D3DXVec3Cross

Determines the cross-product of two 3D vectors.

D3DXVECTOR3 * D3DXVec3Cross(
  D3DXVECTOR3 * pOut,
  CONST D3DXVECTOR3 * pV1,
  CONST D3DXVECTOR3 * pV2
);

Parameters

pOut

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

pV1

[in] Pointer to a source D3DXVECTOR3 structure.

pV2

[in] Pointer to a source D3DXVECTOR3 structure.

Return Values

Pointer to a D3DXVECTOR3 structure that is the cross product of two 3D vectors.

Remarks

This function determines the cross-product with the following code.

D3DXVECTOR3 v;
    
v.x = pV1->y * pV2->z - pV1->z * pV2->y;
v.y = pV1->z * pV2->x - pV1->x * pV2->z;
v.z = pV1->x * pV2->y - pV1->y * pV2->x;
    
*pOut = v;

The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXVec3Cross function can be used as a parameter for another function.

Requirements

Header: Declared in D3dx9math.h.

See Also

D3DXVec3Dot