OpenGL extension ARB.texture_gather
This module customises the behaviour of the OpenGL.raw.GL.ARB.texture_gather to provide a more Python-friendly API
Overview (from the spec)
This extension provides a new set of texture functions (textureGather) to the shading language that determine 2x2 footprint that are used for linear filtering in a texture lookup, and return a vector consisting of the first component from each of the four texels in the footprint.
The official definition of this extension is available here:
Return boolean indicating whether this extension is available