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.

XMQuaternionIsIdentity method

Tests whether a specific quaternion is the identity quaternion.

Syntax


bool XMQuaternionIsIdentity(
  [in] XMVECTOR Q
);

Parameters

Q [in]

Quaternion to test.

Return value

Returns true if Q is the identity quaternion, or false otherwise.

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

Namespace

Use DirectX.

Header

DirectXMath.h

See also

DirectXMath Library Quaternion Functions

 

 

Show:
© 2016 Microsoft