73 lines
2.5 KiB
TypeScript
73 lines
2.5 KiB
TypeScript
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import * as Filament from "filament";
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Filament.init([], () => {
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window["app"] = new App(document.getElementsByTagName('canvas')[0]);
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});
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class App {
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public readonly camera: Filament.Camera;
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private canvas: HTMLCanvasElement;
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private engine: Filament.Engine;
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private scene: Filament.Scene;
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private view: Filament.View;
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private swapChain: Filament.SwapChain;
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private renderer: Filament.Renderer;
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private bgcolor: number[];
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constructor(canvas) {
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this.canvas = canvas;
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this.engine = Filament.Engine.create(canvas);
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this.scene = this.engine.createScene();
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this.swapChain = this.engine.createSwapChain();
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this.renderer = this.engine.createRenderer();
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this.camera = this.engine.createCamera();
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this.view = this.engine.createView();
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this.view.setCamera(this.camera);
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this.view.setScene(this.scene);
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const eye = [0, 0, 4], center = [0, 0, 0], up = [0, 1, 0];
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this.camera.lookAt(eye, center, up);
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this.resize();
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this.bgcolor = [0.2, 0.4, 0.6, 1.0];
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this.resize = this.resize.bind(this);
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this.render = this.render.bind(this);
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window.requestAnimationFrame(this.render);
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window.addEventListener('resize', this.resize);
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}
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render() {
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this.view.setClearColor(this.bgcolor);
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this.bgcolor[1] = (this.bgcolor[1] + 0.01) % 1.0;
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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 aspect = width / height;
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const Fov = Filament.Camera$Fov, fov = aspect < 1 ? Fov.HORIZONTAL : Fov.VERTICAL;
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this.camera.setProjectionFov(45, aspect, 1.0, 10.0, fov);
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}
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}
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