Defines a four-dimensional vector (x,y,z,w), which is used to efficiently rotate an object about the (x, y, z) vector by the angle theta, where w = cos(theta/2).

Namespace: Microsoft.Xna.Framework
Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)

Syntax

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C#

[TypeConverterAttribute("typeof(Microsoft.Xna.Framework.Design.QuaternionConverter)")]
[SerializableAttribute]
public struct Quaternion : IEquatable<Quaternion>

Remarks

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Quaternions represent a rotation. Typically, they are used for smooth interpolation between two angles, and for avoiding the gimbal lock problem that can occur with euler angles.

See Also

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Reference

Quaternion Members
Microsoft.Xna.Framework Namespace

Programming Guide

Math Overview

Platforms

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Xbox 360, Windows XP SP2, Windows Vista, Zune