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161 lines
4.3 KiB
161 lines
4.3 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - helpers</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - helpers
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</div>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
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import { VertexNormalsHelper } from 'three/addons/helpers/VertexNormalsHelper.js';
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import { VertexTangentsHelper } from 'three/addons/helpers/VertexTangentsHelper.js';
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let scene, renderer;
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let camera, light;
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let vnh;
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let vth;
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init();
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animate();
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function init() {
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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//
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.z = 400;
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scene = new THREE.Scene();
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light = new THREE.PointLight();
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light.position.set( 200, 100, 150 );
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scene.add( light );
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scene.add( new THREE.PointLightHelper( light, 15 ) );
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const gridHelper = new THREE.GridHelper( 400, 40, 0x0000ff, 0x808080 );
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gridHelper.position.y = - 150;
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gridHelper.position.x = - 150;
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scene.add( gridHelper );
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const polarGridHelper = new THREE.PolarGridHelper( 200, 16, 8, 64, 0x0000ff, 0x808080 );
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polarGridHelper.position.y = - 150;
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polarGridHelper.position.x = 200;
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scene.add( polarGridHelper );
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const loader = new GLTFLoader();
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loader.load( 'models/gltf/LeePerrySmith/LeePerrySmith.glb', function ( gltf ) {
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const mesh = gltf.scene.children[ 0 ];
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mesh.geometry.computeTangents(); // generates bad data due to degenerate UVs
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const group = new THREE.Group();
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group.scale.multiplyScalar( 50 );
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scene.add( group );
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// To make sure that the matrixWorld is up to date for the boxhelpers
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group.updateMatrixWorld( true );
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group.add( mesh );
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vnh = new VertexNormalsHelper( mesh, 5 );
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scene.add( vnh );
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vth = new VertexTangentsHelper( mesh, 5 );
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scene.add( vth );
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scene.add( new THREE.BoxHelper( mesh ) );
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const wireframe = new THREE.WireframeGeometry( mesh.geometry );
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let line = new THREE.LineSegments( wireframe );
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line.material.depthTest = false;
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line.material.opacity = 0.25;
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line.material.transparent = true;
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line.position.x = 4;
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group.add( line );
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scene.add( new THREE.BoxHelper( line ) );
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const edges = new THREE.EdgesGeometry( mesh.geometry );
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line = new THREE.LineSegments( edges );
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line.material.depthTest = false;
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line.material.opacity = 0.25;
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line.material.transparent = true;
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line.position.x = - 4;
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group.add( line );
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scene.add( new THREE.BoxHelper( line ) );
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scene.add( new THREE.BoxHelper( group ) );
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scene.add( new THREE.BoxHelper( scene ) );
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} );
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//
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function animate() {
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requestAnimationFrame( animate );
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const time = - performance.now() * 0.0003;
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camera.position.x = 400 * Math.cos( time );
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camera.position.z = 400 * Math.sin( time );
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camera.lookAt( scene.position );
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light.position.x = Math.sin( time * 1.7 ) * 300;
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light.position.y = Math.cos( time * 1.5 ) * 400;
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light.position.z = Math.cos( time * 1.3 ) * 300;
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if ( vnh ) vnh.update();
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if ( vth ) vth.update();
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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