stlviewer.html

<!DOCTYPE html>
<html lang="en"><head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
		<title>ScubaTools Object Viewer</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 {
				font-family: Monospace;
				background-color: #000000;
				margin: 0px;
				overflow: hidden;
			}

			#info {
				color: #fff;
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				z-index: 100;
				display:block;

			}

			a { color: skyblue }
			.button { background:#999; color:#eee; padding:0.2em 0.5em; cursor:pointer }
			.highlight { background:orange; color:#fff; }

			span {
				display: inline-block;
				width: 60px;
				float: left;
				text-align: center;
			}

		</style>
    </head>
	<body>
		<div id="info">
            <a href="https://neo-soft.org" target="_blank">NeoSoft</a> ScubaTools -  
			<a href="https://threejs.org/" target="_blank">three.js</a> -
			STL loader by <a href="https://github.com/aleeper" target="_blank">aleeper</a>.
            <br/>
            Left mouse: rotate camera, right mouse: move camera, middle mouse or wheel: zoom
		</div>

		<script src="https://threejs.org/build/three.js"></script>
		<script src="https://threejs.org/examples/js/loaders/STLLoader.js"></script>
        <script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>
		<script>
			var container;
			var camera, cameraTarget, scene, renderer;

			init();
			animate();

			function init() {
				container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 1, 15 );
				camera.position.set( 3, 0.35, 3 );

				cameraTarget = new THREE.Vector3( 0, -0.25, 0 );

				scene = new THREE.Scene();
				scene.fog = new THREE.Fog( 0x72645b, 2, 15 );

                var controls = new THREE.OrbitControls(camera);

				// Ground

				var plane = new THREE.Mesh(
					new THREE.PlaneBufferGeometry( 40, 40 ),
					new THREE.MeshPhongMaterial( { color: 0x999999, specular: 0x101010 } )
				);
				plane.rotation.x = -Math.PI/2;
				plane.position.y = -0.5;
				scene.add( plane );

				plane.receiveShadow = true;

				// ASCII file

				var loader = new THREE.STLLoader();
				loader.load( './test.stl', function ( geometry ) {

					var material = new THREE.MeshPhongMaterial( { color: 0xff5533, specular: 0x111111, shininess: 200 } );
					var mesh = new THREE.Mesh( geometry, material );

					mesh.position.set( 0, -0.25, 0 );
					mesh.rotation.set( 0, Math.PI / 2, 0 );
					mesh.scale.set( 0.01, 0.01, 0.01 );

					mesh.castShadow = true;
					//mesh.receiveShadow = true;

					scene.add( mesh );

				} );

				// Lights

				scene.add( new THREE.HemisphereLight( 0x443333, 0x111122 ) );

				addShadowedLight( 1, 1, 1, 0xffffff, 1.35 );
				//addShadowedLight( 0.5, 1, -1, 0xffaa00, 1 );
				// renderer

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setClearColor( scene.fog.color );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );

				renderer.gammaInput = true;
				renderer.gammaOutput = true;

				renderer.shadowMap.enabled = true;
				renderer.shadowMap.renderReverseSided = false;

				container.appendChild( renderer.domElement );

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

			}

			function addShadowedLight( x, y, z, color, intensity ) {

				var directionalLight = new THREE.DirectionalLight( color, intensity );
				directionalLight.position.set( x, y, z );
				scene.add( directionalLight );

				directionalLight.castShadow = true;

				var d = 1;
				directionalLight.shadow.camera.left = -d;
				directionalLight.shadow.camera.right = d;
				directionalLight.shadow.camera.top = d;
				directionalLight.shadow.camera.bottom = -d;

				directionalLight.shadow.camera.near = 1;
				directionalLight.shadow.camera.far = 4;

				directionalLight.shadow.mapSize.width = 1024;
				directionalLight.shadow.mapSize.height = 1024;

				directionalLight.shadow.bias = -0.005;

			}

			function onWindowResize() {

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

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

			}

			function animate() {

				requestAnimationFrame( animate );

				//render();
                renderer.render( scene, camera );
				//stats.update();

			}

			function render() {
				var timer = Date.now() * 0.0005;
				camera.position.x = Math.cos( timer ) * 3;
				camera.position.z = Math.sin( timer ) * 3;
				camera.lookAt( cameraTarget );
				renderer.render( scene, camera );
			}

		</script><div><canvas style="width: 1589px; height: 711px;" height="711" width="1589"></canvas><div style="position: fixed; top: 0px; left: 0px; cursor: pointer; opacity: 0.9; z-index: 10000;"><canvas style="width: 80px; height: 48px; display: block;" height="48" width="80"></canvas><canvas style="width: 80px; height: 48px; display: none;" height="48" width="80"></canvas></div></div>
	

</body></html>