Quaternion

new Quaternion(x?, y?, z?, w?)

THREE equivalent: THREE.Quaternion

Unit quaternion for rotation. Synced with Euler on Node via onChange callbacks. All mutation methods return this for chaining.

Differs from THREE.js

premul() instead of premultiply(). No slerp instance method - slerp is handled by QuaternionTrack.

Properties

Name	Type	Description
x	number	X component.
y	number	Y component.
z	number	Z component.
w	number	W component. Default 1.
length	number	Euclidean length (read-only).

Methods

Method	Description
set(x: number, y: number, z: number, w: number): this	Sets all four components.
setFromAxisAngle(axis: Vector3, angle: number): this	Sets the quaternion from an axis and rotation angle.
setFromEuler(euler: Euler): this	Sets the quaternion from Euler angles.
setFromRotationMatrix(m: Matrix4): this	Extracts the rotation quaternion from a matrix.
normalize(): this	Normalizes to unit length.
invert(): this	Conjugates the quaternion (inverts for unit quaternions).
premul(q: Quaternion): this	Pre-multiplies this quaternion by q.
clone(): Quaternion	Returns a new Quaternion with the same components.