You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
203 lines
4.9 KiB
203 lines
4.9 KiB
2 years ago
|
<!DOCTYPE html>
|
||
|
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>three.js webgl - modifier - Edge Split modifier</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>
|
||
|
|
|
||
|
|
<!-- Import maps polyfill -->
|
||
|
|
<!-- Remove this when import maps will be widely supported -->
|
||
|
|
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
|
||
|
|
|
||
|
|
<script type="importmap">
|
||
|
|
{
|
||
|
|
"imports": {
|
||
|
|
"three": "../build/three.module.js",
|
||
|
|
"three/addons/": "./jsm/"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<script type="module">
|
||
|
|
|
||
|
|
import * as THREE from 'three';
|
||
|
|
|
||
|
|
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
|
||
|
|
import { OBJLoader } from 'three/addons/loaders/OBJLoader.js';
|
||
|
|
import { EdgeSplitModifier } from 'three/addons/modifiers/EdgeSplitModifier.js';
|
||
|
|
import * as BufferGeometryUtils from 'three/addons/utils/BufferGeometryUtils.js';
|
||
|
|
|
||
|
|
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
|
||
|
|
|
||
|
|
let renderer, scene, camera;
|
||
|
|
let modifier, mesh, baseGeometry;
|
||
|
|
let map;
|
||
|
|
|
||
|
|
const params = {
|
||
|
|
smoothShading: true,
|
||
|
|
edgeSplit: true,
|
||
|
|
cutOffAngle: 20,
|
||
|
|
showMap: false,
|
||
|
|
tryKeepNormals: true,
|
||
|
|
};
|
||
|
|
|
||
|
|
init();
|
||
|
|
|
||
|
|
function init() {
|
||
|
|
|
||
|
|
const info = document.createElement( 'div' );
|
||
|
|
info.style.position = 'absolute';
|
||
|
|
info.style.top = '10px';
|
||
|
|
info.style.width = '100%';
|
||
|
|
info.style.textAlign = 'center';
|
||
|
|
info.innerHTML = '<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Edge Split modifier';
|
||
|
|
document.body.appendChild( info );
|
||
|
|
|
||
|
|
renderer = new THREE.WebGLRenderer( { antialias: true } );
|
||
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
document.body.appendChild( renderer.domElement );
|
||
|
|
|
||
|
|
scene = new THREE.Scene();
|
||
|
|
|
||
|
|
camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight );
|
||
|
|
|
||
|
|
const controls = new OrbitControls( camera, renderer.domElement );
|
||
|
|
controls.addEventListener( 'change', render ); // use if there is no animation loop
|
||
|
|
controls.enableDamping = true;
|
||
|
|
controls.dampingFactor = 0.25;
|
||
|
|
controls.rotateSpeed = 0.35;
|
||
|
|
controls.minZoom = 1;
|
||
|
|
camera.position.set( 0, 0, 4 );
|
||
|
|
|
||
|
|
scene.add( new THREE.HemisphereLight( 0xffffff, 0x444444 ) );
|
||
|
|
|
||
|
|
new OBJLoader().load(
|
||
|
|
'./models/obj/cerberus/Cerberus.obj',
|
||
|
|
function ( group ) {
|
||
|
|
|
||
|
|
const cerberus = group.children[ 0 ];
|
||
|
|
const modelGeometry = cerberus.geometry;
|
||
|
|
|
||
|
|
modifier = new EdgeSplitModifier();
|
||
|
|
baseGeometry = BufferGeometryUtils.mergeVertices( modelGeometry );
|
||
|
|
|
||
|
|
mesh = new THREE.Mesh( getGeometry(), new THREE.MeshStandardMaterial() );
|
||
|
|
mesh.material.flatShading = ! params.smoothShading;
|
||
|
|
mesh.rotateY( - Math.PI / 2 );
|
||
|
|
mesh.scale.set( 3.5, 3.5, 3.5 );
|
||
|
|
mesh.translateZ( 1.5 );
|
||
|
|
scene.add( mesh );
|
||
|
|
|
||
|
|
if ( map !== undefined && params.showMap ) {
|
||
|
|
|
||
|
|
mesh.material.map = map;
|
||
|
|
mesh.material.needsUpdate = true;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
render();
|
||
|
|
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
window.addEventListener( 'resize', onWindowResize );
|
||
|
|
|
||
|
|
new THREE.TextureLoader().load( './models/obj/cerberus/Cerberus_A.jpg', function ( texture ) {
|
||
|
|
|
||
|
|
map = texture;
|
||
|
|
|
||
|
|
if ( mesh !== undefined && params.showMap ) {
|
||
|
|
|
||
|
|
mesh.material.map = map;
|
||
|
|
mesh.material.needsUpdate = true;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
} );
|
||
|
|
|
||
|
|
|
||
|
|
const gui = new GUI( { name: 'Edge split modifier parameters' } );
|
||
|
|
|
||
|
|
gui.add( params, 'showMap' ).onFinishChange( updateMesh );
|
||
|
|
gui.add( params, 'smoothShading' ).onFinishChange( updateMesh );
|
||
|
|
gui.add( params, 'edgeSplit' ).onFinishChange( updateMesh );
|
||
|
|
gui.add( params, 'cutOffAngle' ).min( 0 ).max( 180 ).onFinishChange( updateMesh );
|
||
|
|
gui.add( params, 'tryKeepNormals' ).onFinishChange( updateMesh );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onWindowResize() {
|
||
|
|
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
|
||
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
||
|
|
camera.updateProjectionMatrix();
|
||
|
|
|
||
|
|
render();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function getGeometry() {
|
||
|
|
|
||
|
|
let geometry;
|
||
|
|
|
||
|
|
if ( params.edgeSplit ) {
|
||
|
|
|
||
|
|
geometry = modifier.modify(
|
||
|
|
baseGeometry,
|
||
|
|
params.cutOffAngle * Math.PI / 180,
|
||
|
|
params.tryKeepNormals
|
||
|
|
);
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
geometry = baseGeometry;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
return geometry;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function updateMesh() {
|
||
|
|
|
||
|
|
if ( mesh !== undefined ) {
|
||
|
|
|
||
|
|
mesh.geometry = getGeometry();
|
||
|
|
|
||
|
|
let needsUpdate = mesh.material.flatShading === params.smoothShading;
|
||
|
|
mesh.material.flatShading = params.smoothShading === false;
|
||
|
|
|
||
|
|
if ( map !== undefined ) {
|
||
|
|
|
||
|
|
needsUpdate = needsUpdate || mesh.material.map !== ( params.showMap ? map : null );
|
||
|
|
mesh.material.map = params.showMap ? map : null;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
mesh.material.needsUpdate = needsUpdate;
|
||
|
|
|
||
|
|
render();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function render() {
|
||
|
|
|
||
|
|
renderer.render( scene, camera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|