https://bugs.freedesktop.org/show_bug.cgi?id=85376
--- Comment #4 from Markus Wick wickmarkus@web.de --- The affected shader seems to be the #22 one, but it's hard to guess what's wrong with the shader http://pastie.org/private/ccwhydvtgzw0rc1t8xdeoq
As abstract of this dolphin commit, it's basicly a rewrite of our fragment shaders with integer math, so I doubt it's useful to debug in this direction :/
About this shader, I see two uncommon features: We write to gl_FragDepth and we use a bitshift with an offset from an integer ubo. Maybe I'm lucky ...
About the issue itself, it only happens on *some* GPUs, so maybe a kind of shader compilation issue?