AlexAegis/loreplotter

import { Curve, Vector3 } from 'three';

export class AirCurve extends Curve<Vector3> {
    public constructor(private from: Vector3, private to: Vector3) {
        super();
    }

    public getPoint(t): Vector3 {
        const angle = this.from.angleTo(this.to);
        return new Vector3()
            .addVectors(
                this.from.clone().multiplyScalar(Math.sin((1 - t) * angle)),
                this.to.clone().multiplyScalar(Math.sin(t * angle))
            )
            .divideScalar(Math.sin(angle));
    }
}