE

    `constant GLUT.GLUT_OVERLAY_POSSIBLE`

  Constant GLUT_OWNS_JOYSTICK

    `constant GLUT.GLUT_OWNS_JOYSTICK`

  Constant GLUT_PARTIALLY_RETAINED

    `constant GLUT.GLUT_PARTIALLY_RETAINED`

  Constant GLUT_RED

    `constant GLUT.GLUT_RED`

  Constant GLUT_RGB

    `constant GLUT.GLUT_RGB`

  Constant GLUT_RGBA

    `constant GLUT.GLUT_RGBA`

  Constant GLUT_RIGHT_BUTTON

    `constant GLUT.GLUT_RIGHT_BUTTON`

  Constant GLUT_SCREEN_HEIGHT

    `constant GLUT.GLUT_SCREEN_HEIGHT`

  Constant GLUT_SCREEN_HEIGHT_MM

    `constant GLUT.GLUT_SCREEN_HEIGHT_MM`

  Constant GLUT_SCREEN_WIDTH

    `constant GLUT.GLUT_SCREEN_WIDTH`

  Constant GLUT_SCREEN_WIDTH_MM

    `constant GLUT.GLUT_SCREEN_WIDTH_MM`

  Constant GLUT_SINGLE

    `constant GLUT.GLUT_SINGLE`

  Constant GLUT_STENCIL

    `constant GLUT.GLUT_STENCIL`

  Constant GLUT_STEREO

    `constant GLUT.GLUT_STEREO`

  Constant GLUT_TRANSPARENT_INDEX

    `constant GLUT.GLUT_TRANSPARENT_INDEX`

  Constant GLUT_UP

    `constant GLUT.GLUT_UP`

  Constant GLUT_VIDEO_RESIZE_HEIGHT

    `constant GLUT.GLUT_VIDEO_RESIZE_HEIGHT`

  Constant GLUT_VIDEO_RESIZE_HEIGHT_DELTA

    `constant GLUT.GLUT_VIDEO_RESIZE_HEIGHT_DELTA`

  Constant GLUT_VIDEO_RESIZE_IN_USE

    `constant GLUT.GLUT_VIDEO_RESIZE_IN_USE`

  Constant GLUT_VIDEO_RESIZE_POSSIBLE

    `constant GLUT.GLUT_VIDEO_RESIZE_POSSIBLE`

  Constant GLUT_VIDEO_RESIZE_WIDTH

    `constant GLUT.GLUT_VIDEO_RESIZE_WIDTH`

  Constant GLUT_VIDEO_RESIZE_WIDTH_DELTA

    `constant GLUT.GLUT_VIDEO_RESIZE_WIDTH_DELTA`

  Constant GLUT_VIDEO_RESIZE_X

    `constant GLUT.GLUT_VIDEO_RESIZE_X`

  Constant GLUT_VIDEO_RESIZE_X_DELTA

    `constant GLUT.GLUT_VIDEO_RESIZE_X_DELTA`

  Constant GLUT_VIDEO_RESIZE_Y

    `constant GLUT.GLUT_VIDEO_RESIZE_Y`

  Constant GLUT_VIDEO_RESIZE_Y_DELTA

    `constant GLUT.GLUT_VIDEO_RESIZE_Y_DELTA`

  Constant GLUT_VISIBLE

    `constant GLUT.GLUT_VISIBLE`

  Constant GLUT_WINDOW_ACCUM_ALPHA_SIZE

    `constant GLUT.GLUT_WINDOW_ACCUM_ALPHA_SIZE`

  Constant GLUT_WINDOW_ACCUM_BLUE_SIZE

    `constant GLUT.GLUT_WINDOW_ACCUM_BLUE_SIZE`

  Constant GLUT_WINDOW_ACCUM_GREEN_SIZE

    `constant GLUT.GLUT_WINDOW_ACCUM_GREEN_SIZE`

  Constant GLUT_WINDOW_ACCUM_RED_SIZE

    `constant GLUT.GLUT_WINDOW_ACCUM_RED_SIZE`

  Constant GLUT_WINDOW_ALPHA_SIZE

    `constant GLUT.GLUT_WINDOW_ALPHA_SIZE`

  Constant GLUT_WINDOW_BLUE_SIZE

    `constant GLUT.GLUT_WINDOW_BLUE_SIZE`

  Constant GLUT_WINDOW_BUFFER_SIZE

    `constant GLUT.GLUT_WINDOW_BUFFER_SIZE`

  Constant GLUT_WINDOW_COLORMAP_SIZE

    `constant GLUT.GLUT_WINDOW_COLORMAP_SIZE`

  Constant GLUT_WINDOW_CURSOR

    `constant GLUT.GLUT_WINDOW_CURSOR`

  Constant GLUT_WINDOW_DEPTH_SIZE

    `constant GLUT.GLUT_WINDOW_DEPTH_SIZE`

  Constant GLUT_WINDOW_DOUBLEBUFFER

    `constant GLUT.GLUT_WINDOW_DOUBLEBUFFER`

  Constant GLUT_WINDOW_FORMAT_ID

    `constant GLUT.GLUT_WINDOW_FORMAT_ID`

  Constant GLUT_WINDOW_GREEN_SIZE

    `constant GLUT.GLUT_WINDOW_GREEN_SIZE`

  Constant GLUT_WINDOW_HEIGHT

    `constant GLUT.GLUT_WINDOW_HEIGHT`

  Constant GLUT_WINDOW_NUM_CHILDREN

    `constant GLUT.GLUT_WINDOW_NUM_CHILDREN`

  Constant GLUT_WINDOW_NUM_SAMPLES

    `constant GLUT.GLUT_WINDOW_NUM_SAMPLES`

  Constant GLUT_WINDOW_PARENT

    `constant GLUT.GLUT_WINDOW_PARENT`

  Constant GLUT_WINDOW_RED_SIZE

    `constant GLUT.GLUT_WINDOW_RED_SIZE`

  Constant GLUT_WINDOW_RGBA

    `constant GLUT.GLUT_WINDOW_RGBA`

  Constant GLUT_WINDOW_STENCIL_SIZE

    `constant GLUT.GLUT_WINDOW_STENCIL_SIZE`

  Constant GLUT_WINDOW_STEREO

    `constant GLUT.GLUT_WINDOW_STEREO`

  Constant GLUT_WINDOW_WIDTH

    `constant GLUT.GLUT_WINDOW_WIDTH`

  Constant GLUT_WINDOW_X

    `constant GLUT.GLUT_WINDOW_X`

  Constant GLUT_WINDOW_Y

    `constant GLUT.GLUT_WINDOW_Y`

  Method glutAddMenuEntry

    `void glutAddMenuEntry(string, int)`

  Method glutAddSubMenu

    `void glutAddSubMenu(string, int)`

  Method glutAttachMenu

    `void glutAttachMenu(int)`

  Method glutButtonBoxFunc

    `void glutButtonBoxFunc(function(:void))`

  Method glutChangeToMenuEntry

    `void glutChangeToMenuEntry(int, string, int)`

  Method glutChangeToSubMenu

    `void glutChangeToSubMenu(int, string, int)`

  Method glutCopyColormap

    `void glutCopyColormap(int)`

  Method glutCreateMenu

    `int glutCreateMenu(function(:void))`

  Method glutCreateSubWindow

    `int glutCreateSubWindow(int, int, int, int, int)`

  Method glutCreateWindow

    `int glutCreateWindow(string)`

  Method glutDestroyMenu

    `void glutDestroyMenu(int)`

  Method glutDestroyWindow

    `void glutDestroyWindow(int)`

  Method glutDetachMenu

    `void glutDetachMenu(int)`

  Method glutDeviceGet

    `int glutDeviceGet(int)`

  Method glutDialsFunc

    `void glutDialsFunc(function(:void))`

  Method glutDisplayFunc

    `void glutDisplayFunc(function(:void))`

  Method glutEnterGameMode

    `int glutEnterGameMode()`

  Method glutEntryFunc

    `void glutEntryFunc(function(:void))`

  Method glutEstablishOverlay

    `void glutEstablishOverlay()`

  Method glutExtensionSupported

    `int glutExtensionSupported(string)`

  Method glutForceJoystickFunc

    `void glutForceJoystickFunc()`

  Method glutFullScreen

    `void glutFullScreen()`

  Method glutGameModeGet

    `int glutGameModeGet(int)`

  Method glutGameModeString

    `void glutGameModeString(string)`

  Method glutGet

    `int glutGet(int)`

  Method glutGetColor

    `float glutGetColor(int, int)`

  Method glutGetMenu

    `int glutGetMenu()`

  Method glutGetModifiers

    `int glutGetModifiers()`

  Method glutGetWindow

    `int glutGetWindow()`

  Method glutHideOverlay

    `void glutHideOverlay()`

  Method glutHideWindow

    `void glutHideWindow()`

  Method glutIconifyWindow

    `void glutIconifyWindow()`

  Method glutIdleFunc

    `void glutIdleFunc(function(:void))`

  Method glutIgnoreKeyRepeat

    `void glutIgnoreKeyRepeat(int)`

  Method glutInitDisplayMode

    `void glutInitDisplayMode(int)`

  Method glutInitDisplayString

    `void glutInitDisplayString(string)`

  Method glutInitWindowPosition

    `void glutInitWindowPosition(int, int)`

  Method glutInitWindowSize

    `void glutInitWindowSize(int, int)`

  Method glutJoystickFunc

    `void glutJoystickFunc(function(:void), int)`

  Method glutKeyboardFunc

    `void glutKeyboardFunc(function(:void))`

  Method glutKeyboardUpFunc

    `void glutKeyboardUpFunc(function(:void))`

  Method glutLayerGet

    `int glutLayerGet(int)`

  Method glutLeaveGameMode

    `void glutLeaveGameMode()`

  Method glutMainLoop

    `void glutMainLoop()`

  Method glutMenuStateFunc

    `void glutMenuStateFunc(function(:void))`

  Method glutMenuStatusFunc

    `void glutMenuStatusFunc(function(:void))`

  Method glutMotionFunc

    `void glutMotionFunc(function(:void))`

  Method glutMouseFunc

    `void glutMouseFunc(function(:void))`

  Method glutOverlayDisplayFunc

    `void glutOverlayDisplayFunc(function(:void))`

  Method glutPassiveMotionFunc

    `void glutPassiveMotionFunc(function(:void))`

  Method glutPopWindow

    `void glutPopWindow()`

  Method glutPositionWindow

    `void glutPositionWindow(int, int)`

  Method glutPostOverlayRedisplay

    `void glutPostOverlayRedisplay()`

  Method glutPostRedisplay

    `void glutPostRedisplay()`

  Method glutPostWindowOverlayRedisplay

    `void glutPostWindowOverlayRedisplay(int)`

  Method glutPostWindowRedisplay

    `void glutPostWindowRedisplay(int)`

  Method glutPushWindow

    `void glutPushWindow()`

  Method glutRemoveMenuItem

    `void glutRemoveMenuItem(int)`

  Method glutRemoveOverlay

    `void glutRemoveOverlay()`

  Method glutReportErrors

    `void glutReportErrors()`

  Method glutReshapeFunc

    `void glutReshapeFunc(function(:void))`

  Method glutReshapeWindow

    `void glutReshapeWindow(int, int)`

  Method glutSetColor

    `void glutSetColor(int, float, float, float)`

  Method glutSetCursor

    `void glutSetCursor(int)`

  Method glutSetIconTitle

    `void glutSetIconTitle(string)`

  Method glutSetKeyRepeat

    `void glutSetKeyRepeat(int)`

  Method glutSetMenu

    `void glutSetMenu(int)`

  Method glutSetWindow

    `void glutSetWindow(int)`

  Method glutSetWindowTitle

    `void glutSetWindowTitle(string)`

  Method glutSetupVideoResizing

    `void glutSetupVideoResizing()`

  Method glutShowOverlay

    `void glutShowOverlay()`

  Method glutShowWindow

    `void glutShowWindow()`

  Method glutSolidCone

    `void glutSolidCone(float, float, int, int)`

  Method glutSolidCube

    `void glutSolidCube(float)`

  Method glutSolidDodecahedron

    `void glutSolidDodecahedron()`

  Method glutSolidIcosahedron

    `void glutSolidIcosahedron()`

  Method glutSolidOctahedron

    `void glutSolidOctahedron()`

  Method glutSolidSphere

    `void glutSolidSphere(float, int, int)`

  Method glutSolidTeapot

    `void glutSolidTeapot(float)`

  Method glutSolidTetrahedron

    `void glutSolidTetrahedron()`

  Method glutSolidTorus

    `void glutSolidTorus(float, float, int, int)`

  Method glutSpaceballButtonFunc

    `void glutSpaceballButtonFunc(function(:void))`

  Method glutSpaceballMotionFunc

    `void glutSpaceballMotionFunc(function(:void))`

  Method glutSpaceballRotateFunc

    `void glutSpaceballRotateFunc(function(:void))`

  Method glutSpecialFunc

    `void glutSpecialFunc(function(:void))`

  Method glutSpecialUpFunc

    `void glutSpecialUpFunc(function(:void))`

  Method glutStopVideoResizing

    `void glutStopVideoResizing()`

  Method glutSwapBuffers

    `void glutSwapBuffers()`

  Method glutTabletButtonFunc

    `void glutTabletButtonFunc(function(:void))`

  Method glutTabletMotionFunc

    `void glutTabletMotionFunc(function(:void))`

  Method glutTimerFunc

    `void glutTimerFunc(int, function(:void), int)`

  Method glutUseLayer

    `void glutUseLayer(int)`

  Method glutVideoPan

    `void glutVideoPan(int, int, int, int)`

  Method glutVideoResize

    `void glutVideoResize(int, int, int, int)`

  Method glutVideoResizeGet

    `int glutVideoResizeGet(int)`

  Method glutVisibilityFunc

    `void glutVisibilityFunc(function(:void))`

  Method glutWarpPointer

    `void glutWarpPointer(int, int)`

  Method glutWindowStatusFunc

    `void glutWindowStatusFunc(function(:void))`

  Method glutWireCone

    `void glutWireCone(float, float, int, int)`

  Method glutWireCube

    `void glutWireCube(float)`

  Method glutWireDodecahedron

    `void glutWireDodecahedron()`

  Method glutWireIcosahedron

    `void glutWireIcosahedron()`

  Method glutWireOctahedron

    `void glutWireOctahedron()`

  Method glutWireSphere

    `void glutWireSphere(float, int, int)`

  Method glutWireTeapot

    `void glutWireTeapot(float)`

  Method glutWireTetrahedron

    `void glutWireTetrahedron()`

  Method glutWireTorus

    `void glutWireTorus(float, float, int, int)`