https://bugs.winehq.org/show_bug.cgi?id=41213
--- Comment #1 from Jason Wood montanawoody@gmail.com --- Created attachment 55468 --> https://bugs.winehq.org/attachment.cgi?id=55468 Patch to increase the maximum number of fragment samplers
I don't know what the appropriate value is here. Bumping MAX_FRAGMENT_SAMPLERS to 32 from 16 seemed to have no ill effect and fixed the missing texture issue.