FnR

MFnRadialField
Function set for Radial Fields (OpenMayaFX) (OpenMayaFX.py)
MFnReflectShader
Manage Reflective Surface Shaders. (OpenMaya) (OpenMaya.py)
MFnRenderLayer
Function set for render layer. (OpenMayaRender) (OpenMayaRender.py)
MFnRotateManip
RotateManip function set (OpenMayaUI) (OpenMayaUI.py)