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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Dirt: Showdown bad performance with enabled advanced lightning"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100069">100069</a>
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<th>Summary</th>
<td>Dirt: Showdown bad performance with enabled advanced lightning
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (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
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<th>Component</th>
<td>glsl-compiler
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>gr.muench@gmail.com
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=130078" name="attach_130078" title="menu options">attachment 130078</a> <a href="attachment.cgi?id=130078&action=edit" title="menu options">[details]</a></span>
menu options
With higher GL versions, Dirt enables "advanced lighting" options in the
graphics menu. Setting this to "On" makes the game basically a slide show.
FPS is going down from 60 to 10.
Im on a Radeon HD 7970. Also all other Radeon cards seems to have a performance
problem:
<a href="http://www.phoronix.com/scan.php?page=article&item=mesa171-pro60-rx470&num=2">http://www.phoronix.com/scan.php?page=article&item=mesa171-pro60-rx470&num=2</a>
where figures looked better in 2015 (but probably because Opengl 4.5 wasnt
there)
<a href="http://www.phoronix.com/scan.php?page=article&item=dirt-showdown-linux&num=3">http://www.phoronix.com/scan.php?page=article&item=dirt-showdown-linux&num=3</a>
Some more infos about the lightning options:
<a href="http://www.rage3d.com/articles/gaming/codemaster_dirt_showdown_tech_review/index.php?p=2">http://www.rage3d.com/articles/gaming/codemaster_dirt_showdown_tech_review/index.php?p=2</a></pre>
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</p>
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