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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 - Triangle boundary artifact on Shadow Warrior game"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90221">90221</a>
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<th>Summary</th>
<td>Triangle boundary artifact on Shadow Warrior game
</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>x86-64 (AMD64)
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>lvella@gmail.com
</td>
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<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=115419" name="attach_115419" title="Wall with light effect triggering the artifact.">attachment 115419</a> <a href="attachment.cgi?id=115419&action=edit" title="Wall with light effect triggering the artifact.">[details]</a></span>
Wall with light effect triggering the artifact.
On game Shawdow Warrior, with Southern Island chip, drivers from this PPA:
<a href="https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers">https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers</a>
Experienced both on Ubuntu 14.10 and, after upgrade, on Ubuntu 15.04.
Some special effects trigger a visible artifact on triangle primitive
boundaries, probably, see screenshot attached. With fglrx, the issue is not
present.
It seems the problem is on some post-processing shader, because, as can be seen
in the screenshot, the visible triangles does not respect the boundary of scene
objects, and if I move the mouse, they are fixed relative to the screen.
Running with the following env var (otherwise the game is unplayable slow on
current video settings):
R600_DEBUG=sb
Relevant info from glxinfo:
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD TAHITI
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.6.0-devel
(git-7f5a8ac 2015-04-25 utopic-oibaf-ppa)
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)</pre>
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