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<body><span class="vcard"><a class="email" href="mailto:mattst88@gmail.com" title="Matt Turner <mattst88@gmail.com>"> <span class="fn">Matt Turner</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - black overlay on The Talos principle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95412">bug 95412</a>
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<table border="1" cellspacing="0" cellpadding="8">
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - black overlay on The Talos principle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95412#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - black overlay on The Talos principle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95412">bug 95412</a>
from <span class="vcard"><a class="email" href="mailto:mattst88@gmail.com" title="Matt Turner <mattst88@gmail.com>"> <span class="fn">Matt Turner</span></a>
</span></b>
<pre>Thanks for the nice report and apitrace!
I can confirm that the trace shows black overlays like in the screenshot on
HSW, and if I invert the condition
from == GL_ZERO_TO_ONE to != GL_ZERO_TO_ONE, like so
if (ctx->Transform.ClipDepthMode != GL_ZERO_TO_ONE)
dw2 |= GEN6_CLIP_API_D3D;
else
dw2 |= GEN6_CLIP_API_OGL;
it renders in a way that I suspect is correct (though I don't see anything
where the black overlay was?).
The ARB_clip_control spec is pretty clear that
<span class="quote">> This extension can be used to render content used in a Direct3D
> application in OpenGL in a straightforward way without modifying vertex or
> matrix data. When rendering into a window, the command</span >
>
<span class="quote">> glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);</span >
so GL_ZERO_TO_ONE corresponds with D3D.
Can you still reproduce this with Talos today? I suspect it might be (have
been?) a game bug and not a driver bug.
If you can still reproduce with the current version of Talos please change the
bug's status to REOPENED and if you cannot to RESOLVED/NOTOURBUG.
[1] <a href="https://www.opengl.org/registry/specs/ARB/clip_control.txt">https://www.opengl.org/registry/specs/ARB/clip_control.txt</a></pre>
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