https://bugs.winehq.org/show_bug.cgi?id=44752
--- Comment #4 from Alistair Leslie-Hughes leslie_alistair@hotmail.com --- (In reply to Alistair Leslie-Hughes from comment #3)
(In reply to Józef Kucia from comment #2)
Your graphics driver/GPU doesn't support GL_ARB_texture_compression_bptc
Does that mean we are stating that we support something a card can't do?
After some research https://msdn.microsoft.com/en-us/library/windows/desktop/ff476876(v=vs.85).a...
This shows that the BC6H/BC7 Compression isn't support for feature level D3D_FEATURE_LEVEL_10_1 and below.