Normal maps generation constants.
|D3DX_NORMALMAP_MIRROR_U||Indicates that pixels off the edge of the texture on the u-axis should be mirrored, not wrapped.|
|D3DX_NORMALMAP_MIRROR_V||Indicates that pixels off the edge of the texture on the v-axis should be mirrored, not wrapped.|
|D3DX_NORMALMAP_MIRROR||Same as specifying D3DX_NORMALMAP_MIRROR_U | D3DX_NORMALMAP_MIRROR_V.|
|D3DX_NORMALMAP_INVERTSIGN||Inverts the direction of each normal.|
|D3DX_NORMALMAP_COMPUTE_OCCLUSION||Computes the per-pixel occlusion term and encodes it into the alpha. An alpha of 1 means that the pixel is not obscured in any way, and an alpha of 0 means that the pixel is completely obscured.|
|Minimum operating system||Windows 98|