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.
246 lines
5.6 KiB
246 lines
5.6 KiB
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js webgl - clipping planes</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 Stats from 'three/addons/libs/stats.module.js';
|
|
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
|
|
|
|
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
|
|
|
|
let camera, scene, renderer, startTime, object, stats;
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
camera = new THREE.PerspectiveCamera( 36, window.innerWidth / window.innerHeight, 0.25, 16 );
|
|
|
|
camera.position.set( 0, 1.3, 3 );
|
|
|
|
scene = new THREE.Scene();
|
|
|
|
// Lights
|
|
|
|
scene.add( new THREE.AmbientLight( 0x505050 ) );
|
|
|
|
const spotLight = new THREE.SpotLight( 0xffffff );
|
|
spotLight.angle = Math.PI / 5;
|
|
spotLight.penumbra = 0.2;
|
|
spotLight.position.set( 2, 3, 3 );
|
|
spotLight.castShadow = true;
|
|
spotLight.shadow.camera.near = 3;
|
|
spotLight.shadow.camera.far = 10;
|
|
spotLight.shadow.mapSize.width = 1024;
|
|
spotLight.shadow.mapSize.height = 1024;
|
|
scene.add( spotLight );
|
|
|
|
const dirLight = new THREE.DirectionalLight( 0x55505a, 1 );
|
|
dirLight.position.set( 0, 3, 0 );
|
|
dirLight.castShadow = true;
|
|
dirLight.shadow.camera.near = 1;
|
|
dirLight.shadow.camera.far = 10;
|
|
|
|
dirLight.shadow.camera.right = 1;
|
|
dirLight.shadow.camera.left = - 1;
|
|
dirLight.shadow.camera.top = 1;
|
|
dirLight.shadow.camera.bottom = - 1;
|
|
|
|
dirLight.shadow.mapSize.width = 1024;
|
|
dirLight.shadow.mapSize.height = 1024;
|
|
scene.add( dirLight );
|
|
|
|
// ***** Clipping planes: *****
|
|
|
|
const localPlane = new THREE.Plane( new THREE.Vector3( 0, - 1, 0 ), 0.8 );
|
|
const globalPlane = new THREE.Plane( new THREE.Vector3( - 1, 0, 0 ), 0.1 );
|
|
|
|
// Geometry
|
|
|
|
const material = new THREE.MeshPhongMaterial( {
|
|
color: 0x80ee10,
|
|
shininess: 100,
|
|
side: THREE.DoubleSide,
|
|
|
|
// ***** Clipping setup (material): *****
|
|
clippingPlanes: [ localPlane ],
|
|
clipShadows: true
|
|
|
|
} );
|
|
|
|
const geometry = new THREE.TorusKnotGeometry( 0.4, 0.08, 95, 20 );
|
|
|
|
object = new THREE.Mesh( geometry, material );
|
|
object.castShadow = true;
|
|
scene.add( object );
|
|
|
|
const ground = new THREE.Mesh(
|
|
new THREE.PlaneGeometry( 9, 9, 1, 1 ),
|
|
new THREE.MeshPhongMaterial( { color: 0xa0adaf, shininess: 150 } )
|
|
);
|
|
|
|
ground.rotation.x = - Math.PI / 2; // rotates X/Y to X/Z
|
|
ground.receiveShadow = true;
|
|
scene.add( ground );
|
|
|
|
// Stats
|
|
|
|
stats = new Stats();
|
|
document.body.appendChild( stats.dom );
|
|
|
|
// Renderer
|
|
|
|
renderer = new THREE.WebGLRenderer();
|
|
renderer.shadowMap.enabled = true;
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
window.addEventListener( 'resize', onWindowResize );
|
|
document.body.appendChild( renderer.domElement );
|
|
|
|
// ***** Clipping setup (renderer): *****
|
|
const globalPlanes = [ globalPlane ],
|
|
Empty = Object.freeze( [] );
|
|
renderer.clippingPlanes = Empty; // GUI sets it to globalPlanes
|
|
renderer.localClippingEnabled = true;
|
|
|
|
// Controls
|
|
|
|
const controls = new OrbitControls( camera, renderer.domElement );
|
|
controls.target.set( 0, 1, 0 );
|
|
controls.update();
|
|
|
|
// GUI
|
|
|
|
const gui = new GUI(),
|
|
folderLocal = gui.addFolder( 'Local Clipping' ),
|
|
propsLocal = {
|
|
|
|
get 'Enabled'() {
|
|
|
|
return renderer.localClippingEnabled;
|
|
|
|
},
|
|
set 'Enabled'( v ) {
|
|
|
|
renderer.localClippingEnabled = v;
|
|
|
|
},
|
|
|
|
get 'Shadows'() {
|
|
|
|
return material.clipShadows;
|
|
|
|
},
|
|
set 'Shadows'( v ) {
|
|
|
|
material.clipShadows = v;
|
|
|
|
},
|
|
|
|
get 'Plane'() {
|
|
|
|
return localPlane.constant;
|
|
|
|
},
|
|
set 'Plane'( v ) {
|
|
|
|
localPlane.constant = v;
|
|
|
|
}
|
|
|
|
},
|
|
|
|
folderGlobal = gui.addFolder( 'Global Clipping' ),
|
|
propsGlobal = {
|
|
|
|
get 'Enabled'() {
|
|
|
|
return renderer.clippingPlanes !== Empty;
|
|
|
|
},
|
|
set 'Enabled'( v ) {
|
|
|
|
renderer.clippingPlanes = v ? globalPlanes : Empty;
|
|
|
|
},
|
|
|
|
get 'Plane'() {
|
|
|
|
return globalPlane.constant;
|
|
|
|
},
|
|
set 'Plane'( v ) {
|
|
|
|
globalPlane.constant = v;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
folderLocal.add( propsLocal, 'Enabled' );
|
|
folderLocal.add( propsLocal, 'Shadows' );
|
|
folderLocal.add( propsLocal, 'Plane', 0.3, 1.25 );
|
|
|
|
folderGlobal.add( propsGlobal, 'Enabled' );
|
|
folderGlobal.add( propsGlobal, 'Plane', - 0.4, 3 );
|
|
|
|
// Start
|
|
|
|
startTime = Date.now();
|
|
|
|
}
|
|
|
|
function onWindowResize() {
|
|
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
|
camera.updateProjectionMatrix();
|
|
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
|
}
|
|
|
|
function animate() {
|
|
|
|
const currentTime = Date.now();
|
|
const time = ( currentTime - startTime ) / 1000;
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
object.position.y = 0.8;
|
|
object.rotation.x = time * 0.5;
|
|
object.rotation.y = time * 0.2;
|
|
object.scale.setScalar( Math.cos( time ) * 0.125 + 0.875 );
|
|
|
|
stats.begin();
|
|
renderer.render( scene, camera );
|
|
stats.end();
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|
|
|