D3DXVec2TransformCoord

Transforms a 2D vector by a given matrix, projecting the result back into w = 1.

D3DXVECTOR2 * D3DXVec2TransformCoord(
  D3DXVECTOR2 * pOut,
  CONST D3DXVECTOR2 * pV,
  CONST D3DXMATRIX * pM
);

Parameters

pOut

[in, out] Pointer to the D3DXVECTOR2 structure that is the result of the operation.

pV

[in] Pointer to the source D3DXVECTOR2 structure.

pM

[in] Pointer to the source D3DXMATRIX structure.

Return Values

Pointer to a D3DXVECTOR2 structure that is the transformed vector.

Remarks

This function transforms the vector, pV (x, y, 0, 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 D3DXVec2TransformCoord function can be used as a parameter for another function.

Requirements

Header: Declared in D3dx9math.h.

See Also

D3DXVec2Transform, D3DXVec2TransformNormal