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This table maps members of a D3DVERTEXELEMENT9 declaration to a Microsoft DirectX 8.0 declaration.
DirectX 9.0 Usage | DirectX 9.0 Usage index | DirectX 8.0 |
---|---|---|
D3DDECLUSAGE_POSITION | 0 | D3DVSDE_POSITION |
D3DDECLUSAGE_POSITION | 1 | D3DVSDE_POSITION2 |
D3DDECLUSAGE_NORMAL | 0 | D3DVSDE_NORMAL |
D3DDECLUSAGE_NORMAL | 1 | D3DVSDE_NORMAL2 |
D3DDECLUSAGE_BLENDWEIGHT | 0 | D3DVSDE_BLENDWEIGHT |
D3DDECLUSAGE_BLENDINDICES | 0 | D3DVSDE_BLENDINDICES |
D3DDECLUSAGE_PSIZE | 0 | D3DVSDE_PSIZE |
D3DDECLUSAGE_COLOR | 0 | D3DVSDE_DIFFUSE |
D3DDECLUSAGE_COLOR | 1 | D3DVSDE_SPECULAR |
D3DDECLUSAGE_TEXCOORD | n | D3DVSDE_TEXCOORDn |
When a declaration is used with hardware vertex processing on a DirectX 7.0 driver, the Microsoft Direct3D runtime converts it to a flexible vertex format (FVF) with the following rules: