https://bugs.freedesktop.org/show_bug.cgi?id=55510
--- Comment #8 from Andy Furniss adf.lists@gmail.com --- (In reply to comment #7)
Thanks, exporting force_glsl_extensions_warn=true does fix the rendering of tropics! Should I close the report or is it considered a temporary workaround?
As a side note, exporting MESA_EXTENSION_OVERRIDE=-GL_ARB_shader_bit_encoding does not change anything for me in heaven 3.0. It has always been rendering correctly, so the override does not fix anything, or maybe I never stumbled upon the missing parts I am supposed to see...
Maybe it depends on h/w and or settings (defaults I suppose may be set according to what heaven detects - untested).
I just tried on my HD4890 and without that I don't get any lighting/nice effects so it looks very plain/matt.