Created attachment 127870 [details]
Fragment shader

The card is Radeon R9 390.

I have a fragment shader that seems to corrupt the geometry of the triangle. I
reduced that fragment shader a lot. The code for this is not easy to compile
and require a rather large dataset. You can reach me on IRC, nick Prf_Jakob.


$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD HAWAII (DRM 2.46.0 /
4.8.0-26-generic, LLVM 3.9.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 13.1.0-devel
(git-7bcb94b)
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 13.1.0-devel (git-7bcb94b)
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 13.1.0-devel (git-7bcb94b)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions: