<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - dark lines visual corruption in ground texture with Heroes of the Storm DXVK [supposedly LLVM bug]" href="https://bugs.freedesktop.org/show_bug.cgi?id=109394#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - dark lines visual corruption in ground texture with Heroes of the Storm DXVK [supposedly LLVM bug]" href="https://bugs.freedesktop.org/show_bug.cgi?id=109394">bug 109394</a> from <a class="email" href="mailto:pendingchaos02+fdobugzilla@gmail.com" title="Rhys Perry <pendingchaos02+fdobugzilla@gmail.com>"> Rhys Perry</a> <pre>I think this is a game bug: it's using implicit derivatives when sampling textures in non-uniform control flow. In the GLSL and SPIR-V spec, the results are undefined. I think it's the same with HLSL. Since the control flow is non-uniform and (IIRC) LLVM seems to move the operations creating the texture coordinates into it, I think it's causing discontinuities and messing up the LOD calculation.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>