360 lines
16 KiB
HTML
360 lines
16 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en" class="light sidebar-visible" dir="ltr">
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<head>
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<title>cube_fl0 - Filament</title>
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<meta name="description" content="">
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var path_to_root = "../../";
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<script src="../../toc.js"></script>
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</head>
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<body>
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<div id="body-container">
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<script>
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try {
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var theme = localStorage.getItem('mdbook-theme');
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var sidebar = localStorage.getItem('mdbook-sidebar');
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if (theme.startsWith('"') && theme.endsWith('"')) {
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localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
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}
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if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
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localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
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try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
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if (theme === null || theme === undefined) { theme = default_theme; }
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const html = document.documentElement;
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html.classList.remove('light')
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html.classList.add(theme);
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html.classList.add("js");
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</script>
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<input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
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<!-- Hide / unhide sidebar before it is displayed -->
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<script>
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var sidebar = null;
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var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
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if (document.body.clientWidth >= 1080) {
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try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
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sidebar = sidebar || 'visible';
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} else {
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sidebar = 'hidden';
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}
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sidebar_toggle.checked = sidebar === 'visible';
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html.classList.remove('sidebar-visible');
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html.classList.add("sidebar-" + sidebar);
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</script>
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<nav id="sidebar" class="sidebar" aria-label="Table of contents">
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<div style="display:flex;align-items:center;justify-content:center">
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<img class="flogo" src="../../images/filament_logo_small.png"></img>
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</div>
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<!-- populated by js -->
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<mdbook-sidebar-scrollbox class="sidebar-scrollbox"></mdbook-sidebar-scrollbox>
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<noscript>
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<iframe class="sidebar-iframe-outer" src="../../toc.html"></iframe>
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</noscript>
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<div id="sidebar-resize-handle" class="sidebar-resize-handle">
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<div class="sidebar-resize-indicator"></div>
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</div>
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</nav>
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<div id="page-wrapper" class="page-wrapper">
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<div class="page">
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<div id="menu-bar-hover-placeholder"></div>
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<div id="menu-bar" class="menu-bar sticky">
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<div class="left-buttons">
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<label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
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<i class="fa fa-bars"></i>
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</label>
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<!-- Filament: disable themes because the markdeep part does not look good for dark themes -->
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<!--
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<button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
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<i class="fa fa-paint-brush"></i>
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</button>
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<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
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<li role="none"><button role="menuitem" class="theme" id="light">Light</button></li>
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<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
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<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
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<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
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<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
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</ul>
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-->
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<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
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<i class="fa fa-search"></i>
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</button>
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</div>
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<h1 class="menu-title">Filament</h1>
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<div class="right-buttons">
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<a href="https://github.com/google/filament" title="Git repository" aria-label="Git repository">
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<i id="git-repository-button" class="fa fa-github"></i>
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</a>
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</div>
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</div>
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<div id="search-wrapper" class="hidden">
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<form id="searchbar-outer" class="searchbar-outer">
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<input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
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</form>
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<div id="searchresults-outer" class="searchresults-outer hidden">
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<div id="searchresults-header" class="searchresults-header"></div>
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<ul id="searchresults">
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</ul>
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</div>
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</div>
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<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
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<script>
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document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
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document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
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Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
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link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
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});
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</script>
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<div id="content" class="content">
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<main>
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<style>
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body {
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margin: 0;
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overflow: hidden;
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}
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canvas {
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touch-action: none;
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width: 100%;
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height: 400px;
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border: 1px solid black;
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}
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</style>
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<p><canvas></canvas></p>
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<script src="../../web/lib/filament.js"></script>
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<script src="../../web/lib/gl-matrix-min.js"></script>
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<script>
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Filament.init(['../../web/assets/cube_fl0/nonlit.filamat'], () => {
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window.VertexAttribute = Filament.VertexAttribute;
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window.AttributeType = Filament.VertexBuffer$AttributeType;
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window.Projection = Filament.Camera$Projection;
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window.Fov = Filament.Camera$Fov;
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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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constructor(canvas) {
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this.canvas = canvas;
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const engine = this.engine = Filament.Engine.create(this.canvas, {}, { forceGLES2Context: true });
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console.log("Engine Config forceGLES2Context:", engine.getConfig().forceGLES2Context);
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this.scene = engine.createScene();
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this.cube = Filament.EntityManager.get().create();
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this.scene.addEntity(this.cube);
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const CUBE_POSITIONS = new Float32Array([
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// Front face
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-1.0, -1.0, 1.0,
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1.0, -1.0, 1.0,
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1.0, 1.0, 1.0,
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-1.0, 1.0, 1.0,
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// Back face
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-1.0, -1.0, -1.0,
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-1.0, 1.0, -1.0,
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1.0, 1.0, -1.0,
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1.0, -1.0, -1.0,
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// Top face
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-1.0, 1.0, -1.0,
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-1.0, 1.0, 1.0,
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1.0, 1.0, 1.0,
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1.0, 1.0, -1.0,
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// Bottom face
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-1.0, -1.0, -1.0,
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1.0, -1.0, -1.0,
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1.0, -1.0, 1.0,
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-1.0, -1.0, 1.0,
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// Right face
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1.0, -1.0, -1.0,
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1.0, 1.0, -1.0,
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1.0, 1.0, 1.0,
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1.0, -1.0, 1.0,
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// Left face
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-1.0, -1.0, -1.0,
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-1.0, -1.0, 1.0,
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-1.0, 1.0, 1.0,
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-1.0, 1.0, -1.0,
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]);
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const CUBE_COLORS = new Uint32Array([
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// Front face (red)
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0xff0000ff, 0xff0000ff, 0xff0000ff, 0xff0000ff,
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// Back face (green)
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0xff00ff00, 0xff00ff00, 0xff00ff00, 0xff00ff00,
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// Top face (blue)
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0xffff0000, 0xffff0000, 0xffff0000, 0xffff0000,
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// Bottom face (yellow)
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0xff00ffff, 0xff00ffff, 0xff00ffff, 0xff00ffff,
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// Right face (magenta)
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0xffff00ff, 0xffff00ff, 0xffff00ff, 0xffff00ff,
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// Left face (cyan)
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0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00,
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]);
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const CUBE_INDICES = new Uint16Array([
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0, 1, 2, 0, 2, 3, // front
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4, 5, 6, 4, 6, 7, // back
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8, 9, 10, 8, 10, 11, // top
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12, 13, 14, 12, 14, 15, // bottom
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16, 17, 18, 16, 18, 19, // right
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20, 21, 22, 20, 22, 23, // left
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]);
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this.vb = Filament.VertexBuffer.Builder()
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.vertexCount(24)
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.bufferCount(2)
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.attribute(VertexAttribute.POSITION, 0, AttributeType.FLOAT3, 0, 12)
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.attribute(VertexAttribute.COLOR, 1, AttributeType.UBYTE4, 0, 4)
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.normalized(VertexAttribute.COLOR)
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.build(engine);
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this.vb.setBufferAt(engine, 0, CUBE_POSITIONS);
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this.vb.setBufferAt(engine, 1, CUBE_COLORS);
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this.ib = Filament.IndexBuffer.Builder()
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.indexCount(36)
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.bufferType(Filament.IndexBuffer$IndexType.USHORT)
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.build(engine);
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this.ib.setBuffer(engine, CUBE_INDICES);
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const mat = engine.createMaterial('../../web/assets/cube_fl0/nonlit.filamat');
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const matinst = mat.getDefaultInstance();
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Filament.RenderableManager.Builder(1)
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.boundingBox({ center: [-1, -1, -1], halfExtent: [1, 1, 1] })
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.material(0, matinst)
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.geometry(0, Filament.RenderableManager$PrimitiveType.TRIANGLES, this.vb, this.ib)
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.build(engine, this.cube);
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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.setSampleCount(4);
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this.view.setCamera(this.camera);
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this.view.setScene(this.scene);
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this.view.setPostProcessingEnabled(false);
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this.renderer.setClearOptions({ clearColor: [0.0, 0.1, 0.2, 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 radians = Date.now() / 1000;
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// Combine rotations around Y and X axes for a spinning effect
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const transformY = mat4.fromRotation(mat4.create(), radians, [0, 1, 0]);
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const transformX = mat4.fromRotation(mat4.create(), radians * 0.5, [1, 0, 0]);
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const transform = mat4.multiply(mat4.create(), transformY, transformX);
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const tcm = this.engine.getTransformManager();
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const inst = tcm.getInstance(this.cube);
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tcm.setTransform(inst, transform);
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inst.delete();
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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 = this.canvas.clientWidth * dpr;
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const height = this.canvas.height = this.canvas.clientHeight * 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(90, aspect, 1.0, 10.0, fov);
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}
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}
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</script>
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</main>
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<nav class="nav-wrapper" aria-label="Page navigation">
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<!-- Mobile navigation buttons -->
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<a rel="prev" href="../../samples/web/animation.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
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<i class="fa fa-angle-left"></i>
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</a>
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<a rel="next prefetch" href="../../samples/web/helmet.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
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<i class="fa fa-angle-right"></i>
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</a>
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<div style="clear: both"></div>
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</nav>
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</div>
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</div>
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<nav class="nav-wide-wrapper" aria-label="Page navigation">
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<a rel="prev" href="../../samples/web/animation.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
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<i class="fa fa-angle-left"></i>
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</a>
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<a rel="next prefetch" href="../../samples/web/helmet.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
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<i class="fa fa-angle-right"></i>
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</a>
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</nav>
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</div>
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<script>
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window.playground_copyable = true;
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</script>
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<script src="../../elasticlunr.min.js"></script>
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<script src="../../mark.min.js"></script>
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<script src="../../searcher.js"></script>
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