<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#c2">Comment # 2</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>hello Deve, Mark. I tested this issue and found out that it was fixed in commit below. Bisect was maden between 18.3.4 and 19.0.0-rc7 tags. Firstly it made me crazy, because I got different results even for the same mesa version (like, 18.3.4 first time may show issue, after re-launching application - not). This was solved by adding MESA_GLSL_CACHE_DISABLE=1 before binary name. I think, some shaders simply were cached, and that could lead to wrong results. Latest master (if you run app like this MESA_GLSL_CACHE_DISABLE=1 ./supertuxcart) doesn't have this issue. commit 5a9b7bce9cee5563e94e75c93fffe462405dfcb1 (HEAD, refs/bisect/good-5a9b7bce9cee5563e94e75c93fffe462405dfcb1) Author: Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>> Date: Mon Feb 4 22:57:06 2019 -0500 nv50,nvc0: use condition for occlusion queries when already complete For the NO_WAIT variants, we would jump into the ALWAYS case for both nested and inverted occlusion queries. However if the query had previously completed, the application could reasonably expect that the render condition would follow that result. To resolve this, we remove the nesting distinction which unnecessarily created an imbalance between the regular and inverted cases (since there's no "zero" condition mode). We also use the proper comparison if we know that the query has completed (which could happen as a result of an earlier get_query_result call). Fixes KHR-GL45.conditional_render_inverted.functional Signed-off-by: Ilia Mirkin <<a href="mailto:imirkin@alum.mit.edu">imirkin@alum.mit.edu</a>> Cc: 19.0 <<a href="mailto:mesa-stable@lists.freedesktop.org">mesa-stable@lists.freedesktop.org</a>> (cherry picked from commit e00799d3dc0595dc3998dbf199ceec8b1eece966)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>