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The following flags are used to specify which channels in a texture to operate on.
| #define | Description |
|---|---|
| D3DX_CHANNEL_RED | Indicates the red channel should be used. |
| D3DX_CHANNEL_BLUE | Indicates the blue channel should be used. |
| D3DX_CHANNEL_GREEN | Indicates the green channel should be used. |
| D3DX_CHANNEL_ALPHA | Indicates the alpha channel should be used. |
| D3DX_CHANNEL_LUMINANCE | Indicates the luminances of the red, green, and blue channels should be used. |
| Header | d3dx9tex.h |
|---|---|
| Minimum operating system | Windows 98 |