https://bugs.winehq.org/show_bug.cgi?id=41055
--- Comment #12 from Henri Verbeet hverbeet@gmail.com --- Created attachment 56171 --> https://bugs.winehq.org/attachment.cgi?id=56171 patch
Does this patch make it any better?
Note that when testing with MESA_EXTENSION_OVERRIDE=-GL_ARB_fragment_shader, you should also set MESA_GL_VERSION_OVERRIDE=1.4, since OpenGL 2.0 implies GL_ARB_fragment_shader.