D3DXSHPRTCompSuperCluster function
Used with compressed results of the vertex version of the precomputed radiance transfer (PRT) simulator. Generates "superclusters," which are groups of clusters that can be drawn in the same draw call. A greedy algorithm that minimizes overdraw is used to group the clusters.
Syntax
HRESULT D3DXSHPRTCompSuperCluster(
_In_ UINT *pClusterIDs,
_In_ LPD3DXMESH pScene,
_In_ UINT MaxNumClusters,
_In_ UINT NumClusters,
_Inout_ UINT *pSClusterIDs,
_Inout_ UINT *pNumSCs
);
Parameters
-
pClusterIDs [in]
-
Type: UINT*
Pointer to a NumVerts cluster IDs (extracted from a compressed buffer.)
-
pScene [in]
-
Type: LPD3DXMESH
Pointer to a mesh that represents composite scene passed to the simulator. See ID3DXMesh.
-
MaxNumClusters [in]
-
Type: UINT
Maximum number of clusters allocated per super cluster.
-
NumClusters [in]
-
Type: UINT
Number of clusters computed in the simulator.
-
pSClusterIDs [in, out]
-
Type: UINT*
Pointer to an array of length NumClusters. Contains the index of the super cluster to which the corresponding cluster was assigned.
-
pNumSCs [in, out]
-
Type: UINT*
Number of super clusters allocated.
Return value
Type: HRESULT
If the function succeeds, the return value is D3D_OK. If the function fails, the return value can be one of the following: D3DERR_INVALIDCALL, D3DXERR_INVALIDDATA, E_OUTOFMEMORY.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also