Preparation code

<script src="https://raw.github.com/mrdoob/three.js/master/build/three.min.js"></script>
<script>
  Benchmark.prototype.setup = function() {
    var A = new THREE.Vector3();
    var B = new THREE.Vector3();
    var C = new THREE.Vector3();
    
    function setFromCoplanarPoints1( a, b, c ) {
        var normal = THREE.Plane.__v1.sub( c, b ).crossSelf(
                     THREE.Plane.__v2.sub( a, b ) ).normalize();
        return normal;
    }
    
    var setFromCoplanarPoints2 = (function() {
        var v1 = new THREE.Vector3();
        var v2 = new THREE.Vector3();
        return function ( a, b, c ) {
            var normal = v1.sub( c, b ).crossSelf( v2.sub( a, b ) ).normalize();
            return normal;
        };
    })();
    
  };
</script>

Test runner

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A.set(Math.random(), Math.random(), Math.random());
B.set(Math.random(), Math.random(), Math.random());
C.set(Math.random(), Math.random(), Math.random());
var tmp = setFromCoplanarPoints1(A, B, C);

A.set(Math.random(), Math.random(), Math.random());
B.set(Math.random(), Math.random(), Math.random());
C.set(Math.random(), Math.random(), Math.random());
var tmp = setFromCoplanarPoints2(A, B, C);

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Tapio on 14th January 2013
• Revision 2: published on 14th January 2013
• Revision 5: published on 16th January 2013

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