D3DXVec3Cross Function

Determines the cross-product of two 3-D vectors.

Syntax

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 Value

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

Function Information

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

See Also

D3DXVec3Dot