[Bug 31830] [bisected] broken shadows in Unigine Sanctuary and Lightsmark

https://bugs.freedesktop.org/show_bug.cgi?id=31830

--- Comment #13 from Tom Stellard tstellar@gmail.com 2011-01-28 00:20:29 PST --- I'm pretty sure this is a bug in the scheduler. I'm attaching screenshots comparing running with this patch: https://bugs.freedesktop.org/attachment.cgi?id=42514 to running with RADEON_DEBUG=noopt. The screenshots look very similar, but I think the shadow with RADEON_DEBUG=noopt is darker.

As for performance difference between RADEON_DEBUG=noopt and with optimizations. I think we are seeing this because Lightsmark compiles new shaders while running the benchmark and the longer compile time for optimized shaders is lowering the FPS.