OpenGL.GL.NV.blend_square

OpenGL extension NV.blend_square

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

Overview (from the spec)

It is useful to be able to multiply a number by itself in the blending stages -- for example, in certain types of specular lighting effects where a result from a dot product needs to be taken to a high power.

This extension provides four additional blending factors to permit this and other effects: SRC_COLOR and ONE_MINUS_SRC_COLOR for source blending factors, and DST_COLOR and ONE_MINUS_DST_COLOR for destination blending factors.

Direct3D provides capability bits for advertising these additional blend modes.

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