XMXDEC4 union

A 4D vector with x-,y-, and z- components represented as 10 bit signed integer values, and the w-component as a 2 bit unsigned integer value.

Note   See DirectXMath Library Type Equivalences for information about equivalent D3DDECLTYPE, D3DFORMAT, and DXGI_FORMAT objects.
 

Syntax


union XMXDEC4 {
  union {
    struct {
      int32_t  x;
      int32_t  y;
      int32_t  z;
      uint32_t w;
    };
    uint32_t v;
  };
};

Members

x

Signed integer value in the range [-511, 511] describing the x-coordinate of the vector.

y

Signed integer value in the range [-511, 511] describing the y-coordinate of the vector.

z

Signed integer value in the range [-511, 511] describing the z-coordinate of the vector.

w

Unsigned integer value in the range [0, 3] describing the w-coordinate of the vector.

v

Unsigned 32-bit integer representing the 4D vector.

Remarks

XMXDEC4 can be loaded into instances of XMVECTOR by using XMLoadXDec4.

Instances of XMVECTOR can be stored into an instance of XMXDEC4 with XMStoreXDec4.

Namespace: Use DirectX::PackedVector

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

Header

DirectXPackedVector.h

See also

DirectXMath Library Structures
XMXDEC4 Extensions

 

 

Show: