OpenGL extension EXT.texture_env_dot3
This module customises the behaviour of the OpenGL.raw.GL.EXT.texture_env_dot3 to provide a more Python-friendly API
Overview (from the spec)
Adds new operation to the texture combiner operations.
DOT3_RGB_EXT Arg0 <dotprod> Arg1 DOT3_RGBA_EXT Arg0 <dotprod> Arg1
where Arg0, Arg1 are derived from
PRIMARY_COLOR_EXT primary color of incoming fragment TEXTURE texture color of corresponding texture unit CONSTANT_EXT texture environment constant color PREVIOUS_EXT result of previous texture environment; on texture unit 0, this maps to PRIMARY_COLOR_EXT
This operaion can only be performed if SOURCE0_RGB_EXT, SOURCE1_RGB_EXT are defined.
The official definition of this extension is available here:



GL_DOT3_RGB_EXT (34624)
GL_DOT3_RGBA_EXT (34625)