r500/regs/su_cull_mode.txt

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Field Name Bits Default Description
CULL_FRONT 0 0x0 Enable for front-face culling.
POSSIBLE VALUES:
00 - Do not cull front-facing triangles.
01 - Cull front-facing triangles.
CULL_BACK 1 0x0 Enable for back-face culling.
POSSIBLE VALUES:
00 - Do not cull back-facing triangles.
01 - Cull back-facing triangles.
FACE 2 0x0 X-Ored with cross product sign to determine positive
facing
POSSIBLE VALUES:
00 - Positive cross product is front (CCW).
01 - Negative cross product is front (CW).