Here is a list of all documented class members with links to the class documentation for each member:

### - u -

- SoUnits() : SoUnits
- Source : SoTextureCombine
- SourceType : SoShaderObject
- uKnotVector : SoIndexedNurbsSurface, SoNurbsSurface
- ulf : SbViewVolume
- uniqueId : SoNode
- uniquify() : SoPathList
- unit : SoTextureUnit
- Units : SoUnits, SoUnitsElement
- units : SoPolygonOffset, SoUnits
- UNKNOWN : SoButtonEvent
- UNKNOWN_FACE_TYPE : SoShapeHints
- UNKNOWN_ORDERING : SoShapeHints
- UNKNOWN_SHAPE_TYPE : SoShapeHints
- UNPICKABLE : SoPickStyle
- unref() : SoBase, SoCache, SoGLBigImage, SoGLCubeMapImage, SoGLDisplayList, SoGLImage, SoGlyph
- unrefNoDelete() : SoBase
- unrefOldDL() : SoGLBigImage, SoGLImage
- unregisterChildDragger() : SoDragger
- unregisterChildDraggerMovingIndependently() : SoDragger
- unschedule() : SoDelayQueueSensor, SoSensor, SoTimerQueueSensor, SoTimerSensor
- unsquishKnobs() : SoTransformerManip
- UNTIL_LOADED : SoVRMLInline, SoWWWInline
- UP : SoButtonEvent
- UPDATE() : SoScXMLDollyTarget
- updateChildList() : SoVRMLParent
- updateDraggerCache() : SoDragger
- updateMySurroundParams() : SoSurroundScale
- updateParameter() : SoShaderParameter1f, SoShaderParameter1i, SoShaderParameter2f, SoShaderParameter2i, SoShaderParameter3f, SoShaderParameter3i, SoShaderParameter4f, SoShaderParameter4i, SoShaderParameterArray1f, SoShaderParameterArray1i, SoShaderParameterArray2f, SoShaderParameterArray2i, SoShaderParameterArray3f, SoShaderParameterArray3i, SoShaderParameterArray4f, SoShaderParameterArray4i, SoShaderParameterMatrix, SoShaderParameterMatrixArray, SoShaderStateMatrixParameter, SoUniformShaderParameter
- updateParameters() : SoShaderObject
- updateValue() : SoShaderStateMatrixParameter
- upper() : SbString
- url : SoVRMLAnchor, SoVRMLAudioClip, SoVRMLMovieTexture
- URLToFile() : SoInput
- USE_PICK : SoDragger
- USE_TEXTURE_QUALITY : SoTextureScalePolicy
- useAlphaTest() : SoGLImage
- useOverlay() : SoExtSelection
- usePathCode() : SoAction
- userDataIsUsed : SoMField
- userProj : SoRotateCylindricalDragger, SoRotateSphericalDragger