<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [LLVM] DIRT 3 horrible performance when Shadows set to very high"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111340">111340</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[LLVM] DIRT 3 horrible performance when Shadows set to very high
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/Vulkan/radeon
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>gr.muench@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Once you set Shadows to very high in the Options Menu the game slows down. You
have to use DXVK to run the game, version doesnt matter.
I already reported this last year when I was still using my Radeon HD 7970:
<a href="https://github.com/doitsujin/dxvk/issues/67#issuecomment-421925690">https://github.com/doitsujin/dxvk/issues/67#issuecomment-421925690</a>
The game takes a nose dive from 134 to 29 fps once you switch the settings.
I tried today with my new Vega 56 and ACO:
with LLVM: 72,5 fps
with ACO: 206,3 fps
So we finally have the proof that LLVM is causing this. This might be the same
problem we have with the long standing and still valid bug:
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Dirt: Showdown bad performance and broken rendering with enabled advanced lightning"
href="show_bug.cgi?id=100069">https://bugs.freedesktop.org/show_bug.cgi?id=100069</a></pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>