|
|
@@ -0,0 +1,312 @@
|
|
|
+<!DOCTYPE html>
|
|
|
+<html lang="en">
|
|
|
+ <head>
|
|
|
+ <title>three.js webgl - materials - standard</title>
|
|
|
+ <meta charset="utf-8">
|
|
|
+ <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
|
|
|
+ <link type="text/css" rel="stylesheet" href="main.css">
|
|
|
+ </head>
|
|
|
+ <body>
|
|
|
+ <div id="info">
|
|
|
+ <a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - Geometry Compression Example<br />
|
|
|
+ Octahedron and Quantization encoding methods from <a>Tarek Sherif @tsherif</a>
|
|
|
+ </div>
|
|
|
+
|
|
|
+ <script type="module">
|
|
|
+
|
|
|
+ import * as THREE from '../build/three.module.js';
|
|
|
+
|
|
|
+ import Stats from './jsm/libs/stats.module.js';
|
|
|
+
|
|
|
+ import { OrbitControls } from './jsm/controls/OrbitControls.js';
|
|
|
+ import { GeometryCompressionUtils } from './jsm/utils/GeometryCompressionUtils.js';
|
|
|
+ import { GUI } from './jsm/libs/dat.gui.module.js';
|
|
|
+
|
|
|
+ var statsEnabled = true;
|
|
|
+
|
|
|
+ var container, stats, gui;
|
|
|
+
|
|
|
+ var camera, scene, renderer, controls;
|
|
|
+
|
|
|
+ var lights = [];
|
|
|
+
|
|
|
+ // options
|
|
|
+ var data = {
|
|
|
+ "wireframe": false,
|
|
|
+ "texture": false,
|
|
|
+ "detail": 4,
|
|
|
+ "rotationSpeed": 0.1,
|
|
|
+
|
|
|
+ "quantizeEncodePos": false,
|
|
|
+
|
|
|
+ "defaultEncodeNormal": false,
|
|
|
+ "anglesEncodeNormal": false,
|
|
|
+ "oct1bytesEncode": false,
|
|
|
+ "oct2bytesEncode": false,
|
|
|
+
|
|
|
+ "defaultEncodeUV": false,
|
|
|
+
|
|
|
+ "totalGPUMemory": "0 bytes"
|
|
|
+ };
|
|
|
+ var memoryDisplay;
|
|
|
+
|
|
|
+ // geometry params
|
|
|
+ var radius = 100;
|
|
|
+
|
|
|
+ // materials
|
|
|
+ var lineMaterial = new THREE.LineBasicMaterial( { color: 0xaaaaaa, transparent: true, opacity: 0.8 } );
|
|
|
+ var meshMaterial = new THREE.MeshPhongMaterial( { color: 0xffffff, emissive: 0x111111 } );
|
|
|
+
|
|
|
+ // texture
|
|
|
+ var texture = new THREE.TextureLoader().load( 'textures/uv_grid_opengl.jpg' );
|
|
|
+ texture.wrapS = THREE.RepeatWrapping;
|
|
|
+ texture.wrapT = THREE.RepeatWrapping;
|
|
|
+
|
|
|
+ //
|
|
|
+ init();
|
|
|
+ animate();
|
|
|
+
|
|
|
+
|
|
|
+ function init() {
|
|
|
+
|
|
|
+ //
|
|
|
+ container = document.createElement( 'div' );
|
|
|
+ document.body.appendChild( container );
|
|
|
+
|
|
|
+ renderer = new THREE.WebGLRenderer( { antialias: true } );
|
|
|
+ renderer.setPixelRatio( window.devicePixelRatio );
|
|
|
+ renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
+ container.appendChild( renderer.domElement );
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ scene = new THREE.Scene();
|
|
|
+
|
|
|
+ camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.01, 10000000 );
|
|
|
+ camera.position.x = 2 * radius;
|
|
|
+ camera.position.y = 2 * radius;
|
|
|
+ camera.position.z = 2 * radius;
|
|
|
+
|
|
|
+ controls = new OrbitControls( camera, renderer.domElement );
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ lights[ 0 ] = new THREE.PointLight( 0xffffff, 1, 0 );
|
|
|
+ lights[ 1 ] = new THREE.PointLight( 0xffffff, 1, 0 );
|
|
|
+ lights[ 2 ] = new THREE.PointLight( 0xffffff, 1, 0 );
|
|
|
+
|
|
|
+ lights[ 0 ].position.set( 0, 2 * radius, 0 );
|
|
|
+ lights[ 1 ].position.set( 2 * radius, - 2 * radius, 2 * radius );
|
|
|
+ lights[ 2 ].position.set( - 2 * radius, - 2 * radius, - 2 * radius );
|
|
|
+
|
|
|
+ scene.add( lights[ 0 ] );
|
|
|
+ scene.add( lights[ 1 ] );
|
|
|
+ scene.add( lights[ 2 ] );
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ scene.add( new THREE.AxesHelper( radius * 5 ) );
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ var ballGeom = newGeometry();
|
|
|
+
|
|
|
+ var ballMesh = new THREE.Mesh( ballGeom, meshMaterial );
|
|
|
+ var ballLineSegments = new THREE.LineSegments( new THREE.WireframeGeometry( ballGeom ), lineMaterial );
|
|
|
+ ballLineSegments.visible = data.wireframe;
|
|
|
+
|
|
|
+ scene.add( ballMesh );
|
|
|
+ scene.add( ballLineSegments );
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ gui = new GUI();
|
|
|
+ gui.width = 350;
|
|
|
+
|
|
|
+ function newGeometry() {
|
|
|
+
|
|
|
+ var geom = new THREE.IcosahedronBufferGeometry( radius, data.detail );
|
|
|
+ // var geom = new THREE.CylinderBufferGeometry( 5, 5, 20, 32 );
|
|
|
+ // var geom = new THREE.OctahedronBufferGeometry( radius, data.detail );
|
|
|
+ // var geom = new THREE.BoxBufferGeometry(radius, radius, radius, data.detail, data.detail, data.detail);
|
|
|
+ return geom;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ function generateGeometry() {
|
|
|
+
|
|
|
+ updateGroupGeometry(
|
|
|
+ ballMesh,
|
|
|
+ ballLineSegments,
|
|
|
+ newGeometry(),
|
|
|
+ data );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // updateLineSegments
|
|
|
+ function updateLineSegments() {
|
|
|
+
|
|
|
+ ballLineSegments.visible = data.wireframe;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ var folder = gui.addFolder( 'Scene' );
|
|
|
+ folder.open();
|
|
|
+ folder.add( data, 'wireframe', false ).onChange( updateLineSegments );
|
|
|
+ folder.add( data, 'texture', false ).onChange( generateGeometry );
|
|
|
+ folder.add( data, 'detail', 0, 6, 1 ).onChange( generateGeometry );
|
|
|
+ folder.add( data, 'rotationSpeed', 0, 0.5, 0.1 );
|
|
|
+
|
|
|
+ folder = gui.addFolder( 'Position Compression' );
|
|
|
+ folder.open();
|
|
|
+ folder.add( data, 'quantizeEncodePos', false ).onChange( generateGeometry );
|
|
|
+
|
|
|
+ folder = gui.addFolder( 'Normal Compression' );
|
|
|
+ folder.open();
|
|
|
+ folder.add( data, 'defaultEncodeNormal', false ).onChange( generateGeometry );
|
|
|
+ folder.add( data, 'anglesEncodeNormal', false ).onChange( generateGeometry );
|
|
|
+ folder.add( data, 'oct1bytesEncode', false ).onChange( generateGeometry );
|
|
|
+ folder.add( data, 'oct2bytesEncode', false ).onChange( generateGeometry );
|
|
|
+
|
|
|
+ folder = gui.addFolder( 'UV Compression' );
|
|
|
+ folder.open();
|
|
|
+ folder.add( data, 'defaultEncodeUV', false ).onChange( generateGeometry );
|
|
|
+
|
|
|
+ folder = gui.addFolder( 'Memory Info' );
|
|
|
+ folder.open();
|
|
|
+ memoryDisplay = folder.add( data, 'totalGPUMemory', "0 bytes" );
|
|
|
+ computeGPUMemory( ballMesh );
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ if ( statsEnabled ) {
|
|
|
+
|
|
|
+ stats = new Stats();
|
|
|
+ container.appendChild( stats.dom );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ window.addEventListener( 'resize', onWindowResize, false );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ function onWindowResize() {
|
|
|
+
|
|
|
+ renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
+
|
|
|
+ camera.aspect = window.innerWidth / window.innerHeight;
|
|
|
+ camera.updateProjectionMatrix();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+ function updateLightsPossition() {
|
|
|
+
|
|
|
+ lights.forEach( light => {
|
|
|
+
|
|
|
+ var direction = light.position.clone();
|
|
|
+ direction.applyAxisAngle( new THREE.Vector3( 1, 1, 0 ), data.rotationSpeed / 180 * Math.PI );
|
|
|
+ light.position.add( direction.sub( light.position ) );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ function animate() {
|
|
|
+
|
|
|
+ requestAnimationFrame( animate );
|
|
|
+
|
|
|
+ controls.update();
|
|
|
+ updateLightsPossition();
|
|
|
+
|
|
|
+ renderer.render( scene, camera );
|
|
|
+
|
|
|
+ if ( statsEnabled ) stats.update();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ //
|
|
|
+
|
|
|
+ function updateGroupGeometry( mesh, lineSegments, geometry, data ) {
|
|
|
+
|
|
|
+ if ( geometry.isGeometry ) {
|
|
|
+
|
|
|
+ geometry = new THREE.BufferGeometry().fromGeometry( geometry );
|
|
|
+
|
|
|
+ console.warn( 'THREE.GeometryBrowser: Converted Geometry to BufferGeometry.' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ lineSegments.geometry.dispose();
|
|
|
+ mesh.geometry.dispose();
|
|
|
+
|
|
|
+ lineSegments.geometry = new THREE.WireframeGeometry( geometry );
|
|
|
+ mesh.geometry = geometry;
|
|
|
+ mesh.material = new THREE.MeshPhongMaterial( { color: 0xffffff, emissive: 0x111111 } );
|
|
|
+ mesh.material.map = data.texture ? texture : null;
|
|
|
+
|
|
|
+ var normalEncode = "";
|
|
|
+
|
|
|
+ if ( data.oct1bytesEncode ) {
|
|
|
+
|
|
|
+ /**
|
|
|
+ * It is not recommended to use 1-byte octahedron normals encoding unless you want to extremely reduce the memory usage
|
|
|
+ * As it makes vertex data not aligned to a 4 byte boundary which may harm some WebGL implementations and sometimes the normal distortion is visible
|
|
|
+ * Please refer to @zeux 's comments in https://github.com/mrdoob/three.js/pull/18208
|
|
|
+ */
|
|
|
+ normalEncode = "OCT1Byte";
|
|
|
+
|
|
|
+ } else if ( data.oct2bytesEncode ) {
|
|
|
+
|
|
|
+ normalEncode = "OCT2Byte";
|
|
|
+
|
|
|
+ } else if ( data.anglesEncodeNormal ) {
|
|
|
+
|
|
|
+ normalEncode = "ANGLES";
|
|
|
+
|
|
|
+ } else if ( data.defaultEncodeNormal ) {
|
|
|
+
|
|
|
+ normalEncode = "DEFAULT";
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( normalEncode != "" ) {
|
|
|
+
|
|
|
+ GeometryCompressionUtils.compressNormals( mesh, normalEncode );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( data.quantizeEncodePos ) {
|
|
|
+
|
|
|
+ GeometryCompressionUtils.compressPositions( mesh );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( data.defaultEncodeUV ) {
|
|
|
+
|
|
|
+ GeometryCompressionUtils.compressUvs( mesh );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ computeGPUMemory( mesh );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ function computeGPUMemory( mesh ) {
|
|
|
+
|
|
|
+ let posBytes = mesh.geometry.attributes.position.bytes || mesh.geometry.attributes.position.array.length * 4;
|
|
|
+ let normBytes = mesh.geometry.attributes.normal.bytes || mesh.geometry.attributes.normal.array.length * 4;
|
|
|
+ let uvBytes = mesh.geometry.attributes.uv.bytes || mesh.geometry.attributes.uv.array.length * 4;
|
|
|
+ memoryDisplay.setValue( posBytes + normBytes + uvBytes + " bytes" );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ </script>
|
|
|
+
|
|
|
+ </body>
|
|
|
+</html>
|
Mr.doob