D3DXSHProjectCubeMap function
Projects a function represented on a cube map into spherical harmonics (SH).
Syntax
HRESULT D3DXSHProjectCubeMap(
_In_ UINT Order,
_In_ LPDIRECT3DCUBETEXTURE9 pCubeMap,
_In_ FLOAT *pROut,
_In_ FLOAT *pGOut,
_In_ FLOAT *pBOut
);
Parameters
-
Order [in]
-
Type: UINT
Order of the spherical harmonic (SH) evaluation. Must be in the range of D3DXSH_MINORDER to D3DXSH_MAXORDER, inclusive. The evaluation generates Order² coefficients. The degree of the evaluation is Order - 1.
-
pCubeMap [in]
-
Type: LPDIRECT3DCUBETEXTURE9
Pointer to a source cube texture. See IDirect3DCubeTexture9.
-
pROut [in]
-
Type: FLOAT*
Pointer to the output SH vector for the red component.
-
pGOut [in]
-
Type: FLOAT*
Pointer to the output SH vector for the green component.
-
pBOut [in]
-
Type: FLOAT*
Pointer to the output SH vector for the blue component.
Return value
Type: HRESULT
If the function succeeds, the return value is D3D_OK. If the function fails, the return value can be: D3DERR_INVALIDCALL.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also