Created attachment 134041 [details] Screenshot comparison When trying to display https://www.shadertoy.com/view/4llcR4 i get artifacts near horizon due to mipmapping (artifacts are absent with mipmapping disabled). It works as expected with the proprietary driver (under Windows) on the same machine. See attached image for Screenshot comparison. So either mipmap generation or display seems to be erroneous for 3D textures. My card is AMD Radeon HD 7870.
Please attach the corresponding glxinfo output. FWIW, not seeing the problem on Kaveri with recent Git master.
Created attachment 134096 [details] Glxinfo output
Added glxinfo attachment. Also upgraded to Mesa 17.2, but the problem still exists, glxinfo log is from new version.
Maybe an SI-specific bug? Looks like the bottom part of the screenshot comparison for me on both Carrizo and Tonga (VI) with Git master.
Created attachment 143426 [details] Test program The bug is still present for me with mesa 18.3.4-1 I wrote a little test program which compares an uploaded 3dtexture mipmap with the corresponding output of glGetTexImage. It should output nothing, but on my desktop pc it outputs: Error in level 2 Error in level 3 Error in level 4 Compile with "gcc test.c -o test -lglfw -lepoxy"
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