XMSHORTN4 structure

A 4D vector for storing signed, normalized values as signed 16-bit integers, (type int16_t).

For a list of additional functionality such as constructors and operators that are available using XMSHORTN4 when you are programming in C++, see XMSHORTN4 Extensions.

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

Syntax


struct XMSHORTN4 {
  int16_t x;
  int16_t y;
  int16_t z;
  int16_t w;
};

Members

x

Signed 16-bit integer in the range [-32767, 32767] describing the x-coordinate of the vector.

y

Signed 16-bit integer in the range [-32767, 32767] describing the y-coordinate of the vector.

z

Signed 16-bit integer in the range [-32767, 32767] describing the z-coordinate of the vector.

w

Signed 16-bit integer in the range [-32767, 32767] describing the w-coordinate of the vector.

Remarks

Those XMSHORTN4 constructors using floating point arguments require normalized input, which must be in the range of [-1.0.-1.0]. During instantiation, these data are multiplied by 32767.0f, results are rounded, and then assigned to the appropriate members of XMSHORTN4.

XMSHORTN4 can be used to load instances of XMVECTOR from normalized values, by using XMLoadShortN4, which divides each component 32767.0f, rounds the result, and then assigns the components to an XMVECTOR instance.

XMVECTOR instances containing normalized values can be stored into XMSHORTN4 using XMStoreShortN4, which multiplies each component by 32767.0f, rounding the result, before assigning the values to the appropriate XMSHORTN4 members.

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

XMSHORTN4 Extensions

 

 

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