Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0

R

13.2.GFXRENDERSTATE_VERTEX_FORMAT

Flexible Vertex Format Packet

DWord

Bit

 

Description

 

 

 

0

31:29

Client : 03h – Render Processor

 

 

 

 

28:24

3DState24 : 05h

 

 

 

 

23:12

Reserved : 00h

 

 

 

 

11:8

Texture Coordinate Count: This field identifies how many coordinates are present in

 

 

the vertex. The valid range is 0–2.

 

 

 

 

7

Specular Color and Fog Factor Present

 

 

 

 

6

Diffuse Color and Alpha Present

 

 

 

 

5

Z-Offset Present

 

 

 

 

4

Reserved: 00h (DX6 Normal Vector Present Bit)

 

 

 

 

3:1

Position Mask:

 

 

0h

= Invalid

 

 

1h

= XYZ Present, RHW not present

 

 

2h

= XYZRHW Present

 

 

3h

= XY Present, RHW and Z not present

 

 

4h

= XYRHW Present, Z not present

 

 

5h–7h = Reserved

 

 

 

 

0

Reserved: 00h

 

 

 

 

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Image 209
Intel 815 manual Gfxrenderstatevertexformat