hw1

geometry build

by joe chan June 13, 2018

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/87/three.min.js"></script>

var a = new THREE.Vector3(0, 0, -1);

var b = new THREE.Vector3(4,0,1);

console.log(a,b);
console.log(a.angleTo(b.normalize()))

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