Pointer Coordinates

// from work with three.js project

// desktop pointer
pointer.x = (event.clientX / window.innerWidth) * 2 - 1;
pointer.y = - (event.clientY / window.innerHeight) * 2 + 1;

// mobile touch
pointer.x = +(event.targetTouches[0].pageX / window.innerWidth) * 2 + -1;
pointer.y = -(event.targetTouches[0].pageY / window.innerHeight) * 2 + 1;

//mobile click
pointer.x = (event.clientX / window.innerWidth) * 2 - 1;
pointer.y = - (event.clientY / window.innerHeight) * 2 + 1;