Записи

 <div align="center" id="info"></div>

 <script src="https://sklees.narod.ru/webGL/three.js"></script>

 <script src="https://sklees.narod.ru/webGL/STLLoader.js"></script>

 <script src="https://sklees.narod.ru/webGL/WebGL.js"></script>
 <script src="https://sklees.narod.ru/webGL/stats.min.js"></script>

 <script>
 if ( WEBGL.isWebGLAvailable() === false ) {
 document.getElementById('info').appendChild( WEBGL.getWebGLErrorMessage() );
 }
 var container, stats;
 var camera, cameraTarget, scene, renderer;
 init();
 animate();
 function init() {
 container = document.createElement( 'div' );
 document.getElementById('info').appendChild( container );
 camera = new THREE.PerspectiveCamera( 35, 1, 1, 15 );
 camera.position.set( 3, 0.15, 3 );
 cameraTarget = new THREE.Vector3( 0, -0.25, 0 );
 scene = new THREE.Scene();
 scene.background = new THREE.Color( 0x72645b );
 scene.fog = new THREE.Fog( 0x72645b, 2, 15 );

 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;

 var loader = new THREE.STLLoader();
 loader.load( urlfileSTL, 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, 0.05, 0.0 );
 mesh.rotation.set( 0, Math.PI, 0 );
 mesh.scale.set( 0.005, 0.005, 0.005 );
 mesh.castShadow = true;
 mesh.receiveShadow = true;
 scene.add( mesh );
 } );
 

 scene.add( new THREE.HemisphereLight( 0x443333, 0x111122 ) );
 addShadowedLight( 1, 1, 1, 0xffffff, 1.35 );
 addShadowedLight( 0.5, 1, -1, 0xffaa00, 1 );

 renderer = new THREE.WebGLRenderer( { antialias: true } );
 renderer.setPixelRatio( 1 );
 renderer.setSize( 320, 320 );
 renderer.gammaInput = true;
 renderer.gammaOutput = true;
 renderer.shadowMap.enabled = true;
 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 = -0.002;
 }
 function onWindowResize() {
 camera.aspect = 1;
 camera.updateProjectionMatrix();
 renderer.setSize( 320, 320 );
 }
 function animate() {
 requestAnimationFrame( animate );
 render();
 }
 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>