javascript
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three.js
Mirror von https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js PMREM directional light test</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 id="info">
				<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> -
				PMREM directional light test <a href="https://github.com/elalish" target="_blank" rel="noopener">Emmett Lalish</a>
			</div>
		</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

            import { OrbitControls } from './jsm/controls/OrbitControls.js';
            import { RGBELoader } from './jsm/loaders/RGBELoader.js';
			import { PMREMGenerator } from './jsm/pmrem/PMREMGenerator.js';

            var scene, camera, controls, renderer;
            
			function init() {

				var width = window.innerWidth;
				var height = window.innerHeight;
				var aspect = width / height;

				// renderer

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setSize( width, height );
                renderer.setPixelRatio( window.devicePixelRatio );
                renderer.gammaOutput = true;
				document.body.appendChild( renderer.domElement );

                window.addEventListener( 'resize', onResize, false );
                
				// scene

				scene = new THREE.Scene();

				// camera

				camera = new THREE.PerspectiveCamera( 40, aspect, 1, 30 );
                camera.position.set( 0, 0, 18 );

                // controls
                
                controls = new OrbitControls( camera, renderer.domElement );
                controls.update();

                // light
                
                var directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );
                var x = 597;
                var y = 213;
                var theta = (x + 0.5) * Math.PI / 512;
                var phi = (y + 0.5) * Math.PI / 512;
                directionalLight.position.set(
                    -Math.sin(phi) * Math.cos(theta),
                    Math.cos(phi),
                    -Math.sin(phi) * Math.sin(theta));
                scene.add( directionalLight );

				document.body.addEventListener( 'mouseover', function () {

					scene.traverse( function ( child ) {

						if ( child.isMesh ) {

                            child.material.envMapIntensity = 1;
                            directionalLight.intensity = 0;
                        
                        }

					} );

				} );

				document.body.addEventListener( 'mouseout', function () {

					scene.traverse( function ( child ) {

						if ( child.isMesh ) {

                            child.material.envMapIntensity = 0;
                            directionalLight.intensity = 1;

                        }

					} );

                } );

			}

			function createObjects() {

                var radianceMap = null;
                new RGBELoader()
                    .setDataType( THREE.UnsignedByteType )
                    .setPath( 'textures/equirectangular/' )
                    .load( 'pedestrian_overpass_1k.hdr', function ( texture ) {

                        var pmremGenerator = new PMREMGenerator( renderer );
                        radianceMap = pmremGenerator.fromEquirectangular( texture ).texture;
                        pmremGenerator.dispose();

                        scene.background = radianceMap;

                        var geometry = new THREE.SphereBufferGeometry( 0.4, 32, 32 );

                        for ( var x = 0; x <= 10; x ++ ) {

                            for ( var y = 0; y <= 2; y ++ ) {

                                var material = new THREE.MeshPhysicalMaterial( {
                                    roughness: x / 10,
                                    metalness: y < 1 ? 1 : 0,
                                    color: y < 2 ? 0xffffff : 0x000000,
                                    envMap: radianceMap,
                                    envMapIntensity: 1
                                } );

                                var mesh = new THREE.Mesh( geometry, material );
                                mesh.position.x = x - 5;
                                mesh.position.y = 1 - y;
                                scene.add( mesh );

                            }

                        }

                } );

			}

			function onResize() {

				var width = window.innerWidth;
				var height = window.innerHeight;

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

				renderer.setSize( width, height );

			}

			function animate() {

				renderer.setAnimationLoop( render );

			}

			function render() {

				renderer.render( scene, camera );

            }
            
			Promise.resolve()
				.then( init )
				.then( createObjects )
				.then( animate );

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