D3DMXVec3Cross

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This inline function returns the cross product of two vectors in floating point format.

Syntax

D3DMXVECTOR3* D3DMXVec3Cross(
  D3DMXVECTOR3*       pOut,
  CONST D3DMXVECTOR3* pV1,
  CONST D3DMXVECTOR3* pV2
);

Parameters

• pOut
  [in, out] Pointer to the D3DMXVECTOR3 structure that is the result of the operation.

• pV1
  [in] Pointer to a source D3DMXVECTOR3 structure.

• pV2
  [in] Pointer to a source D3DMXVECTOR3 structure.

Return Value

Pointer to a D3DMXVECTOR3 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 D3DMXVec3Cross function can be used as a parameter for another function.

Requirements

See Also

Reference

D3DMX Functions
D3DMXVECTOR3
D3DMXVec3CrossFxd