the tickPhysics method instantiates a date object each tick, thrashing the GC. Three.js created a Clock utility which will help out a bit better
var clock = new THREE.Clock();
clock.start();
function tick () {
requestAnimationFrame(tick);
var delta = clock.getDelta(); // results in what you call a 'timestep'
}
the
tickPhysicsmethod instantiates a date object each tick, thrashing the GC. Three.js created a Clock utility which will help out a bit better