https://bugs.freedesktop.org/show_bug.cgi?id=48052
Bug #: 48052
Summary: [softpipe] depth-cube-map fails
Classification: Unclassified
Product: Mesa
Version: git
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
I took some time to look after this bug. The problem seems to come from the
sample_cube function in sp_tex_sample.c, when the face of the cube map is
determined using the four pixel's texcoords average.
At the edges of the current rasterized primitive, some pixels may not be part
of the primitive (ie. masked), leading to an incorrect average and therefore an
incorrect face selection.
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