I just did some experimentation with my own camera rig attached to a cannon.js physics object. Forcing the angular velocity every frame kind-of worked, but it leaks and doesn't absolutely stop rotation. What absolutely stopped rotation for me is calling this.  ( just once, not on update ) object.physicsImpostor.executeNativeFunction(function (world, body) {             body.fixedRotation = true;             body.updateMassProperties(); }); So, its simple enough in cannon. I don't se