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

### - u -

- SoUnits() : SoUnits
- uniquify() : SoPathList
- unref() : SoBase, SoCache, SoGLBigImage, SoGLCubeMapImage, SoGLDisplayList, SoGLImage, SoGlyph
- unrefNoDelete() : SoBase
- unrefOldDL() : SoGLBigImage, SoGLImage
- unregisterChildDragger() : SoDragger
- unregisterChildDraggerMovingIndependently() : SoDragger
- unschedule() : SoDelayQueueSensor, SoSensor, SoTimerQueueSensor, SoTimerSensor
- unsquishKnobs() : SoTransformerManip
- 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
- URLToFile() : SoInput
- useAlphaTest() : SoGLImage
- useOverlay() : SoExtSelection
- usePathCode() : SoAction