samien
/
three.js
mirror of https://github.com/mrdoob/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgpu - tsl graph</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="example.css">
		<style>
			.dg .property-name {
				width: 20% !important;
			}
		</style>
	</head>
	<body>

		<div id="info">
			<a href="https://threejs.org/" target="_blank" rel="noopener" class="logo-link"></a>

			<div class="title-wrapper">
				<a href="https://threejs.org/" target="_blank" rel="noopener">three.js</a><span>TSL Graph</span>
			</div>

			<small>
				TSL Graph Addons - <a href="https://www.tsl-graph.xyz/" target="_blank" rel="noopener">www.tsl-graph.xyz</a>
			</small>
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.webgpu.js",
					"three/webgpu": "../build/three.webgpu.js",
					"three/tsl": "../build/three.tsl.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three/webgpu';

			import { Fn, abs, fract, fwidth, length, max, saturate, smoothstep, vec3, vec4, positionWorld, float } from 'three/tsl';

			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

			import { HDRLoader } from 'three/addons/loaders/HDRLoader.js';
			import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';

			import { Inspector } from 'three/addons/inspector/Inspector.js';

			import { TSLGraphLoader } from 'three/addons/inspector/addons/tsl-graph/TSLGraphLoader.js';
			import { TSLGraphEditor } from 'three/addons/inspector/addons/tsl-graph/TSLGraphEditor.js';

			let camera, scene, renderer;
			let controls;
			let prefab;

			init();

			async function initTSLGraph() {

				// TSL Graph Editor

				const tslGraph = new TSLGraphEditor();

				renderer.inspector.addTab( tslGraph );
				renderer.inspector.setActiveTab( tslGraph );

				// Create Materials

				const m1 = new THREE.MeshPhysicalNodeMaterial();
				m1.userData.graphId = 'mat_1-physical';

				const m2 = new THREE.MeshStandardNodeMaterial();
				m2.userData.graphId = 'mat_2-standard';

				const m3 = new THREE.MeshPhongNodeMaterial();
				m3.userData.graphId = 'mat_3-phong';

				const m4 = new THREE.MeshBasicNodeMaterial();
				m4.userData.graphId = 'mat_4-basic';

				const materials = [ m1, m2, m3, m4 ];

				for ( let i = 0; i < materials.length; i ++ ) {

					createShaderBall( materials[ i ], new THREE.Vector3( ( i & 1 ) * 4 - 2, 0, ( i & 2 ) * 2 - 2 ) );

				}

				// Initialize

				// Load and apply TSL Graph from a file or from Local Storage if exists
				// Every time a TSL Graph is changed, it will be stored in the local storage

				if ( tslGraph.hasGraphs ) {

					tslGraph.apply( scene );

				} else {

					// Load a TSL Graph from a file

					const tslLoader = new TSLGraphLoader();
					const applier = await tslLoader.setPath( './shaders/' ).loadAsync( 'tsl-graphs.json' );

					applier.apply( scene );

				}

				// Picker a Material

				let boundingBox = null;

				const raycaster = new THREE.Raycaster();
				const pointer = new THREE.Vector2();

				function removeBoundingBox() {

					scene.remove( boundingBox );
					boundingBox.dispose();

				}

				tslGraph.addEventListener( 'change', ( { material } ) => {

					if ( material === null && boundingBox ) {

						removeBoundingBox();

						boundingBox = null;

					}

				} );

				tslGraph.addEventListener( 'remove', ( { graphId } ) => {

					scene.traverse( ( object ) => {

						if ( object.material && object.material.userData && object.material.userData.graphId === graphId ) {

							tslGraph.restoreMaterial( object.material );

						}

					} );

				} );

				const pointerDownPosition = new THREE.Vector2();

				renderer.domElement.addEventListener( 'pointerdown', ( e ) => {

					pointerDownPosition.set( e.clientX, e.clientY );

				} );

				renderer.domElement.addEventListener( 'pointerup', ( e ) => {

					if ( pointerDownPosition.distanceTo( pointer.set( e.clientX, e.clientY ) ) > 2 ) return;

					const rect = renderer.domElement.getBoundingClientRect();
					pointer.x = ( ( e.clientX - rect.left ) / rect.width ) * 2 - 1;
					pointer.y = - ( ( e.clientY - rect.top ) / rect.height ) * 2 + 1;

					raycaster.setFromCamera( pointer, camera );

					const intersects = raycaster.intersectObjects( scene.children, true );

					let graphMaterial = null;

					if ( intersects.length > 0 ) {

						for ( const intersect of intersects ) {

							const object = intersect.object;
							const material = object.material;

							if ( material.userData && material.userData.graphId ) {

								if ( boundingBox ) {

									removeBoundingBox();

								}

								boundingBox = new THREE.BoxHelper( object, 0xffff00 );
								scene.add( boundingBox );

								graphMaterial = material;

							}

							if ( object.isMesh || object.isSprite ) {

								break;

							}

						}

					}

					tslGraph.setMaterial( graphMaterial );

				} );

			}

			async function init() {

				renderer = new THREE.WebGPURenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.toneMapping = THREE.NeutralToneMapping;
				renderer.toneMappingExposure = .9;
				renderer.inspector = new Inspector();
				renderer.setAnimationLoop( render );
				document.body.appendChild( renderer.domElement );

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 200 );
				camera.position.set( 3, 5, 8 );

				scene = new THREE.Scene();
				scene.background = new THREE.Color( 0x444444 );

				await renderer.init();

				// Ground plane

				const plane = new THREE.Mesh( new THREE.CircleGeometry( 40 ), createGroudMaterial() );
				plane.rotation.x = - Math.PI / 2;
				plane.renderOrder = - 1;
				scene.add( plane );

				//

				controls = new OrbitControls( camera );
				controls.connect( renderer.domElement );
				controls.enableDamping = true;
				controls.minDistance = 2;
				controls.maxDistance = 40;

				//

				const environment = await new HDRLoader().setPath( 'textures/equirectangular/' ).loadAsync( 'monochrome_studio_02_1k.hdr' );
				environment.mapping = THREE.EquirectangularReflectionMapping;

				const light = new THREE.DirectionalLight( 0xffffff, 1 );
				light.position.set( 1, 1, 1 );
				scene.add( light );

				scene.environment = environment;

				prefab = ( await new GLTFLoader().loadAsync( './models/gltf/ShaderBall.glb' ) ).scene;

				await initTSLGraph();

				initGUI();

				// Events

				resize();

				window.addEventListener( 'resize', resize );
				renderer.inspector.addEventListener( 'resize', resize );

			}

			async function createShaderBall( material, position = new THREE.Vector3() ) {

				const model = prefab.clone();
				model.position.copy( position );
				scene.add( model );

				//

				const calibrationMesh = model.getObjectByName( 'Calibration_Mesh' );
				calibrationMesh.material = material;

				const previewMesh = model.getObjectByName( 'Preview_Mesh' );
				previewMesh.material = material;

				calibrationMesh.renderOrder = 1;
				previewMesh.renderOrder = 2;

			}

			function initGUI() {

				const gui = renderer.inspector.createParameters( 'Shader Ball' );

				const API = {
					showCalibrationMesh: true,
					showPreviewMesh: true
				};

				gui.add( API, 'showCalibrationMesh' )
					.name( 'Calibration Mesh' )
					.onChange( function ( value ) {

						setVisibility( 'Calibration_Mesh', value );

					} );

				gui.add( API, 'showPreviewMesh' )
					.name( 'Preview Mesh' )
					.onChange( function ( value ) {

						setVisibility( 'Preview_Mesh', value );

					} );

				renderer.inspector.hide();

			}

			function resize() {

				const size = renderer.inspector.getSize();
				const width = window.innerWidth - size.width;
				const height = window.innerHeight - size.height;

				camera.aspect = width / height;
				camera.updateProjectionMatrix();

				renderer.setSize( width, height );

			}

			function render() {

				if ( controls ) controls.update();

				renderer.render( scene, camera );

			}

			//

			function setVisibility( name, visible ) {

				scene.traverse( function ( node ) {

					if ( node.isMesh ) {

						if ( node.name == name ) node.visible = visible;

					}

				} );

			}

			function createGroudMaterial() {

				const material = new THREE.MeshBasicNodeMaterial();

				const grid = Fn( ( [ coord, lineWidth = float( 0.01 ), dotSize = float( 0.03 ) ] ) => {

					// https://bgolus.medium.com/the-best-darn-grid-shader-yet-727f9278b9d8

					const g = fract( coord );
					const fw = fwidth( coord );
					const gx = abs( g.x.sub( 0.5 ) );
					const gy = abs( g.y.sub( 0.5 ) );

					const lineX = saturate( lineWidth.sub( gx ).div( fw.x ).add( 0.5 ) );
					const lineY = saturate( lineWidth.sub( gy ).div( fw.y ).add( 0.5 ) );
					const lines = max( lineX, lineY );

					const squareDist = max( gx, gy );
					const aa = max( fw.x, fw.y );
					const dots = smoothstep( dotSize.add( aa ), dotSize.sub( aa ), squareDist );

					return max( dots, lines );

				} );

				const fade = Fn( ( [ radius = float( 10.0 ), falloff = float( 1.0 ) ] ) => {

					return smoothstep( radius, radius.sub( falloff ), length( positionWorld ) );

				} );

				const gridColor = vec4( vec3( 0.2 ), 1.0 );
				const baseColor = vec4( vec3( 0.4 ), 0.0 );

				material.colorNode = grid( positionWorld.xz, 0.007, 0.03 ).mix( baseColor, gridColor ).mul( fade( 30.0, 20.0 ) );
				material.transparent = true;

				return material;

			}

		</script>

	</body>
</html>