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XMUBYTE4 union

Describes a 4D vector where each component is a unsigned integer, 8-bits (1 byte) in length.

A 4D vector where each component is a unsigned integer, 8-bits (1 byte) in length.

For a list of additional functionality such as constructors and operators that are available using XMUBYTE4 when you are programming in C++, see XMUBYTE4 Extensions.

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

Syntax


union XMUBYTE4 {
  union {
    struct {
      uint8_t x;
      uint8_t y;
      uint8_t z;
      uint8_t w;
    };
    uint32_t v;
  };
};

Members

x

Unsigned 8-bit integer value in the range [0, 255] describing the x-coordinate of the vector.

y

Unsigned 8-bit integer value in the range [0, 255] describing the y-coordinate of the vector.

z

Unsigned 8-bit integer value in the range [0, 255] describing the z-coordinate of the vector.

w

Unsigned 8-bit integer value in the range [0, 255] describing the w-coordinate of the vector.

v

Unsigned 32-bit 8-bit integer representing the 4D vector.

Remarks

XMUBYTE4 can be loaded into instances of XMVECTOR by using XMLoadUByte4.

Instances of XMVECTOR can be stored into an instance of XMUBYTE4 with XMStoreUByte4.

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

XMUBYTE4 Extensions

 

 

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