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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [llvmpipe] piglit glean fragProg1 Z-write test regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72607#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [llvmpipe] piglit glean fragProg1 Z-write test regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72607">bug 72607</a>
from <span class="vcard"><a class="email" href="mailto:mcclurem@vmware.com" title="Matthew McClure <mcclurem@vmware.com>"> <span class="fn">Matthew McClure</span></a>
</span></b>
<pre>A patch is in testing to implement the correct plumbing for ARB_depth_clamp.
The fragment depth write was not clamping against the near/far depth range as
specified here:
How should the setting of the raster position function when depth
clamping is enabled?
RESOLUTION: When setting the raster position, clamp the raster
position zw to the range [min(n,f),max(n,f)] where n and f are
the near and far depth range values.
See: <a href="http://www.opengl.org/registry/specs/ARB/depth_clamp.txt">http://www.opengl.org/registry/specs/ARB/depth_clamp.txt</a></pre>
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