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redball.html
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redball.html
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<!DOCTYPE html>
<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Filament Demo</title>
<link href="https://google.github.io/filament/favicon.png" rel="icon" type="image/x-icon">
<meta name="viewport" content="width=device-width,user-scalable=no,initial-scale=1">
<style>
body { margin: 0; overflow: hidden; }
canvas { touch-action: none; width: 100%; height: 100%; }
</style>
</head>
<body>
<canvas width="1920" height="187"></canvas>
<script src="./js/filament.js"></script>
<script src="./js/gl-matrix-min.js"></script>
<script>
const environ = 'pillars_2k';
const ibl_url = `${environ}/${environ}_ibl.ktx`;
const sky_url = `${environ}/${environ}_skybox.ktx`;
const filamat_url = 'plastic.filamat'
Filament.init([filamat_url, ibl_url, sky_url], () => {
// Create some global aliases to enums for convenience.
window.VertexAttribute = Filament.VertexAttribute;
window.AttributeType = Filament.VertexBuffer$AttributeType;
window.PrimitiveType = Filament.RenderableManager$PrimitiveType;
window.IndexType = Filament.IndexBuffer$IndexType;
window.Fov = Filament.Camera$Fov;
window.LightType = Filament.LightManager$Type;
// Obtain the canvas DOM object and pass it to the App.
const canvas = document.getElementsByTagName('canvas')[0];
window.app = new App(canvas);
});
class App {
constructor(canvas) {
this.canvas = canvas;
const engine = this.engine = Filament.Engine.create(canvas);
const scene = engine.createScene();
const material = engine.createMaterial(filamat_url);
const matinstance = material.createInstance();
const red = [0.8, 0.0, 0.0];
matinstance.setColor3Parameter('baseColor', Filament.RgbType.sRGB, red);
matinstance.setFloatParameter('roughness', 0.5);
matinstance.setFloatParameter('clearCoat', 1.0);
matinstance.setFloatParameter('clearCoatRoughness', 0.3);
const renderable = Filament.EntityManager.get()
.create();
scene.addEntity(renderable);
const icosphere = new Filament.IcoSphere(5);
const vb = Filament.VertexBuffer.Builder()
.vertexCount(icosphere.vertices.length / 3)
.bufferCount(2)
.attribute(VertexAttribute.POSITION, 0, AttributeType.FLOAT3, 0, 0)
.attribute(VertexAttribute.TANGENTS, 1, AttributeType.SHORT4, 0, 0)
.normalized(VertexAttribute.TANGENTS)
.build(engine);
const ib = Filament.IndexBuffer.Builder()
.indexCount(icosphere.triangles.length)
.bufferType(IndexType.USHORT)
.build(engine);
vb.setBufferAt(engine, 0, icosphere.vertices);
vb.setBufferAt(engine, 1, icosphere.tangents);
ib.setBuffer(engine, icosphere.triangles);
Filament.RenderableManager.Builder(1)
.boundingBox({
center: [-1, -1, -1],
halfExtent: [1, 1, 1]
})
.material(0, matinstance)
.geometry(0, PrimitiveType.TRIANGLES, vb, ib)
.build(engine, renderable);
const sunlight = Filament.EntityManager.get()
.create();
scene.addEntity(sunlight);
Filament.LightManager.Builder(LightType.SUN)
.color([0.98, 0.92, 0.89])
.intensity(110000.0)
.direction([0.6, -1.0, -0.8])
.sunAngularRadius(1.9)
.sunHaloSize(10.0)
.sunHaloFalloff(80.0)
.build(engine, sunlight);
const backlight = Filament.EntityManager.get()
.create();
scene.addEntity(backlight);
Filament.LightManager.Builder(LightType.DIRECTIONAL)
.direction([-1, 0, 1])
.intensity(50000.0)
.build(engine, backlight);
const indirectLight = engine.createIblFromKtx(ibl_url);
indirectLight.setIntensity(50000);
scene.setIndirectLight(indirectLight);
const skybox = engine.createSkyFromKtx(sky_url);
scene.setSkybox(skybox);
this.swapChain = engine.createSwapChain();
this.renderer = engine.createRenderer();
this.camera = engine.createCamera();
this.view = engine.createView();
this.view.setCamera(this.camera);
this.view.setScene(scene);
this.resize();
this.render = this.render.bind(this);
this.resize = this.resize.bind(this);
window.addEventListener('resize', this.resize);
window.requestAnimationFrame(this.render);
}
render() {
const eye = [0, 0, 4],
center = [0, 0, 0],
up = [0, 1, 0];
const radians = Date.now() / 10000;
vec3.rotateY(eye, eye, center, radians);
this.camera.lookAt(eye, center, up);
this.renderer.render(this.swapChain, this.view);
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]);
this.camera.setProjectionFov(45, width / height, 1.0, 10.0, Fov.VERTICAL);
}
}
</script>
</body></html>