What is it? This is pack of modified shaders for open source drivers on Linux. Some PA shaders use deprecated extension GL_EXT_gpu_shader4 which is not supported by Mesa open source drivers and and Intel drivers on Windows. If you use those drivers you'll see black screen if you enable FXAA. What's changed? GL_EXT_gpu_shader4 commented in prelight and post_fxaa.fs shaders. In post_fxaa.fs functions texture2DGrad/texture2DLod replaced with textureGrad/textureLod GLSL version of post_fxaa.fs bumped to 130. GLSL version of all other linked shaders bumbed to 130. This required because mixing of shaders versions not allowed by GLSL standard. What they're actually doing? Remove shader compilation errors from your logs. Make FXAA work. How do I install them? Unpack archive and replace original shaders with modified versions. PS: I use both open source drivers and Windows Intel HD drivers, so I'll always upload shaders for new version of PA after I fix them for myself.
I still had 1 fail on ivybridge so i fixed it again .. Added zip with the fixed prelighting shader Thank-you SXX for working on this, it's the most AWESOME fix ever!! *2 Thumbs Up*
