samien
/
three.js
зеркало из https://github.com/mrdoob/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgpu - backdrop water</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<meta property="og:title" content="three.js webgpu - backdrop water">
		<meta property="og:type" content="website">
		<meta property="og:url" content="https://threejs.org/examples/webgpu_backdrop_water.html">
		<meta property="og:image" content="https://threejs.org/examples/screenshots/webgpu_backdrop_water.jpg">
		<link type="text/css" rel="stylesheet" href="example.css">
	</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>Backdrop Water</span>
			</div>

			<small>Water refraction with depth effect.</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 { color, vec2, pass, linearDepth, normalWorld, triplanarTexture, texture, objectPosition, screenUV, viewportLinearDepth, viewportDepthTexture, viewportSharedTexture, positionWorld, time } from 'three/tsl';
			import { gaussianBlur } from 'three/addons/tsl/display/GaussianBlurNode.js';
			import { voronoi2d, voronoi3d } from 'three/addons/tsl/math/voronoiNoise.js';

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

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

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

			let camera, scene, renderer;
			let mixer, objects, timer;
			let model, floor, floorPosition;
			let renderPipeline;
			let controls;

			init();

			function init() {

				camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.25, 30 );
				camera.position.set( 3, 2, 4 );

				scene = new THREE.Scene();
				scene.fog = new THREE.Fog( 0x0487e2, 7, 25 );
				scene.backgroundNode = normalWorld.y.mix( color( 0x0487e2 ), color( 0x0066ff ) );
				camera.lookAt( 0, 1, 0 );

				const sunLight = new THREE.DirectionalLight( 0xFFE499, 5 );
				sunLight.position.set( .5, 3, .5 );
				sunLight.castShadow = true;
				sunLight.shadow.mapSize.width = 512;
				sunLight.shadow.mapSize.height = 512;
				sunLight.shadow.camera.near = 0.5;
				sunLight.shadow.camera.far = 15;
				sunLight.shadow.camera.left = - 1.5;
				sunLight.shadow.camera.right = 1.5;
				sunLight.shadow.camera.top = 1.5;
				sunLight.shadow.camera.bottom = - 1.5;
				sunLight.shadow.bias = - 0.001;

				const waterAmbientLight = new THREE.HemisphereLight( 0x333366, 0x74ccf4, 5 );
				const skyAmbientLight = new THREE.HemisphereLight( 0x74ccf4, 0, 1 );

				scene.add( sunLight );
				scene.add( skyAmbientLight );
				scene.add( waterAmbientLight );

				timer = new THREE.Timer();
				timer.connect( document );

				// animated model

				const loader = new GLTFLoader();
				loader.load( 'models/gltf/Michelle.glb', function ( gltf ) {

					model = gltf.scene;
					model.traverse( ( child ) => {

						if ( child.isMesh ) {

							child.castShadow = true;
							child.receiveShadow = true;

						}

					} );

					mixer = new THREE.AnimationMixer( model );

					const action = mixer.clipAction( gltf.animations[ 0 ] );
					action.play();

					scene.add( model );

				} );

				// objects

				const textureLoader = new THREE.TextureLoader();
				const iceDiffuse = textureLoader.load( './textures/water.jpg' );
				iceDiffuse.wrapS = THREE.RepeatWrapping;
				iceDiffuse.wrapT = THREE.RepeatWrapping;
				iceDiffuse.colorSpace = THREE.NoColorSpace;

				const iceColorNode = triplanarTexture( texture( iceDiffuse ) ).add( color( 0x0066ff ) ).mul( .8 );

				const geometry = new THREE.IcosahedronGeometry( 1, 3 );
				const material = new THREE.MeshStandardNodeMaterial( { colorNode: iceColorNode } );

				const count = 100;
				const scale = 3.5;
				const column = 10;

				objects = new THREE.Group();

				for ( let i = 0; i < count; i ++ ) {

					const x = i % column;
					const y = i / column;

					const mesh = new THREE.Mesh( geometry, material );
					mesh.position.set( x * scale, 0, y * scale );
					mesh.rotation.set( Math.random(), Math.random(), Math.random() );
					objects.add( mesh );

				}

				objects.position.set(
					( ( column - 1 ) * scale ) * - .5,
					- 1,
					( ( count / column ) * scale ) * - .5
				);

				scene.add( objects );

				// water

				const t = time.mul( .8 );
				const floorUV = positionWorld.xz;

				const waterLayer0 = voronoi2d( floorUV.mul( 6 ), t );
				const waterLayer1 = voronoi2d( floorUV.mul( 3 ), t );

				const waterIntensity = waterLayer0.mul( waterLayer1 );
				const waterColor = waterIntensity.mul( 1.4 ).mix( color( 0x0487e2 ), color( 0x74ccf4 ) );

				// linearDepth() returns the linear depth of the mesh
				const depth = linearDepth();
				const depthWater = viewportLinearDepth.sub( depth ).toInspector( 'Water / Depth', ( node ) => node.oneMinus() );
				const depthEffect = depthWater.remapClamp( - .002, .04 );

				const refractionUV = screenUV.add( vec2( 0, waterIntensity.mul( .1 ) ) ).toInspector( 'Water / Refraction UV' );

				// linearDepth( viewportDepthTexture( uv ) ) return the linear depth of the scene
				const depthTestForRefraction = linearDepth( viewportDepthTexture( refractionUV ) ).sub( depth );

				const depthRefraction = depthTestForRefraction.remapClamp( 0, .1 );

				const finalUV = depthTestForRefraction.lessThan( 0 ).select( screenUV, refractionUV );

				const viewportTexture = viewportSharedTexture( finalUV ).toInspector( 'Water / Viewport Texture + Refraction UV' );

				const waterMaterial = new THREE.MeshBasicNodeMaterial();
				waterMaterial.colorNode = waterColor.toInspector( 'Water / Color' );
				waterMaterial.backdropNode = depthEffect.mix( viewportSharedTexture(), viewportTexture.mul( depthRefraction.mix( 1, waterColor ) ) ).mul( color( 0xd3ebf8 ) );
				waterMaterial.backdropAlphaNode = depthRefraction.oneMinus();
				waterMaterial.transparent = true;

				const water = new THREE.Mesh( new THREE.BoxGeometry( 50, .001, 50 ), waterMaterial );
				water.position.set( 0, 0, 0 );
				scene.add( water );

				// floor

				floor = new THREE.Mesh( new THREE.CylinderGeometry( 1.1, 1.1, 10 ), new THREE.MeshStandardNodeMaterial( { colorNode: iceColorNode } ) );
				floor.position.set( 0, - 5, 0 );
				floor.receiveShadow = true;
				scene.add( floor );

				// caustics

				const causticFade = normalWorld.y.mix( positionWorld.y.distance( 0 ).oneMinus().saturate(), 0 );

				const causticNoise = voronoi3d( positionWorld.mul( 6 ), t );

				//material.colorNode = colorNode;
				floor.material.colorNode = causticFade.mix( material.colorNode, material.colorNode.add( causticNoise ) );

				// renderer

				renderer = new THREE.WebGPURenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( animate );
				renderer.shadowMap.enabled = true;
				renderer.inspector = new Inspector();
				document.body.appendChild( renderer.domElement );

				controls = new OrbitControls( camera, renderer.domElement );
				controls.minDistance = 1;
				controls.maxDistance = 10;
				controls.maxPolarAngle = Math.PI * 0.9;
				controls.autoRotate = true;
				controls.autoRotateSpeed = 1;
				controls.target.set( 0, .2, 0 );
				controls.update();

				// gui

				const gui = renderer.inspector.createParameters( 'Settings' );

				floorPosition = new THREE.Vector3( 0, .2, 0 );

				gui.add( floorPosition, 'y', - 1, 1, .001 ).name( 'floor position' );

				// post processing

				const scenePass = pass( scene, camera );
				const scenePassColor = scenePass.getTextureNode();
				const scenePassDepth = scenePass.getLinearDepthNode().remapClamp( .3, .5 );

				const waterMask = objectPosition( camera ).y.greaterThan( screenUV.y.sub( .5 ).mul( camera.near ) ).toInspector( 'Post-Processing / Water Mask' );

				const scenePassColorBlurred = gaussianBlur( scenePassColor );
				scenePassColorBlurred.directionNode = waterMask.select( scenePassDepth, scenePass.getLinearDepthNode().mul( 5 ) ).toInspector( 'Post-Processing / Blur Strength [ Depth ]', ( node ) => node.toFloat() );

				const vignette = screenUV.distance( .5 ).mul( 1.35 ).clamp().oneMinus().toInspector( 'Post-Processing / Vignette' );

				renderPipeline = new THREE.RenderPipeline( renderer );
				renderPipeline.outputNode = waterMask.select( scenePassColorBlurred, scenePassColorBlurred.mul( color( 0x74ccf4 ) ).mul( vignette ) );

				//

				window.addEventListener( 'resize', onWindowResize );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				timer.update();

				controls.update();

				const delta = timer.getDelta();

				floor.position.y = floorPosition.y - 5;

				if ( model ) {

					mixer.update( delta );

					model.position.y = floorPosition.y;

				}

				for ( const object of objects.children ) {

					object.position.y = Math.sin( timer.getElapsed() + object.id ) * .3;
					object.rotation.y += delta * .3;

				}

				renderPipeline.render();

			}

		</script>
	</body>
</html>