"Easy" coordinate transformations about sparkar-volts HOT 1 CLOSED

// takes in an object, and outputs it's position in the second argument's space
function transformAcrossSpaces(obj: SceneObjectBase, target: SceneObjectBase | TransformSignal): VectorSignal;

function transformAcrossSpaces(obj: VectorSignal, parentWorldTransform: TransformSignal, target: SceneObjectBase | TransformSignal): VectorSignal;

(async function () {
    const obj = await Scene.root.findFirst('obj');
    const debug = await Scene.root.findFirst('debug');
    const objPosInWorld = obj.parentWorldTransform.applyToPoint(obj.transform.position);
    const inDSpace = debug.parentWorldTransform.inverse().applyToPoint(objPosInWorld);
    debug.transform.position = inDSpace;
    // incorporate first obj rot into the mix by adding both QuaternionSignals 👇
    // (this needs to be done component wise, using the Reactive API, the code below won't work)
    // debug.transform.rotation = obj.transform.rotation + debug.transform.rotation;
})();