r500/regs/ga_color_control.txt
2025-10-13 08:44:03 -05:00

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Field Name Bits Default Description
RGB0_SHADING 1:0 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
ALPHA0_SHADING 3:2 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
RGB1_SHADING 5:4 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
ALPHA1_SHADING 7:6 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
RGB2_SHADING 9:8 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
ALPHA2_SHADING 11:10 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
RGB3_SHADING 13:12 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
ALPHA3_SHADING 15:14 0x0 Specifies solid, flat or Gouraud shading.
POSSIBLE VALUES:
00 - Solid fill color
01 - Flat shading
02 - Gouraud shading
PROVOKING_VERTEX 17:16 0x0 Specifies, for flat shaded polygons, which vertex holds
the polygon color.
POSSIBLE VALUES:
00 - Provoking is first vertex
01 - Provoking is second vertex
02 - Provoking is third vertex
03 - Provoking is always last vertex