[Glistening Black]

To get glitch free 1920*1200 60fps I have to use -disable_fbo "Disable OpenGL RenderTargets"
Otherwise there are checkerboard artefacts an Z issues in the engine exhausts. (they flicker through the front of ships when they shouldn't be visible ) , took me a while to find this was the cause, so I'm sharing it here.

AMD radeon RX 460  2GB
OpenGL renderer string: Gallium 0.4 on AMD POLARIS11 (DRM 3.9.0 / 4.10.0, LLVM 3.9.1)

Otherwise game seems to run smooth, and its quite pretty, thanks for (re)writing and extending the engine.

Are there any devel vp packs past 2014?

I added these custom flags do they work? trying to maximize image quality
-fxaa_preset 9 -shadow_quality 2

[m!m]

What FSO version are you using? 3.7.4 has known problems with the Mesa drivers which have been fixed in the nightly builds so you could try those. I am also using a AMD Polaris card with the Mesa drivers and I don't have any issues with them.

[Glistening Black]

that was a git build, will try another build later