mrdoob · sunag · May 3, 2024 · Apr 28, 2024 · Apr 29, 2024 · Apr 29, 2024
diff --git a/examples/files.json b/examples/files.json
@@ -347,6 +347,7 @@
  "webgpu_materials_matcap",
  "webgpu_materials_sss",
  "webgpu_materials_transmission",
+ "webgpu_materials_toon",
  "webgpu_materials_video",
  "webgpu_materialx_noise",
  "webgpu_multiple_rendertargets",

diff --git a/examples/jsm/nodes/functions/ToonLightingModel.js b/examples/jsm/nodes/functions/ToonLightingModel.js
@@ -0,0 +1,49 @@
+import LightingModel from '../core/LightingModel.js';
+import BRDF_Lambert from './BSDF/BRDF_Lambert.js';
+import { diffuseColor } from '../core/PropertyNode.js';
+import { normalGeometry } from '../accessors/NormalNode.js';
+import { tslFn, float, vec2, vec3 } from '../shadernode/ShaderNode.js';
+import { mix, smoothstep } from '../math/MathNode.js';
+import { materialReference } from '../accessors/MaterialReferenceNode.js';
+
+const getGradientIrradiance = tslFn( ( { normal, lightDirection, builder } ) => {
+
+ // dotNL will be from -1.0 to 1.0
+ const dotNL = normal.dot( lightDirection );
+ const coord = vec2( dotNL.mul( 0.5 ).add( 0.5 ), 0.0 );
+
+ if ( builder.material.gradientMap ) {
+
+ const gradientMap = materialReference( 'gradientMap', 'texture' ).context( { getUV: () => coord } );
+
+ return vec3( gradientMap.r );
+
+ } else {
+
+ const fw = coord.fwidth().mul( 0.5 );
+
+ return mix( vec3( 0.7 ), vec3( 1.0 ), smoothstep( float( 0.7 ).sub( fw.x ), float( 0.7 ).add( fw.x ), coord.x ) );
+
+ }
+
+} );
+
+class ToonLightingModel extends LightingModel {
+
+ direct( { lightDirection, lightColor, reflectedLight }, stack, builder ) {
+
+ const irradiance = getGradientIrradiance( { normal: normalGeometry, lightDirection, builder } ).mul( lightColor );
+
+ reflectedLight.directDiffuse.addAssign( irradiance.mul( BRDF_Lambert( { diffuseColor: diffuseColor.rgb } ) ) );
+
+ }
+
+ indirectDiffuse( { irradiance, reflectedLight } ) {
+
+ reflectedLight.indirectDiffuse.addAssign( irradiance.mul( BRDF_Lambert( { diffuseColor } ) ) );
+
+ }
+
+}
+
+export default ToonLightingModel;
diff --git a/examples/jsm/nodes/materials/Materials.js b/examples/jsm/nodes/materials/Materials.js
@@ -12,6 +12,7 @@ export { default as MeshPhongNodeMaterial } from './MeshPhongNodeMaterial.js';
 export { default as MeshStandardNodeMaterial } from './MeshStandardNodeMaterial.js';
 export { default as MeshPhysicalNodeMaterial } from './MeshPhysicalNodeMaterial.js';
 export { default as MeshSSSNodeMaterial } from './MeshSSSNodeMaterial.js';
+export { default as MeshToonNodeMaterial } from './MeshToonNodeMaterial.js';
 export { default as MeshMatcapNodeMaterial } from './MeshMatcapNodeMaterial.js';
 export { default as PointsNodeMaterial } from './PointsNodeMaterial.js';
 export { default as SpriteNodeMaterial } from './SpriteNodeMaterial.js';

diff --git a/examples/jsm/nodes/materials/MeshToonNodeMaterial.js b/examples/jsm/nodes/materials/MeshToonNodeMaterial.js
@@ -0,0 +1,34 @@
+import NodeMaterial, { addNodeMaterial } from './NodeMaterial.js';
+import ToonLightingModel from '../functions/ToonLightingModel.js';
+
+import { MeshToonMaterial } from 'three';
+
+const defaultValues = new MeshToonMaterial();
+
+class MeshToonNodeMaterial extends NodeMaterial {
+
+ constructor( parameters ) {
+
+ super();
+
+ this.isMeshToonNodeMaterial = true;
+
+ this.lights = true;
+
+ this.setDefaultValues( defaultValues );
+
+ this.setValues( parameters );
+
+ }
+
+ setupLightingModel( /*builder*/ ) {
+
+ return new ToonLightingModel();
+
+ }
+
+}
+
+export default MeshToonNodeMaterial;
+
+addNodeMaterial( 'MeshToonNodeMaterial', MeshToonNodeMaterial );
diff --git a/examples/screenshots/webgpu_materials_toon.jpg b/examples/screenshots/webgpu_materials_toon.jpg
diff --git a/examples/webgpu_materials_toon.html b/examples/webgpu_materials_toon.html
@@ -0,0 +1,211 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <title>three.js webgpu - materials - toon</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="container"></div>
+ <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Toon Material</div>
+
+ <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 { MeshBasicNodeMaterial, MeshToonNodeMaterial } from 'three/nodes';
+
+ import WebGPU from 'three/addons/capabilities/WebGPU.js';
+ import WebGL from 'three/addons/capabilities/WebGL.js';
+
+ import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
+
+ import Stats from 'three/addons/libs/stats.module.js';
+
+ import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
+ import { FontLoader } from 'three/addons/loaders/FontLoader.js';
+ import { TextGeometry } from 'three/addons/geometries/TextGeometry.js';
+
+ let container, stats;
+
+ let camera, scene, renderer;
+ let particleLight;
+
+ const loader = new FontLoader();
+ loader.load( 'fonts/gentilis_regular.typeface.json', function ( font ) {
+
+ init( font );
+
+ } );
+
+ function init( font ) {
+
+ if ( WebGPU.isAvailable() === false && WebGL.isWebGL2Available() === false ) {
+
+ document.body.appendChild( WebGPU.getErrorMessage() );
+
+ throw new Error( 'No WebGPU or WebGL2 support' );
+
+ }
+
+ container = document.createElement( 'div' );
+ document.body.appendChild( container );
+
+ camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2500 );
+ camera.position.set( 0.0, 400, 400 * 3.5 );
+
+ //
+
+ scene = new THREE.Scene();
+ scene.background = new THREE.Color( 0x444488 );
+
+ //
+
+ renderer = new WebGPURenderer( { antialias: true } );
+ renderer.setPixelRatio( window.devicePixelRatio );
+ renderer.setSize( window.innerWidth, window.innerHeight );
+ renderer.setAnimationLoop( render );
+ container.appendChild( renderer.domElement );
+
+ // Materials
+
+ const cubeWidth = 400;
+ const numberOfSphersPerSide = 5;
+ const sphereRadius = ( cubeWidth / numberOfSphersPerSide ) * 0.8 * 0.5;
+ const stepSize = 1.0 / numberOfSphersPerSide;
+
+ const geometry = new THREE.SphereGeometry( sphereRadius, 32, 16 );
+
+ for ( let alpha = 0, alphaIndex = 0; alpha <= 1.0; alpha += stepSize, alphaIndex ++ ) {
+
+ const colors = new Uint8Array( alphaIndex + 2 );
+
+ for ( let c = 0; c <= colors.length; c ++ ) {
+
+ colors[ c ] = ( c / colors.length ) * 256;
+
+ }
+
+ const gradientMap = new THREE.DataTexture( colors, colors.length, 1, THREE.RedFormat );
+ gradientMap.needsUpdate = true;
+
+ for ( let beta = 0; beta <= 1.0; beta += stepSize ) {
+
+ for ( let gamma = 0; gamma <= 1.0; gamma += stepSize ) {
+
+ // basic monochromatic energy preservation
+ const diffuseColor = new THREE.Color().setHSL( alpha, 0.5, gamma * 0.5 + 0.1 ).multiplyScalar( 1 - beta * 0.2 );
+
+ const material = new MeshToonNodeMaterial( {
+ color: diffuseColor,
+ gradientMap: gradientMap
+ } );
+
+ const mesh = new THREE.Mesh( geometry, material );
+
+ mesh.position.x = alpha * 400 - 200;
+ mesh.position.y = beta * 400 - 200;
+ mesh.position.z = gamma * 400 - 200;
+
+ scene.add( mesh );
+
+ }
+
+ }
+
+ }
+
+ function addLabel( name, location ) {
+
+ const textGeo = new TextGeometry( name, {
+
+ font: font,
+
+ size: 20,
+ depth: 1,
+ curveSegments: 1
+
+ } );
+
+ const textMaterial = new MeshBasicNodeMaterial();
+ const textMesh = new THREE.Mesh( textGeo, textMaterial );
+ textMesh.position.copy( location );
+ scene.add( textMesh );
+
+ }
+
+ addLabel( '-gradientMap', new THREE.Vector3( - 350, 0, 0 ) );
+ addLabel( '+gradientMap', new THREE.Vector3( 350, 0, 0 ) );
+
+ addLabel( '-diffuse', new THREE.Vector3( 0, 0, - 300 ) );
+ addLabel( '+diffuse', new THREE.Vector3( 0, 0, 300 ) );
+
+ particleLight = new THREE.Mesh(
+ new THREE.SphereGeometry( 4, 8, 8 ),
+ new MeshBasicNodeMaterial( { color: 0xffffff } )
+ );
+ scene.add( particleLight );
+
+ // Lights
+
+ scene.add( new THREE.AmbientLight( 0xc1c1c1, 3 ) );
+
+ const pointLight = new THREE.PointLight( 0xffffff, 2, 800, 0 );
+ particleLight.add( pointLight );
+
+ //
+
+ stats = new Stats();
+ container.appendChild( stats.dom );
+
+ const controls = new OrbitControls( camera, renderer.domElement );
+ controls.minDistance = 200;
+ controls.maxDistance = 2000;
+
+ window.addEventListener( 'resize', onWindowResize );
+
+ }
+
+ function onWindowResize() {
+
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize( window.innerWidth, window.innerHeight );
+
+ }
+
+ //
+
+ function render() {
+
+ const timer = Date.now() * 0.00025;
+
+ particleLight.position.x = Math.sin( timer * 7 ) * 300;
+ particleLight.position.y = Math.cos( timer * 5 ) * 400;
+ particleLight.position.z = Math.cos( timer * 3 ) * 300;
+
+ stats.begin();
+
+ renderer.render( scene, camera );
+
+ stats.end();
+
+ }
+
+ </script>
+
+ </body>
+</html>