STL-загрузчик, поддерживающий вращение

Question

Я использую three.min.js и прекрасно работает, но модель вращается бесконечно. Как остановить его и позволить пользователю вращаться вручную? И вращение тоже сосредоточено, есть ли разрешение на это?

<script> 
      if (!Detector.webgl) Detector.addGetWebGLMessage(); 
      var container, stats; 
      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, 0.15, 3); 
       cameraTarget = new THREE.Vector3(0, -0.25, 0); 
       scene = new THREE.Scene(); 
       scene.fog = new THREE.Fog(0x72645b, 2, 15); 
       // 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; 

       var loader = new THREE.STLLoader(); 

       // Binary files 
       var material = new THREE.MeshPhongMaterial({ color: 0xAAAAAA, specular: 0x111111, shininess: 200 }); 
       loader.load('/productimages/mannequin.stl', function (geometry) { 
        var mesh = new THREE.Mesh(geometry, material); 
        mesh.position.set(0, -0.37, -0.6); 
        mesh.rotation.set(-Math.PI/2, 0, 0); 
        mesh.scale.set(0.2, 0.2, 0.2); 
        mesh.castShadow = true; 
        mesh.receiveShadow = true; 
        scene.add(mesh); 
       }); 

       // Lights 
       scene.add(new THREE.AmbientLight(0x777777)); 
       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.shadowMapEnabled = true; 
       renderer.shadowMapCullFace = THREE.CullFaceBack; 
       container.appendChild(renderer.domElement); 
       // stats 
       stats = new Stats(); 
       stats.domElement.style.position = 'absolute'; 
       stats.domElement.style.top = '0px'; 
       container.appendChild(stats.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; 
       // directionalLight.shadowCameraVisible = true; 
       var d = 1; 
       directionalLight.shadowCameraLeft = -d; 
       directionalLight.shadowCameraRight = d; 
       directionalLight.shadowCameraTop = d; 
       directionalLight.shadowCameraBottom = -d; 
       directionalLight.shadowCameraNear = 1; 
       directionalLight.shadowCameraFar = 4; 
       directionalLight.shadowMapWidth = 1024; 
       directionalLight.shadowMapHeight = 1024; 
       directionalLight.shadowBias = -0.005; 
       directionalLight.shadowDarkness = 0.15; 
      } 
      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() * 0.0005; 
       camera.position.x = Math.cos(timer) * 3; 
       camera.position.z = Math.sin(timer) * 3; 
       camera.lookAt(cameraTarget); 
       renderer.render(scene, camera); 
      } 
     </script> 

Answer 1

, чтобы остановить его от прядения просто удалить:

var timer = Date.now() * 0.0005; 
camera.position.x = Math.cos(timer) * 3; 
camera.position.z = Math.sin(timer) * 3; 

из функции визуализации или сделать функцию, чтобы включить эту часть на мыши.