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.
221 lines
6.2 KiB
221 lines
6.2 KiB
3 years ago
|
<!DOCTYPE html>
|
||
|
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>three.js webgl - multiple renderers</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">
|
||
|
|
<style>
|
||
|
|
body {
|
||
|
|
background-color: #fff;
|
||
|
|
color: #444;
|
||
|
|
}
|
||
|
|
a {
|
||
|
|
color: #08f;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
|
||
|
|
<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - multiple renderers</div>
|
||
|
|
|
||
|
|
<!-- 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';
|
||
|
|
|
||
|
|
let camera, scene, renderer1, renderer2;
|
||
|
|
|
||
|
|
let mesh1, mesh2, mesh3;
|
||
|
|
const color = new THREE.Color();
|
||
|
|
|
||
|
|
init();
|
||
|
|
animate();
|
||
|
|
|
||
|
|
function init() {
|
||
|
|
|
||
|
|
camera = new THREE.PerspectiveCamera( 20, window.innerWidth / ( window.innerHeight / 2 ), 1, 10000 );
|
||
|
|
|
||
|
|
scene = new THREE.Scene();
|
||
|
|
scene.background = new THREE.Color( 0xffffff );
|
||
|
|
|
||
|
|
const light1 = new THREE.DirectionalLight( 0xffffff );
|
||
|
|
light1.position.set( 0, 0, 1 );
|
||
|
|
scene.add( light1 );
|
||
|
|
|
||
|
|
const light2 = new THREE.DirectionalLight( 0xffff00, 0.75 );
|
||
|
|
light2.position.set( 0, 0, - 1 );
|
||
|
|
scene.add( light2 );
|
||
|
|
|
||
|
|
// shadow
|
||
|
|
|
||
|
|
const canvas = document.createElement( 'canvas' );
|
||
|
|
canvas.width = 128;
|
||
|
|
canvas.height = 128;
|
||
|
|
|
||
|
|
const context = canvas.getContext( '2d' );
|
||
|
|
const gradient = context.createRadialGradient( canvas.width / 2, canvas.height / 2, 0, canvas.width / 2, canvas.height / 2, canvas.width / 2 );
|
||
|
|
gradient.addColorStop( 0.1, 'rgba(210,210,210,1)' );
|
||
|
|
gradient.addColorStop( 1, 'rgba(255,255,255,1)' );
|
||
|
|
|
||
|
|
context.fillStyle = gradient;
|
||
|
|
context.fillRect( 0, 0, canvas.width, canvas.height );
|
||
|
|
|
||
|
|
const shadowTexture = new THREE.CanvasTexture( canvas );
|
||
|
|
|
||
|
|
const shadowMaterial = new THREE.MeshBasicMaterial( { map: shadowTexture } );
|
||
|
|
const shadowGeo = new THREE.PlaneGeometry( 300, 300, 1, 1 );
|
||
|
|
|
||
|
|
let shadowMesh;
|
||
|
|
|
||
|
|
shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
|
||
|
|
shadowMesh.position.y = - 250;
|
||
|
|
shadowMesh.rotation.x = - Math.PI / 2;
|
||
|
|
scene.add( shadowMesh );
|
||
|
|
|
||
|
|
shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
|
||
|
|
shadowMesh.position.x = - 400;
|
||
|
|
shadowMesh.position.y = - 250;
|
||
|
|
shadowMesh.rotation.x = - Math.PI / 2;
|
||
|
|
scene.add( shadowMesh );
|
||
|
|
|
||
|
|
shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
|
||
|
|
shadowMesh.position.x = 400;
|
||
|
|
shadowMesh.position.y = - 250;
|
||
|
|
shadowMesh.rotation.x = - Math.PI / 2;
|
||
|
|
scene.add( shadowMesh );
|
||
|
|
|
||
|
|
const radius = 200;
|
||
|
|
|
||
|
|
const geometry1 = new THREE.IcosahedronGeometry( radius, 1 );
|
||
|
|
|
||
|
|
const count = geometry1.attributes.position.count;
|
||
|
|
geometry1.setAttribute( 'color', new THREE.BufferAttribute( new Float32Array( count * 3 ), 3 ) );
|
||
|
|
|
||
|
|
const geometry2 = geometry1.clone();
|
||
|
|
const geometry3 = geometry1.clone();
|
||
|
|
|
||
|
|
const positions1 = geometry1.attributes.position;
|
||
|
|
const positions2 = geometry2.attributes.position;
|
||
|
|
const positions3 = geometry3.attributes.position;
|
||
|
|
const colors1 = geometry1.attributes.color;
|
||
|
|
const colors2 = geometry2.attributes.color;
|
||
|
|
const colors3 = geometry3.attributes.color;
|
||
|
|
|
||
|
|
for ( let i = 0; i < count; i ++ ) {
|
||
|
|
|
||
|
|
color.setHSL( ( positions1.getY( i ) / radius + 1 ) / 2, 1.0, 0.5 );
|
||
|
|
colors1.setXYZ( i, color.r, color.g, color.b );
|
||
|
|
|
||
|
|
color.setHSL( 0, ( positions2.getY( i ) / radius + 1 ) / 2, 0.5 );
|
||
|
|
colors2.setXYZ( i, color.r, color.g, color.b );
|
||
|
|
|
||
|
|
color.setRGB( 1, 0.8 - ( positions3.getY( i ) / radius + 1 ) / 2, 0 );
|
||
|
|
colors3.setXYZ( i, color.r, color.g, color.b );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
const material = new THREE.MeshPhongMaterial( {
|
||
|
|
color: 0xffffff,
|
||
|
|
flatShading: true,
|
||
|
|
vertexColors: true,
|
||
|
|
shininess: 0
|
||
|
|
} );
|
||
|
|
|
||
|
|
const wireframeMaterial = new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, transparent: true } );
|
||
|
|
|
||
|
|
mesh1 = new THREE.Mesh( geometry1, material );
|
||
|
|
mesh1.position.x = - 400;
|
||
|
|
mesh1.rotation.x = - 1.87;
|
||
|
|
scene.add( mesh1 );
|
||
|
|
|
||
|
|
const wireframe1 = new THREE.Mesh( geometry1, wireframeMaterial );
|
||
|
|
mesh1.add( wireframe1 );
|
||
|
|
|
||
|
|
mesh2 = new THREE.Mesh( geometry2, material );
|
||
|
|
mesh2.position.x = 400;
|
||
|
|
scene.add( mesh2 );
|
||
|
|
|
||
|
|
const wireframe2 = new THREE.Mesh( geometry2, wireframeMaterial );
|
||
|
|
mesh2.add( wireframe2 );
|
||
|
|
|
||
|
|
mesh3 = new THREE.Mesh( geometry3, material );
|
||
|
|
scene.add( mesh3 );
|
||
|
|
|
||
|
|
const wireframe3 = new THREE.Mesh( geometry3, wireframeMaterial );
|
||
|
|
mesh3.add( wireframe3 );
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
renderer1 = new THREE.WebGLRenderer( { antialias: true } );
|
||
|
|
renderer1.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer1.setSize( window.innerWidth, window.innerHeight / 2 );
|
||
|
|
document.body.appendChild( renderer1.domElement );
|
||
|
|
|
||
|
|
renderer2 = new THREE.WebGLRenderer();
|
||
|
|
renderer2.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer2.setSize( window.innerWidth, window.innerHeight / 2 );
|
||
|
|
document.body.appendChild( renderer2.domElement );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function animate() {
|
||
|
|
|
||
|
|
requestAnimationFrame( animate );
|
||
|
|
|
||
|
|
// update scene
|
||
|
|
|
||
|
|
mesh1.rotation.z += Math.PI / 500;
|
||
|
|
mesh2.rotation.z += Math.PI / 500;
|
||
|
|
mesh3.rotation.z += Math.PI / 500;
|
||
|
|
|
||
|
|
const position = new THREE.Vector3();
|
||
|
|
const color = new THREE.Color();
|
||
|
|
|
||
|
|
let time = performance.now() / 500;
|
||
|
|
|
||
|
|
const positions = mesh3.geometry.attributes.position;
|
||
|
|
const colors = mesh3.geometry.attributes.color;
|
||
|
|
|
||
|
|
for ( let i = 0, l = positions.count; i < l; i ++ ) {
|
||
|
|
|
||
|
|
position.fromArray( positions.array, i * 3 );
|
||
|
|
|
||
|
|
color.setRGB( 1, Math.sin( time + position.x ), Math.cos( time * 2.123 + position.x ) );
|
||
|
|
colors.setXYZ( i, color.r, color.g, color.b );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
colors.needsUpdate = true;
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
time = performance.now() / 2000;
|
||
|
|
|
||
|
|
camera.position.x = Math.sin( time ) * 1800;
|
||
|
|
camera.position.z = Math.cos( time ) * 1800;
|
||
|
|
|
||
|
|
camera.lookAt( scene.position );
|
||
|
|
|
||
|
|
renderer1.render( scene, camera );
|
||
|
|
renderer2.render( scene, camera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|