XMQuaternionLengthSq function (directxmath.h)

Computes the square of the magnitude of a quaternion.

Syntax

XMVECTOR XM_CALLCONV XMQuaternionLengthSq(
  [in] FXMVECTOR Q
) noexcept;

Parameters

[in] Q

Quaternion to measure.

Return value

Returns a vector. The square of the magnitude is replicated into each component.

Remarks

The DirectXMath quaternion functions use an XMVECTOR 4-vector to represent quaternions, where the X, Y, and Z components are the vector part and the W component is the scalar part.

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

Requirement	Value
Target Platform	Windows
Header	directxmath.h

See also

DirectXMath Library Quaternion Functions

XMQuaternionLength