Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

XMVector4Cross method

Computes the 4D cross product.

Syntax


XMVECTOR XMVector4Cross(
  [in] XMVECTOR V1,
  [in] XMVECTOR V2,
  [in] XMVECTOR V3
);

Parameters

V1 [in]

4D vector.

V2 [in]

4D vector.

V3 [in]

4D vector.

Return value

Returns the 4D cross product of V1, V2, and V3.

Remarks

A 4D cross-product is not well-defined. This function computes a geometric analog to the 3D cross product. XMVector4Orthogonal is another generalized 'cross-product' for 4D vectors.

The following pseudocode demonstrates the operation of the function:



XMVECTOR Result;

Result.x = V1.y * (V2.z * V3.w - V3.z * V2.w)
           -  V1.z * (V2.y * V3.w - V3.y * V2.w )
           +  V1.w * (V2.y * V3.z - V3.y * V2.z);

Result.y = V1.x * (V3.z * V2.w - V2.z * V3.w)
           - V1.z * (V3.x * V2.w - V2.x * V3.w)
           + V1.w * (V3.x * V2.z - V2.x * V3.z);
                                    
Result.z = V1.x * (V2.y * V3.w - V3.y * V2.w)
           - V1.y * (V2.x * V3.w - V3.x * V2.w)
           + V1.w * (V2.x * V3.y - V3.x * V2.y);

Result.w = V1.x * (V3.y * V2.z - V2.y * V3.z)
           - V1.y * (V3.x * V2.z - V2.x * V3.z)
           + V1.z * (V3.x * V2.y - V2.x * V3.y);

return Result;
        

Platform Requirements

Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.

Requirements

Namespace

Use DirectX.

Header

DirectXMath.h

See also

DirectXMath Library 4D Vector Geometric Functions

 

 

Show:
© 2016 Microsoft