190 lines
6.8 KiB
HTML
190 lines
6.8 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>FlightHelmet</title>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width,user-scalable=no,initial-scale=1">
|
|
<link href="favicon.png" rel="icon" type="image/x-icon" />
|
|
<style>
|
|
html, body { height: 100%; }
|
|
body { margin: 0; overflow: hidden; }
|
|
#container { position: relative; height: 100%; }
|
|
canvas { position: absolute; width: 100%; height: 100%; }
|
|
#messages { position: absolute; width: 100%; height: 100%; padding-left: 10px; color:blue; pointer-events: none; }
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div id="container">
|
|
<canvas></canvas>
|
|
<pre id="messages"></pre>
|
|
</div>
|
|
<script src="filament.js"></script>
|
|
<script src="gl-matrix-min.js"></script>
|
|
<script src="gltumble.min.js"></script>
|
|
<script>
|
|
|
|
const env = 'default_env';
|
|
const ibl_url = `${env}/${env}_ibl.ktx`;
|
|
const sky_url = `${env}/${env}_skybox.ktx`;
|
|
const mesh_url = 'FlightHelmet.gltf';
|
|
|
|
Filament.init([mesh_url, ibl_url, sky_url], () => {
|
|
window.gltfio = Filament.gltfio;
|
|
window.Fov = Filament.Camera$Fov;
|
|
window.LightType = Filament.LightManager$Type;
|
|
window.IndirectLight = Filament.IndirectLight;
|
|
window.app = new App(document.getElementsByTagName('canvas')[0]);
|
|
});
|
|
|
|
class App {
|
|
constructor(canvas) {
|
|
this.canvas = canvas;
|
|
const engine = this.engine = Filament.Engine.create(this.canvas);
|
|
const scene = this.scene = engine.createScene();
|
|
this.trackball = new Trackball(canvas, {startSpin: 0.035});
|
|
|
|
const messages = document.getElementById('messages');
|
|
|
|
canvas.addEventListener('pointerdown', evt => {
|
|
const x = evt.clientX;
|
|
const y = this.canvas.getBoundingClientRect().height - 1 - evt.clientY;
|
|
const dpr = window.devicePixelRatio;
|
|
this.view.pick(x * dpr, y * dpr, (results) => {
|
|
const name = this.asset.getName(results.renderable);
|
|
messages.innerText = name ? ('Picked ' + name) : '';
|
|
});
|
|
});
|
|
|
|
const indirectLight = this.ibl = engine.createIblFromKtx1(ibl_url);
|
|
this.scene.setIndirectLight(indirectLight);
|
|
|
|
const iblDirection = IndirectLight.getDirectionEstimate(indirectLight.shfloats);
|
|
const iblColor = IndirectLight.getColorEstimate(indirectLight.shfloats, iblDirection);
|
|
const iblIntensity = 20000;
|
|
|
|
indirectLight.setIntensity(iblIntensity);
|
|
|
|
// Rotate the IBL so that a bright light is behind the helmet, to show off bloom.
|
|
const mat = [];
|
|
const radians = 3.14;
|
|
mat3.fromRotation(mat, radians, [0, 1, 0]);
|
|
indirectLight.setRotation(mat);
|
|
|
|
const skybox = engine.createSkyFromKtx1(sky_url);
|
|
this.scene.setSkybox(skybox);
|
|
|
|
const sunlight = Filament.EntityManager.get().create();
|
|
Filament.LightManager.Builder(LightType.SUN)
|
|
.color(iblColor.slice(0, 3))
|
|
.intensity(iblColor[3] * iblIntensity)
|
|
.direction(iblDirection)
|
|
.sunAngularRadius(1.9)
|
|
.castShadows(true)
|
|
.sunHaloSize(10.0)
|
|
.sunHaloFalloff(80.0)
|
|
.build(engine, sunlight);
|
|
this.scene.addEntity(sunlight);
|
|
|
|
const loader = this.loader = engine.createAssetLoader();
|
|
|
|
this.allowRefresh = false;
|
|
const asset = this.asset = loader.createAsset(mesh_url);
|
|
this.assetRoot = this.asset.getRoot();
|
|
|
|
// Crudely indicate progress by printing the URI of each resource as it is loaded.
|
|
const onFetched = (uri) => messages.innerText += `Downloaded ${uri}\n`;
|
|
|
|
const onDone = () => {
|
|
this.allowRefresh = true;
|
|
|
|
// Clear the progress indication messages.
|
|
messages.innerText = "";
|
|
};
|
|
asset.loadResources(onDone, onFetched);
|
|
|
|
const cameraEntity = Filament.EntityManager.get().create();
|
|
this.camera = engine.createCamera(cameraEntity);
|
|
|
|
const colorGrading = Filament.ColorGrading.Builder()
|
|
.toneMapping(Filament.ColorGrading$ToneMapping.ACES_LEGACY)
|
|
.build(engine);
|
|
|
|
this.swapChain = engine.createSwapChain();
|
|
this.renderer = engine.createRenderer();
|
|
this.view = engine.createView();
|
|
this.view.setVignetteOptions({ midPoint: 0.8, enabled: true });
|
|
|
|
this.view.setBloomOptions({ strength: 0.2, enabled: true });
|
|
|
|
this.view.setCamera(this.camera);
|
|
this.view.setScene(this.scene);
|
|
this.view.setColorGrading(colorGrading);
|
|
this.resize();
|
|
this.render = this.render.bind(this);
|
|
this.resize = this.resize.bind(this);
|
|
this.refresh = this.refresh.bind(this);
|
|
window.addEventListener('resize', this.resize);
|
|
window.addEventListener('dblclick', this.refresh);
|
|
window.requestAnimationFrame(this.render);
|
|
}
|
|
|
|
// Test for memory leaks by destroying and recreating the asset.
|
|
refresh() {
|
|
if (!this.allowRefresh) {
|
|
console.warn('Refresh not allowed while the model is still loading.');
|
|
return;
|
|
}
|
|
console.info('Refreshing...');
|
|
this.allowRefresh = false;
|
|
this.scene.removeEntities(this.asset.getEntities());
|
|
this.loader.destroyAsset(this.asset);
|
|
this.asset = this.loader.createAsset(mesh_url);
|
|
const onDone = () => { this.allowRefresh = true; }
|
|
this.asset.loadResources(onDone);
|
|
}
|
|
|
|
render() {
|
|
// Spin the model according to the trackball controller.
|
|
const tcm = this.engine.getTransformManager();
|
|
const inst = tcm.getInstance(this.assetRoot);
|
|
tcm.setTransform(inst, this.trackball.getMatrix());
|
|
inst.delete();
|
|
|
|
// Gradually add renderables to the scene as their textures become ready.
|
|
let entity;
|
|
const popRenderable = () => {
|
|
entity = this.asset.popRenderable();
|
|
return entity.getId() != 0;
|
|
}
|
|
while (popRenderable()) {
|
|
this.scene.addEntity(entity);
|
|
entity.delete();
|
|
}
|
|
entity.delete();
|
|
|
|
// Render the scene and request the next animation frame.
|
|
if (this.renderer.beginFrame(this.swapChain)) {
|
|
this.renderer.renderView(this.view);
|
|
this.renderer.endFrame();
|
|
}
|
|
this.engine.execute();
|
|
|
|
window.requestAnimationFrame(this.render);
|
|
}
|
|
|
|
resize() {
|
|
const dpr = window.devicePixelRatio;
|
|
const width = this.canvas.width = window.innerWidth * dpr;
|
|
const height = this.canvas.height = window.innerHeight * dpr;
|
|
this.view.setViewport([0, 0, width, height]);
|
|
const y = -0.125, eye = [0, y, 2], center = [0, y, 0], up = [0, 1, 0];
|
|
this.camera.lookAt(eye, center, up);
|
|
const aspect = width / height;
|
|
const fov = aspect < 1 ? Fov.HORIZONTAL : Fov.VERTICAL;
|
|
this.camera.setProjectionFov(30, aspect, 1.0, 10.0, fov);
|
|
}
|
|
}
|
|
</script>
|
|
</body>
|
|
</html>
|