OpenGL extension ARB.shadow_ambient
This module customises the behaviour of the OpenGL.raw.GL.ARB.shadow_ambient to provide a more Python-friendly API
Overview (from the spec)
This is based on the GL_SGIX_shadow_ambient extension and is layered upon the GL_ARB_shadow extension.
Basically, this extension allows the user to specify the texture value to use when the texture compare function fails. Normally this value is zero. By allowing an arbitrary value we can get functionality which otherwise requires an advanced texture combine extension (such as GL_NV_register_combiners) and multiple texture units.
The official definition of this extension is available here: