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2014 May 01
13
[Bug 78161] New: [NV96] Artifacts in output of fragment program containing not unrolled loops with conditional break
...ps://bugs.freedesktop.org/attachment.cgi?id=98301&action=edit
apitrace of simple test program.
Problem appear in shaders containing loops with conditional break when loop is
not unrolled by nouveau. I checked emitted code with ST_DEBUG=tgsi
NV50_PROG_DEBUG=1.
Tested with Mesa 10.2.0-devel (git-475f5ff) from 2014-04-30.
This bug exists for more than year, I first saw it in 2013-02.
I think that artifacts appear in areas where is big difference in number of
iterations executed for pixel before breaking from loop.
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