http://bugs.freedesktop.org/show_bug.cgi?id=12176
Summary: 1D depth texture with GL_LUMINANCE mode is incorrect
Product: Mesa
Version: CVS
Platform: Other
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/i915
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [email protected]
on 945G(64bit), 915GV(64bit), 945GM(32bit),
1D depth texture, with GL_LUMINANCE mode is not correct.
according to the OpenGL spec, when compare mode is set to GL_LEQUAL
r = 1.0, when R <= Dt
r = 0.0, when R > Dt
and then r is treated as luminance component. so it can only be
(0.0, 0.0, 0.0), or (1.0, 1.0, 1.0)
for RGB components.
And, this work well in non-dri mode.
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