Vector3

new Vector3(x?, y?, z?)

THREE equivalent: THREE.Vector3

Three-component vector used for positions, directions, and scales. All mutation methods return this for chaining.

Differs from THREE.js

x, y, z are private fields accessed via getters/setters. mul() is multiplyScalar with one argument when passed a scalar.

Properties

Name	Type	Description
x	number	X component.
y	number	Y component.
z	number	Z component.
length	number	Euclidean length (read-only).
lengthSq	number	Squared length (read-only, avoids sqrt).

Methods

Method	Description
set(x: number, y: number, z: number): this	Sets all three components.
add(v: Vector3): this	Adds another vector in place.
sub(v: Vector3): this	Subtracts another vector in place.
mul(v: Vector3): this	Component-wise multiplication.
mulScalar(s: number): this	Multiplies all components by a scalar.
cross(v: Vector3): this	Sets this to the cross product of this and v.
dot(v: Vector3): number	Returns the dot product with v.
normalize(): this	Scales the vector to unit length.
distanceTo(v: Vector3): number	Returns the Euclidean distance to v.
applyMatrix4(m: Matrix4): this	Transforms this point by a 4x4 matrix (w = 1).
clone(): Vector3	Returns a new Vector3 with the same components.
copy(v: Vector3): this	Copies components from another vector.