javascript
/
three.js
spogulis no https://github.com/tazdij/three.js.git


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - materials - texture - rotation</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				margin: 0px;
				background-color: #050505;
				color: #fff;
				overflow: hidden;
			}

			a { color: #e00 }

			#info {
				position: absolute;
				top: 0px; width: 100%;
				color: #ffffff;
				padding: 5px;
				font-family: Monospace;
				font-size: 13px;
				text-align: center;
			}

		</style>
	</head>

	<body>

		<div id="info">
			<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl - texture rotation
		</div>

		<script src="../build/three.js"></script>

		<script src="js/controls/OrbitControls.js"></script>

		<script src="js/libs/dat.gui.min.js"></script>

		<script src="js/Detector.js"></script>

		<script>

			if ( ! Detector.webgl ) Detector.addGetWebGLMessage();

			var mesh, renderer, scene, camera;

			var gui;

			var API = {
				translateX: 0,
				translateY: 0,
				scaleX: 0.25,
				scaleY: 0.25,
				rotation: Math.PI / 4, // positive is counter-clockwise
				centerX: 0.5,
				centerY: 0.5
			};

			init();
			render();


			function init() {

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				scene = new THREE.Scene();

				camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.set( 10, 15, 25 );
				scene.add( camera );

				var controls = new THREE.OrbitControls( camera, renderer.domElement );
				controls.addEventListener( 'change', render );
				controls.minDistance = 20;
				controls.maxDistance = 50;
				controls.maxPolarAngle = Math.PI / 2;

				var geometry = new THREE.BoxGeometry( 10, 10, 10 );

				var loader = new THREE.TextureLoader();
				var texture = loader.load( 'textures/UV_Grid_Sm.jpg', render );
				texture.wrapS = texture.wrapT = THREE.RepeatWrapping;

				var material = new THREE.MeshBasicMaterial( { map: texture } );

				mesh = new THREE.Mesh( geometry, material );
				scene.add( mesh );

				updateTextureParams();

				initGui();

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

			}

			function render() {

				renderer.render( scene, camera );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;

				camera.updateProjectionMatrix();

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

				render();

			}

			function updateTextureParams() {

				var map = mesh.material.map;

				map.offset.x = API.translateX;
				map.offset.y = API.translateY;
				map.repeat.x = API.scaleX;
				map.repeat.y = API.scaleY;
				map.rotation = API.rotation;
				map.center.x = API.centerX;
				map.center.y = API.centerY;

				render();

			}

			function initGui() {

				var drop;

				gui = new dat.GUI();

				gui.add( API, 'translateX', 0.0, 1.0 ).name( 'offset.x' ).onChange( updateTextureParams );
				gui.add( API, 'translateY', 0.0, 1.0 ).name( 'offset.y' ).onChange( updateTextureParams );
				gui.add( API, 'scaleX', 0.25, 2.0 ).name( 'repeat.x' ).onChange( updateTextureParams );
				gui.add( API, 'scaleY', 0.25, 2.0 ).name( 'repeat.y' ).onChange( updateTextureParams );
				gui.add( API, 'rotation', - 2.0, 2.0 ).name( 'rotation' ).onChange( updateTextureParams );
				gui.add( API, 'centerX', 0.0, 1.0 ).name( 'center.x' ).onChange( updateTextureParams );
				gui.add( API, 'centerY', 0.0, 1.0 ).name( 'center.y' ).onChange( updateTextureParams );

			}

		</script>

	</body>

</html>