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.
175 lines
4.6 KiB
175 lines
4.6 KiB
2 years ago
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>three.js - WebGPU - Custom Lighting Model</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="https://threejs.org" target="_blank" rel="noopener">three.js</a> WebGPU - Custom Lighting Model
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<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/",
|
||
|
|
"three/nodes": "./jsm/nodes/Nodes.js"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<script type="module">
|
||
|
|
|
||
|
|
import * as THREE from 'three';
|
||
|
|
import * as Nodes from 'three/nodes';
|
||
|
|
|
||
|
|
import WebGPU from 'three/addons/capabilities/WebGPU.js';
|
||
|
|
import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
|
||
|
|
|
||
|
|
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
|
||
|
|
|
||
|
|
let camera, scene, renderer;
|
||
|
|
|
||
|
|
let light1, light2, light3;
|
||
|
|
|
||
|
|
init();
|
||
|
|
|
||
|
|
function init() {
|
||
|
|
|
||
|
|
if ( WebGPU.isAvailable() === false ) {
|
||
|
|
|
||
|
|
document.body.appendChild( WebGPU.getErrorMessage() );
|
||
|
|
|
||
|
|
throw new Error( 'No WebGPU support' );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 10 );
|
||
|
|
camera.position.z = 2;
|
||
|
|
|
||
|
|
scene = new THREE.Scene();
|
||
|
|
scene.background = new THREE.Color( 0x222222 );
|
||
|
|
|
||
|
|
// lights
|
||
|
|
|
||
|
|
const sphereGeometry = new THREE.SphereGeometry( 0.02, 16, 8 );
|
||
|
|
|
||
|
|
const addLight = ( hexColor, intensity = 2, distance = 1 ) => {
|
||
|
|
|
||
|
|
const material = new Nodes.MeshStandardNodeMaterial();
|
||
|
|
material.colorNode = new Nodes.ConstNode( new THREE.Color( hexColor ) );
|
||
|
|
material.lightsNode = new Nodes.LightsNode(); // ignore scene lights
|
||
|
|
|
||
|
|
const mesh = new THREE.Mesh( sphereGeometry, material );
|
||
|
|
|
||
|
|
const light = new THREE.PointLight( hexColor, intensity, distance );
|
||
|
|
light.add( mesh );
|
||
|
|
|
||
|
|
scene.add( light );
|
||
|
|
|
||
|
|
return light;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
light1 = addLight( 0xffaa00 );
|
||
|
|
light2 = addLight( 0x0040ff );
|
||
|
|
light3 = addLight( 0x80ff80 );
|
||
|
|
|
||
|
|
//light nodes ( selective lights )
|
||
|
|
|
||
|
|
const allLightsNode = new Nodes.LightsNode().fromLights( [ light1, light2, light3 ] );
|
||
|
|
|
||
|
|
// points
|
||
|
|
|
||
|
|
const points = [];
|
||
|
|
|
||
|
|
for ( let i = 0; i < 3000; i ++ ) {
|
||
|
|
|
||
|
|
const point = new THREE.Vector3().random().subScalar( 0.5 ).multiplyScalar( 2 );
|
||
|
|
points.push( point );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
const geometryPoints = new THREE.BufferGeometry().setFromPoints( points );
|
||
|
|
const materialPoints = new Nodes.PointsNodeMaterial();
|
||
|
|
|
||
|
|
// custom lighting model
|
||
|
|
|
||
|
|
const customLightingModel = new Nodes.ShaderNode( ( inputs ) => {
|
||
|
|
|
||
|
|
const { lightColor, reflectedLight } = inputs;
|
||
|
|
|
||
|
|
reflectedLight.directDiffuse.add( lightColor );
|
||
|
|
|
||
|
|
} );
|
||
|
|
|
||
|
|
const lightingModelContext = new Nodes.ContextNode( allLightsNode, { lightingModelNode: { direct: customLightingModel } } );
|
||
|
|
|
||
|
|
materialPoints.lightsNode = lightingModelContext;
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
const pointCloud = new THREE.Points( geometryPoints, materialPoints );
|
||
|
|
scene.add( pointCloud );
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
renderer = new WebGPURenderer();
|
||
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
renderer.setAnimationLoop( animate );
|
||
|
|
renderer.toneMappingNode = new Nodes.ToneMappingNode( THREE.LinearToneMapping, 1 );
|
||
|
|
renderer.outputEncoding = THREE.sRGBEncoding;
|
||
|
|
document.body.appendChild( renderer.domElement );
|
||
|
|
|
||
|
|
// controls
|
||
|
|
|
||
|
|
const controls = new OrbitControls( camera, renderer.domElement );
|
||
|
|
controls.minDistance = 0;
|
||
|
|
controls.maxDistance = 4;
|
||
|
|
|
||
|
|
// events
|
||
|
|
|
||
|
|
window.addEventListener( 'resize', onWindowResize );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onWindowResize() {
|
||
|
|
|
||
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
||
|
|
camera.updateProjectionMatrix();
|
||
|
|
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function animate() {
|
||
|
|
|
||
|
|
const time = Date.now() * 0.0005;
|
||
|
|
const scale = .5;
|
||
|
|
|
||
|
|
light1.position.x = Math.sin( time * 0.7 ) * scale;
|
||
|
|
light1.position.y = Math.cos( time * 0.5 ) * scale;
|
||
|
|
light1.position.z = Math.cos( time * 0.3 ) * scale;
|
||
|
|
|
||
|
|
light2.position.x = Math.cos( time * 0.3 ) * scale;
|
||
|
|
light2.position.y = Math.sin( time * 0.5 ) * scale;
|
||
|
|
light2.position.z = Math.sin( time * 0.7 ) * scale;
|
||
|
|
|
||
|
|
light3.position.x = Math.sin( time * 0.7 ) * scale;
|
||
|
|
light3.position.y = Math.cos( time * 0.3 ) * scale;
|
||
|
|
light3.position.z = Math.sin( time * 0.5 ) * scale;
|
||
|
|
|
||
|
|
renderer.render( scene, camera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|