Hi, there is a new branch gallium-depth-clamp in the main repository which implements ARB_depth_clamp in Gallium. Wine uses this extension to disable clipping when it's requested from a D3D9 app, so it's an important one. There is a new state "depth_clamp" in pipe_clip_state, and a new cap PIPE_CAP_DEPTH_CLAMP. If you think this feature should be mandatory in Gallium instead, it's ok with me. There are several reasons I put the enable bit in pipe_clip_state, but the most important one is that Z clipping must be disabled in hardware first for it to work. It also implements depth_clamp handling in cso_cache and wires up ARB_depth_clamp in st/mesa. The support in Draw has also been implemented, and both softpipe and llvmpipe pass piglit/depth_clamp and piglit/depth-clamp-range. <a href="http://cgit.freedesktop.org/mesa/mesa/log/?h=gallium-depth-clamp">http://cgit.freedesktop.org/mesa/mesa/log/?h=gallium-depth-clamp</a> Please review. -Marek