GPU/Internal Registers: Difference between revisions
→Rasterizer registers: Documented GPUREG_SH_OUTMAP_Oi |
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== Rasterizer registers == | == Rasterizer registers == | ||
=== GPUREG_SH_OUTMAP_Oi === | |||
These registers map components of the corresponding vertex shader output register to specific fixed-function semantics. | |||
{| class="wikitable" border="1" | |||
! Bits | |||
! Description | |||
|- | |||
| 0-7 | |||
| Semantic for the x component of the register. | |||
|- | |||
| 8-15 | |||
| Semantic for the y component of the register. | |||
|- | |||
| 16-23 | |||
| Semantic for the z component of the register. | |||
|- | |||
| 24-31 | |||
| Semantic for the w component of the register. | |||
|} | |||
The semantic ids are: | |||
{| class="wikitable" border="1" | |||
! Value | |||
! Semantic | |||
! Description | |||
|- | |||
| 0x00 | |||
| position.x | |||
| rowspan="4" | Vertex Position | |||
|- | |||
| 0x01 | |||
| position.y | |||
|- | |||
| 0x02 | |||
| position.z | |||
|- | |||
| 0x03 | |||
| position.w | |||
|- | |||
| 0x04 | |||
| normquat.x | |||
| rowspan="4" | Quaternion specifying the normal/tangent frame (for fragment lighting) | |||
|- | |||
| 0x05 | |||
| normquat.y | |||
|- | |||
| 0x06 | |||
| normquat.z | |||
|- | |||
| 0x07 | |||
| normquat.w | |||
|- | |||
| 0x08 | |||
| color.r | |||
| rowspan="4" | Vertex color | |||
|- | |||
| 0x09 | |||
| color.g | |||
|- | |||
| 0x0A | |||
| color.b | |||
|- | |||
| 0x0B | |||
| color.a | |||
|- | |||
| 0x0C | |||
| texcoord0.u | |||
| rowspan="2" | Texture coordinates for texture 0 | |||
|- | |||
| 0x0D | |||
| texcoord0.v | |||
|- | |||
| 0x0E | |||
| texcoord1.u | |||
| rowspan="2" | Texture coordinates for texture 1 | |||
|- | |||
| 0x0F | |||
| texcoord1.v | |||
|- | |||
| 0x10 | |||
| texcoord0.w | |||
| | |||
|- | |||
| 0x12 | |||
| view.x | |||
| rowspan="3" | View vector (for fragment lighting) | |||
|- | |||
| 0x13 | |||
| view.y | |||
|- | |||
| 0x14 | |||
| view.z | |||
|- | |||
| 0x16 | |||
| texcoord2.u | |||
| rowspan="2" | Texture coordinates for texture 2 | |||
|- | |||
| 0x17 | |||
| texcoord2.v | |||
|- | |||
| 0x1F | |||
| Unused component | |||
| Should be set for unused components of the output register | |||
|} | |||
== Texturing registers == | == Texturing registers == | ||