Enable FinalGatherTraceReflection attribute
These MEL scripts are modified versions of Maya 5.0.1`s Render Globals templates, to enable the display of two new attributes:
finalGatherTraceReflection and finalGatherTraceRefraction
Without these the new finalGatherTraceDepth attribute has no point, because these are set to 1 by default. Because of some obscured reasons these attributes were not included in the Maya RenderGlobals UI.
Copy both files into a Maya script directory. The list of current script
directories can be queried using the following mel command: getenv "MAYA_SCRIPT_PATH"