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-<!DOCTYPE html>
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-<html lang="en">
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- <body>
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-
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- <script src="../build/three.min.js"></script>
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- <script src="../examples/js/math/TypeArrayVector3.js"></script>
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-
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- <script>
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-
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- var Benchmark = function ( title, test ) {
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-
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- var titleDom = document.createElement( 'div' );
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- titleDom.style.fontWeight = 'bold';
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- titleDom.textContent = title;
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- document.body.appendChild( titleDom );
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-
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- var msDom = document.createElement( 'div' );
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- document.body.appendChild( msDom );
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-
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- this.run = function () {
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-
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- var start = performance.now();
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-
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- test();
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-
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- msDom.textContent = performance.now() - start;
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-
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- }
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-
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- };
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-
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-
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- var vector11 = new THREE.Vector3( 1.2, 2.3, 3.4 );
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- var vector12 = new THREE.Vector3( 1.2, 2.3, 3.4 );
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- var vector13 = new THREE.Vector3( 1.2, 2.3, 3.4 );
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-
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- var vector21 = new THREE.TypeArrayVector3( 1.2, 2.3, 3.4 );
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- var vector22 = new THREE.TypeArrayVector3( 1.2, 2.3, 3.4 );
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- var vector23 = new THREE.TypeArrayVector3( 1.2, 2.3, 3.4 );
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-
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- var benchmarks = [
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-
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- new Benchmark( 'new Vector3()', function () {
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-
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- for ( var i = 0; i < 10000; i ++ ) {
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-
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- var vector = new THREE.Vector3( 1, 1, 1 );
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-
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- }
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-
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- } ),
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-
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- new Benchmark( 'new TypeArrayVector3()', function () {
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-
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- for ( var i = 0; i < 10000; i ++ ) {
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-
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- var vector = new THREE.TypeArrayVector3( 1, 1, 1 );
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-
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- }
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-
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- } ),
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-
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- new Benchmark( 'Vector3 add()', function () {
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-
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- for ( var i = 0; i < 10000000; i ++ ) {
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-
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- vector11.add( vector12 );
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-
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- }
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-
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- } ),
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-
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- new Benchmark( 'TypeArrayVector3 add()', function () {
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-
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- for ( var i = 0; i < 10000000; i ++ ) {
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-
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- vector21.add( vector22 );
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-
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- }
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-
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- } ),
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-
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- new Benchmark( 'Vector3 addVectors()', function () {
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-
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- for ( var i = 0; i < 10000000; i ++ ) {
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-
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- vector11.addVectors( vector12, vector13 );
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-
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- }
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-
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- } ),
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-
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- new Benchmark( 'TypeArrayVector3 addVectors()', function () {
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-
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- for ( var i = 0; i < 10000000; i ++ ) {
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-
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- vector21.addVectors( vector22, vector23 );
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-
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- }
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-
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- } )
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-
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- ];
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-
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- function update () {
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-
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- vector11 = new THREE.Vector3( Math.random(), Math.random(), Math.random() );
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- vector12 = new THREE.Vector3( Math.random(), Math.random(), Math.random() );
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-
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- vector21 = new THREE.TypeArrayVector3().set( vector11.x, vector11.y, vector11.z );
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- vector22 = new THREE.TypeArrayVector3().set( vector12.x, vector12.y, vector12.z );
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-
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- for ( var i = 0, l = benchmarks.length; i < l; i ++ ) {
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-
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- benchmarks[ i ].run();
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-
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- }
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-
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- setTimeout( update, 2000 );
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-
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- }
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-
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- update();
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-
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- </script>
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-
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- </body>
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-</html>
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Mr.doob