This supercedes the original practice of storing textures inside display lists. Provided for backward compatibility. The equivalent functionality exists in OpenGL 1.1. Provided for backward compatibility. The equivalent functionality exists in OpenGL 1.1.
Automatic texture coordinate generation for textured lighting and environment mapping.
See the summary in the spec for details. Useful for shading affects, particularly when combined with multitexture. This extension is provided for compatibility with older versions of Quake2 only, and should not be used for development.