OpenGL.GL.EXT.index_func

OpenGL extension EXT.index_func

This module customises the behaviour of the OpenGL.raw.GL.EXT.index_func to provide a more Python-friendly API

Overview (from the spec)

This extension provides a way to discard fragments when a comparison between the fragment's index value and a reference index fails. This may be used similarly to the alpha test which is available in RGBA mode.

The official definition of this extension is available here: http://www.opengl.org/registry/specs/EXT/index_func.txt