Created attachment 143171 [details]
There are two problems:
1. Trees are rendered incorrectly on Azure Coast
2. Reflections on some cars look strange. Like there are some random colored pixels.
Extended renderer info (GLX_MESA_query_renderer):
Vendor: X.Org (0x1002)
Device: AMD Radeon HD 7900 Series (TAHITI, DRM 3.27.0, 4.20.0-2-amd-staging-drm-next-git, LLVM 8.0.0) (0x6798)
Video memory: 3072MB
Unified memory: no
Preferred profile: core (0x1)
Max core profile version: 4.5
Max compat profile version: 4.5
Max GLES1 profile version: 1.1
Max GLES profile version: 3.2
OpenGL renderer string: AMD Radeon HD 7900 Series (TAHITI, DRM 3.27.0, 4.20.0-2-amd-staging-drm-next-git, LLVM 8.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 19.0.0-devel (git-acdad24585)
Created attachment 143172 [details]
Created attachment 143358 [details] [review]
hack for the trees issue
Does the attached diff also fix the trees issue on your side?
For some reasons, this optimization doesn't work correctly with that game.
Created attachment 143361 [details]
Your patch works also for me.
BTW those bad reflections do only occur with MSAA. By also enabling FXAA makes it even more visible.
The trees issue should be fixed with https://cgit.freedesktop.org/mesa/mesa/commit/?id=334da034d8d91ca5a0a1bff8deaefd8ca762c42e