http://bugs.freedesktop.org/show_bug.cgi?id=25290
Summary: R600: Doesn't correctly handle glFrontFace(GL_CW)
Product: Mesa
Version: git
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/R600
AssignedTo: [email protected]
ReportedBy: [email protected]
Created an attachment (id=31480)
--> (http://bugs.freedesktop.org/attachment.cgi?id=31480)
program draws triangle with clockwise winding
The R600 driver doesn't correctly handle glFrontFace(GL_CW) I attached a small
program to demonstrate the problem.
The attached program:
- sets the mode of back-facing polygons to GL_LINE, so one can see the visual
difference between the front-facing and back-facing polygons.
- selects polygons with clockwise winding as front-facing
- draws a triangle with clockwise winding
When the program is run with the software renderer it renders the front-facing
polygons as expected, but the R600 driver renders the back-facing polygons.
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