javascript
/
three.js
cermin dari https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js - software renderer</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="info">
			<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - software renderer<br />
			drag to change the point of view
		</div>

		<script type="module">
			import {
				BoxBufferGeometry,
				BufferGeometry,
				CatmullRomCurve3,
				Color,
				Float32BufferAttribute,
				Line,
				LineBasicMaterial,
				Mesh,
				MeshBasicMaterial,
				MeshLambertMaterial,
				PerspectiveCamera,
				Scene,
				Sprite,
				SpriteMaterial,
				TextureLoader,
				TorusKnotBufferGeometry,
				Vector3,
				VertexColors
			} from "../build/three.module.js";

			import Stats from './jsm/libs/stats.module.js';

			import { TrackballControls } from './jsm/controls/TrackballControls.js';
			import { SoftwareRenderer } from './jsm/renderers/SoftwareRenderer.js';
			import { GeometryUtils } from './jsm/utils/GeometryUtils.js';

			var camera, controls, scene, renderer, stats;

			var torus, cube, texCube;

			var start = Date.now();

			init();
			animate();

			function init() {

				var container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 2000 );
				camera.position.z = 600;

				scene = new Scene();

				// Torus
				var torusGeometry = new TorusKnotBufferGeometry( 150, 10 );
				torusGeometry = torusGeometry.toNonIndexed();

				var colors = [];
				var color = new Color();

				for ( var i = 0; i < torusGeometry.attributes.position.count; i ++ ) {

					color.setHex( Math.random() * 0xffffff );
					colors.push( color.r, color.g, color.b );

				}

				torusGeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

				torus = new Mesh( torusGeometry, new MeshBasicMaterial( { color: 0x0000ff, vertexColors: VertexColors } ) );
				scene.add( torus );

				// Cube
				var boxGeometry = new BoxBufferGeometry( 200, 200, 200 );
				boxGeometry = boxGeometry.toNonIndexed();

				colors = [];

				for ( var i = 0; i < boxGeometry.attributes.position.count; i ++ ) {

					color.setHex( Math.random() * 0xffffff );
					colors.push( color.r, color.g, color.b );

				}

				boxGeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

				cube = new Mesh( boxGeometry, new MeshBasicMaterial( { color: 0x00ff00, vertexColors: VertexColors } ) );
				scene.position.set( 100, 0, 0 );
				scene.add( cube );

				// Cube with texture
				var loader = new TextureLoader();
				var map = loader.load( 'textures/brick_diffuse.jpg' );
				texCube = new Mesh( boxGeometry, new MeshLambertMaterial( { map: map } ) );
				texCube.position.set( - 300, 0, 0 );
				scene.add( texCube );

				// Sprite
				var sprite = new Sprite( new SpriteMaterial( { color: 0xff0040 } ) );
				sprite.scale.set( 100, 100, 1 );
				sprite.position.set( - 100, 200, 0 );
				scene.add( sprite );

				// Sprite with texture
				var texLoader = new TextureLoader();
				map = texLoader.load( 'textures/sprite1.png' );
				var texSprite = new Sprite( new SpriteMaterial( { map: map, transparent: true } ) );
				texSprite.scale.set( 100, 100, 1 );
				texSprite.position.set( 100, 200, 0 );
				scene.add( texSprite );

				// Line
				var hilbertPoints = GeometryUtils.hilbert3D( new Vector3( 0, 0, 0 ), 200.0, 1, 0, 1, 2, 3, 4, 5, 6, 7 );

				var lineGeometry = new BufferGeometry();
				var subdivisions = 6;

				var vertices = [];
				colors = [];

				var point = new Vector3();
				color.setHex( 0x88aaff );

				var spline = new CatmullRomCurve3( hilbertPoints );

				for ( var i = 0; i < hilbertPoints.length * subdivisions; i ++ ) {

					var t = i / ( hilbertPoints.length * subdivisions );
					spline.getPoint( t, point );

					vertices.push( point.x, point.y, point.z );
					colors.push( color.r, color.g, color.b );

				}

				lineGeometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
				lineGeometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

				var material = new LineBasicMaterial( { opacity: 1, linewidth: 3, vertexColors: VertexColors } );
				var line = new Line( lineGeometry, material );
				line.scale.set( 0.5, 0.5, 0.5 );
				line.position.set( 0, - 200, 0 );
				scene.add( line );

				//

				renderer = new SoftwareRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				controls = new TrackballControls( camera, renderer.domElement );

				stats = new Stats();
				container.appendChild( stats.dom );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

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

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

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			function render() {

				var timer = Date.now() - start;

				torus.position.y = Math.sin( timer * 0.002 ) * 150;
				torus.rotation.x = timer * 0.0003;
				torus.rotation.z = timer * 0.0002;

				cube.rotation.x = timer * 0.0002;
				cube.rotation.z = timer * 0.0003;

				texCube.rotation.x = timer * 0.0002;
				texCube.rotation.z = timer * 0.0003;

				controls.update();

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>