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Add updateMatrixWorld benchmark #14027

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Merged
merged 1 commit into from
May 10, 2018
Merged

Add updateMatrixWorld benchmark #14027

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1 change: 1 addition & 0 deletions test/benchmark/benchmarks.html
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
<script src="core/Vector3Storage.js"></script>
<script src="core/Vector3Length.js"></script>
<script src="core/Float32Array.js"></script>
<script src="core/UpdateMatrixWorld.js"></script>
</head>
<body>
<header>
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48 changes: 48 additions & 0 deletions test/benchmark/core/UpdateMatrixWorld.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,48 @@
(function() {

THREE = Bench.THREE;

var position = new THREE.Vector3(1, 1, 1);
var scale = new THREE.Vector3(2, 1, 0.5);
var rotation = new THREE.Quaternion();
rotation.setFromAxisAngle(new THREE.Vector3(0, 1, 0), Math.PI / 8);
var createLocallyOffsetChild = function() {
var child = new THREE.Object3D();
child.position = position;
child.scale = scale;
child.rotation = rotation;
return child;
};

var generateSceneGraph = function(root, depth, breadth, initObject) {
if (depth > 0) {
for (var i = 0; i < breadth; i++) {
var child = initObject();
root.add(child);
generateSceneGraph(child, depth - 1, breadth, initObject);
}
}
return root;
};

var nodeCount = function(root) {
return root.children.reduce(function(acc, x) { return acc + nodeCount(x); }, 1);
};

var rootA = generateSceneGraph(new THREE.Object3D(), 100, 1, createLocallyOffsetChild);
var rootB = generateSceneGraph(new THREE.Object3D(), 3, 10, createLocallyOffsetChild);
var rootC = generateSceneGraph(new THREE.Object3D(), 9, 3, createLocallyOffsetChild);

var s = Bench.newSuite("Update world transforms");

s.add('Update graph depth=100, breadth=1 (' + nodeCount(rootA) + ' nodes)', function() {
rootA.updateMatrixWorld(true);
});
s.add('Update graph depth=3, breadth=10 (' + nodeCount(rootB) + ' nodes)', function() {
rootB.updateMatrixWorld(true);
});
s.add('Update graph depth=9, breadth=3 (' + nodeCount(rootC) + ' nodes)', function() {
rootC.updateMatrixWorld(true);
});

})();