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155 lines
4.1 KiB
HTML
155 lines
4.1 KiB
HTML
2 months ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgpu - shadowmap + opacity</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - shadowmap + opacity
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</div>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.webgpu.js",
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"three/webgpu": "../build/three.webgpu.js",
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"three/tsl": "../build/three.tsl.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { Fn, mix } from 'three/tsl';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
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let camera, scene, renderer;
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init();
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async function init() {
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const container = document.createElement( 'div' );
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document.body.appendChild( container );
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 40 );
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camera.position.set( - 4, 2, 6 );
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renderer = new THREE.WebGPURenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setAnimationLoop( render );
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renderer.toneMapping = THREE.AgXToneMapping;
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renderer.toneMappingExposure = 1.5;
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renderer.shadowMap.enabled = true;
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container.appendChild( renderer.domElement );
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scene = new THREE.Scene();
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scene.background = new THREE.Color( 0x9e9eff );
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// light + shadow
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const hemi = new THREE.AmbientLight( 0xffffff, .5 );
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scene.add( hemi );
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const dirLight = new THREE.DirectionalLight( 0x6666ff, 10 );
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dirLight.position.set( 3, 5, 17 );
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dirLight.castShadow = true;
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dirLight.shadow.camera.near = 0.1;
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dirLight.shadow.camera.far = 50;
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dirLight.shadow.camera.right = 5;
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dirLight.shadow.camera.left = - 5;
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dirLight.shadow.camera.top = 5;
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dirLight.shadow.camera.bottom = - 5;
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dirLight.shadow.mapSize.width = 2048;
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dirLight.shadow.mapSize.height = 2048;
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dirLight.shadow.radius = 4;
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dirLight.shadow.bias = - 0.0005;
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dirLight.shadow.autoUpdate = false;
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dirLight.shadow.needsUpdate = true;
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scene.add( dirLight );
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//
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const loader = new GLTFLoader();
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const gltf = await loader.loadAsync( 'models/gltf/DragonAttenuation.glb' );
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gltf.scene.position.set( 0, 0, - .5 );
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const floor = gltf.scene.children[ 0 ];
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floor.scale.x += 4;
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floor.scale.y += 4;
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const dragon = gltf.scene.children[ 1 ];
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dragon.position.set( - 1.5, - 0.8, 1 );
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const dragon2 = dragon.clone();
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dragon2.material = dragon.material.clone();
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dragon2.material.attenuationColor = new THREE.Color( 0xff0000 );
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dragon2.position.x += 4;
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gltf.scene.add( dragon2 );
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// shadow node
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const customShadow = Fn( ( [ color, opacity = 1 ] ) => {
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//return vec4( color, opacity ); // opacity by blending
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return mix( 1, color, opacity ); // opacity by color
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} );
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// apply shadow
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floor.receiveShadow = true;
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dragon.castShadow = dragon2.castShadow = true;
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dragon.receiveShadow = dragon2.receiveShadow = true;
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dragon.material.castShadowNode = customShadow( dragon.material.attenuationColor );
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dragon2.material.castShadowNode = customShadow( dragon2.material.attenuationColor );
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//
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scene.add( gltf.scene );
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const controls = new OrbitControls( camera, renderer.domElement );
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controls.minDistance = 0.1;
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controls.maxDistance = 10;
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controls.target.set( 0, 0, 0 );
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controls.update();
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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//
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function render() {
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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