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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DiRT Rally: wrong frames appear during camera transition"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105179">105179</a>
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<th>Summary</th>
<td>DiRT Rally: wrong frames appear during camera transition
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Mesa core
</td>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>gr.muench@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=137483" name="attach_137483" title="big fps drop at the time the bug appears">attachment 137483</a> <a href="attachment.cgi?id=137483&action=edit" title="big fps drop at the time the bug appears">[details]</a></span>
big fps drop at the time the bug appears
The issue can be watched in Benchmark mode. The camera changes multiple times
from outside to inside of the car during the benchmark run. Between the
transition from one view to another you see the start point of the track for a
short time (<1sec). There is also a stall and the framerate is dropping from
over 100fps to 40fps.
The start point is probably frame one and gets for unknown reason displayed
where it should be long gone from cards video memory.
Just to clarify:
In the moment of the transition, you see the frame of the track start point and
not the car and the trees surrounding which it actually should show.
Normally I would fill this as a RadeonSI issue but from reading:
<a href="https://lists.freedesktop.org/archives/mesa-dev/2018-February/185134.html">https://lists.freedesktop.org/archives/mesa-dev/2018-February/185134.html</a>
"except I got a few ltc errors in DiRT
Rally. Unclear if it's related to this patch though. Could be a missing
flush somewhere."
..I think it is a general mesa issue, except Im wrong here.
OpenGL renderer string: AMD Radeon HD 7900 Series (TAHITI / DRM 3.21.0 /
4.14.0-2-drm-next-dc-git, LLVM 7.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.1.0-devel
(git-a572ec2efe)
OpenGL core profile shading language version string: 4.50</pre>
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