<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Shadows are flickering in SuperTuxKart" href="https://bugs.freedesktop.org/show_bug.cgi?id=110395#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Shadows are flickering in SuperTuxKart" href="https://bugs.freedesktop.org/show_bug.cgi?id=110395">bug 110395</a> from <a class="email" href="mailto:denys.kostin@globallogic.com" title="Denis <denys.kostin@globallogic.com>"> Denis</a> <pre>@Deve - >I can "fix" this by changing order of the "layer" and "wind_direction" uniform variables. Maybe it's just a case. Does it fix bisected by you commit (from Danylo)? I made bisection one more time (and now I think that it was the most correct), but I did what you suggested (first line in shader is "wind_dircection", second - "layer". As I wrote before, this issue is completely random. It can be reproduced, like, 1/5, or even 1/10 launches. Sometimes - 1 time from 2 launches. So, 17.3.6 was stable (I did about 50 launches or even more), and 18.3.4 - with an issue. Also issue existed in 19.0.0-rc7 (simply I had them compiled). And result of bisection also lead me to Danylo's commit. >you may want MESA_EXTENSION_OVERRIDE="-GL_ARB_buffer_storage" apitrace trace bin/supertuxkart thanks a lot! It helped and I made an apitrace. I will discuss my results with Danylo when he will be available. >This is on my Intel skylake system (HD520). Very interesting. I made an apitrace, and ran it on SKL (fedora 29) about 10 times. Didn't see flickerings. Also I checked app (and apitrace) on my KBL - with 19.0 mesa version - also nothing. Could you please check apitrace I did? <a href="https://drive.google.com/open?id=1hTRS3tgBuSOSNiFGoy7JaLVKkVeNmwb0">https://drive.google.com/open?id=1hTRS3tgBuSOSNiFGoy7JaLVKkVeNmwb0</a> UDP - everything I did, was maden on: Fedora 29 HSW cpu</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>