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D3DXVec3TransformCoordArray function

Transforms an array (x, y, z, 1) by a given matrix, and projects the result back into w = 1.

Syntax


D3DXVECTOR3* D3DXVec3TransformCoordArray(
  _Inout_  D3DXVECTOR3 *pOut,
  _In_     UINT OutStride,
  _In_     const D3DXVECTOR3 *pV,
  _In_     UINT VStride,
  _In_     const D3DXMATRIX *pM,
  _In_     UINT n
);

Parameters

pOut [in, out]

Type: D3DXVECTOR3*

Pointer to the D3DXVECTOR3 structure that is the result of the operation.

OutStride [in]

Type: UINT

Stride between vectors in the output data stream.

pV [in]

Type: const D3DXVECTOR3*

Pointer to the source D3DXVECTOR3 array.

VStride [in]

Type: UINT

Stride between vectors in the input data stream.

pM [in]

Type: const D3DXMATRIX*

Pointer to the source D3DXMATRIX structure.

n [in]

Type: UINT

Number of elements in the array.

Return value

Type: D3DXVECTOR3*

Pointer to a D3DXVECTOR3 structure that is the transformed array.

Remarks

This function transforms the array pV (x, y, z, 1) by the matrix pM, projecting the result back into w = 1.

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXVec3TransformCoord function can be used as a parameter for another function.

Requirements

Header

D3dx9math.h

Library

D3dx9.lib

 

 

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