Get world rotation

Questions
1

Hi,

Having a real bad time with this issue :

I have a rotated child object inside a rotated parent object.

const parent = new Object3D();
const child = new Object3D();

parent.add( child );

parent.rotation.x = Math.random();
child.rotation.y = Math.random();

How can I get child’s world space rotation (Euler) ?

I need child orientation in world space for physics calculation.

2

Have you tried calling Object3D.getWorldQuaternion() on the child? You can convert the resulting quaternion to euler values in the next step.

3

Thanks I didn’t know this method, that’s what I needed :+1: