GL_ATI_envmap_bumpmap seems to describe identical functionality to DirectX6 EMBM. ATI's drivers support this extension and it is implemented in Mesa apparently. Does anyone know of a demo or sample code that utilizes this extension?
ATI's drivers do support it, but Mesa does not. This would be a useful extension to have in Mesa since R100, R200, G400, and i830 all support it in hardware. I looked at adding support for it once. The main barrier is that the DUDV texture formats (which are the same as the DSDT texture formats in NV_texture_shader) are *signed*. Mesa doesn't currently have any support for signed texture formats.
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