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Texture argument constants are used as values for the following members of the D3DTEXTURESTAGESTATETYPE enumerated type:
Set and retrieve texture arguments by calling the IDirect3DDevice9::SetTextureStageState and IDirect3DDevice9::GetTextureStageState methods.
Argument flags
You can combine an argument flag with a modifier, but two argument flags cannot be combined.
| #define | Description |
|---|---|
| D3DTA_CONSTANT | Select a constant from a texture stage. The default value is 0xffffffff. |
| D3DTA_CURRENT | The texture argument is the result of the previous blending stage. In the first texture stage (stage 0), this argument is equivalent to D3DTA_DIFFUSE. If the previous blending stage uses a bump-map texture (the D3DTOP_BUMPENVMAP operation), the system chooses the texture from the stage before the bump-map texture. If s represents the current texture stage and s - 1 contains a bump-map texture, this argument becomes the result output by texture stage s - 2. Permissions are read/write. |
| D3DTA_DIFFUSE | The texture argument is the diffuse color interpolated from vertex components during Gouraud shading. If the vertex does not contain a diffuse color, the default color is 0xffffffff. Permissions are read-only. |
| D3DTA_SELECTMASK | Mask value for all arguments; not used when setting texture arguments. |
| D3DTA_SPECULAR | The texture argument is the specular color interpolated from vertex components during Gouraud shading. If the vertex does not contain a specular color, the default color is 0xffffffff. Permissions are read-only. |
| D3DTA_TEMP | The texture argument is a temporary register color for read or write. D3DTA_TEMP is supported if the D3DPMISCCAPS_TSSARGTEMP device capability is present. The default value for the register is (0.0, 0.0, 0.0, 0.0). Permissions are read/write. |
| D3DTA_TEXTURE | The texture argument is the texture color for this texture stage. Permissions are read-only. |
| D3DTA_TFACTOR | The texture argument is the texture factor set in a previous call to the IDirect3DDevice9::SetRenderState with the D3DRS_TEXTUREFACTOR render-state value. Permissions are read-only. |
Modifier flags
An argument flag may be combined with one of the following modifier flags.
| #define | Description |
|---|---|
| D3DTA_ALPHAREPLICATE | Replicate the alpha information to all color channels before the operation completes. This is a read modifier. |
| D3DTA_COMPLEMENT | Take the complement of the argument x, (1.0 - x). This is a read modifier. |
| Header | d3d9types.h |
|---|---|
| Minimum operating system | Windows 98 |