94 lines
3.0 KiB
HTML
94 lines
3.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>glTF Morphing</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,user-scalable=no,initial-scale=1">
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<link href="favicon.png" rel="icon" type="image/x-icon" />
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<style>
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body { margin: 0; overflow: hidden; }
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canvas { touch-action: none; width: 100%; height: 100%; }
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</style>
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</head>
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<body>
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<canvas></canvas>
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<script src="filament.js"></script>
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<script src="gl-matrix-min.js"></script>
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<script src="gltumble.min.js"></script>
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<script>
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const mesh_url = "AnimatedMorphCube.glb";
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Filament.init([mesh_url], () => {
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window.gltfio = Filament.gltfio;
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window.Fov = Filament.Camera$Fov;
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window.app = new App(document.querySelector("canvas"));
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});
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class App {
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constructor(canvas) {
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this.canvas = canvas;
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const engine = this.engine = Filament.Engine.create(this.canvas);
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const scene = this.scene = engine.createScene();
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this.trackball = new Trackball(canvas, {startSpin: 0.035});
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const loader = engine.createAssetLoader();
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const asset = this.asset = loader.createAsset(mesh_url);
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const onDone = () => {
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loader.delete();
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scene.addEntities(asset.getEntities());
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this.animator = asset.getAnimator();
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this.animationStartTime = Date.now();
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};
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asset.loadResources(onDone);
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this.swapChain = engine.createSwapChain();
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this.renderer = engine.createRenderer();
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this.camera = engine.createCamera(Filament.EntityManager.get().create());
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this.view = engine.createView();
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this.view.setCamera(this.camera);
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this.view.setScene(this.scene);
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this.renderer.setClearOptions({clearColor: [0.6, 0.6, 0.6, 1.0], clear: true});
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this.resize();
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this.render = this.render.bind(this);
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this.resize = this.resize.bind(this);
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window.addEventListener("resize", this.resize);
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window.requestAnimationFrame(this.render);
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}
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render() {
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const tcm = this.engine.getTransformManager();
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const inst = tcm.getInstance(this.asset.getRoot());
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tcm.setTransform(inst, this.trackball.getMatrix());
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inst.delete();
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if (this.animator) {
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const ms = Date.now() - this.animationStartTime;
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this.animator.applyAnimation(0, ms / 1000);
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this.animator.updateBoneMatrices();
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}
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this.renderer.render(this.swapChain, this.view);
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window.requestAnimationFrame(this.render);
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}
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resize() {
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const dpr = window.devicePixelRatio;
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const width = this.canvas.width = window.innerWidth * dpr;
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const height = this.canvas.height = window.innerHeight * dpr;
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this.view.setViewport([0, 0, width, height]);
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const eye = [0, 0, 5], center = [0, 0, 0], up = [0, 1, 0];
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this.camera.lookAt(eye, center, up);
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const aspect = width / height;
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const fov = aspect < 1 ? Fov.HORIZONTAL : Fov.VERTICAL;
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this.camera.setProjectionFov(30, aspect, 1.0, 20.0, fov);
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}
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}
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</script>
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</body>
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</html>
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