D3DXVec3TransformNormalArray Function

Transforms array (x, y, z, 0) by a given matrix.

Syntax

D3DXVECTOR3 *WINAPI D3DXVec3TransformNormalArray(      

    D3DXVECTOR3* pOut,
    UINT OutStride,
    CONST D3DXVECTOR3* pV,
    UINT VStride,
    CONST D3DXMATRIX* pM,
    UINT n
);

Parameters

pOut

[in, out] Pointer to the D3DXVECTOR3 array that is the result of the operation.

OutStride

[in] Stride between vectors in the output data stream.

pV

[in] Pointer to the source D3DXVECTOR3 array.

VStride

[in] Stride between vectors in the input data stream.

pM

[in] Pointer to the source D3DXMATRIX structure. To transpose a normal with a non-affine matrix, this matrix should be a transposed-inverse transformation matrix.

n

[in] Number of elements in the array.

Return Value

Pointer to a D3DXVECTOR3 array that is the transformed vector.

Remarks

This function transforms the vector normal (x, y, 0, 0) of the vector, pV, by the matrix pM.

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXVec3TransformNormalArray function can be used as a parameter for another function.

Function Information

Header	d3dx9math.h
Import library	d3dx9.lib
Minimum operating systems	Windows 98