three.js 08-04のロードと保存シーン

    
	
	
	
	
	
    











	var scene;
	var camera;
	var render;
	var webglRender;
	//var canvasRender;
	var controls;
	var stats;
	var guiParams;
	
	var ambientLight;
	var spotLight;
	var axesHelper;
	//var cameraHelper;
	
	var ground;
	
    $(function() {
		initStats();
		initRender();
		initCamera();
		initControls();
		
		scene = new THREE.Scene();
		
		createAxesHelper();
		createAmbientLight();
		createSpotLight();
		createGuiControls();
		
		//     
		createGround()
		//     
		createMesh();
		
		renderScene();
    });
	
	/**     stats      */
	function initStats() {
		stats = new Stats();
		stats.setMode(0); // 0     FPS；1        
		$('#stats-output').append(stats.domElement);
		return stats;
	}
	
	/**        */
	function initRender() {
		webglRender = new THREE.WebGLRenderer( {antialias: true, alpha: true} ); // antialias    
		webglRender.setSize(window.innerWidth, window.innerHeight);
		webglRender.setClearColor(0x0F0F0F, 1.0); // 0xeeeeee
		render = webglRender;
		render.shadowMap.enabled = true; //       
		
		$('#webgl-output')[0].appendChild(render.domElement);
		window.addEventListener('resize', onWindowResize, false);
	}
	
	/**       */
	function initCamera() {
		camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 2147483647); // 2147483647
		camera.position.set(30, 40, 50);
	}
	
	/**          */
	function initControls() {
		var target = new THREE.Vector3(0, 0 , 0);
		controls = new THREE.OrbitControls(camera, render.domElement);
		controls.target = target;
		camera.lookAt(target);
	}
	
	/**               */
	function onWindowResize() {
		camera.aspect = window.innerWidth / window.innerHeight;
		camera.updateProjectionMatrix();
		render.setSize(window.innerWidth, window.innerHeight);
	}
	
	/**      */
	function renderScene() {
		stats.update();
		rotateMesh(); //     
		
		requestAnimationFrame(renderScene);
		render.render(scene, camera);
	}
	
	/**      */
	var step = 0;
	function rotateMesh() {
		step += guiParams.rotationSpeed;
		scene.traverse(function(mesh) {
			if (mesh instanceof THREE.Mesh && mesh.name != 'ground') {
				//mesh.rotation.x = step;
				mesh.rotation.y = step;
				//mesh.rotation.z = step;
			}
		});
	}
	
	/**        ：X（  ）、Y（  ）、Z（  ） */
	function createAxesHelper() {
		axesHelper = new THREE.AxesHelper(60);
		scene.add(axesHelper);
	}
	
	/**      AmbientLight      */
	function createAmbientLight() {
		ambientLight = new THREE.AmbientLight(0x0c0c0c);
		scene.add(ambientLight);
	}
	
	/**      AmbientLight      */
	function createSpotLight() {
		spotLight = new THREE.SpotLight(0xffffff);
        spotLight.position.set(-60, 60, -10);
        spotLight.castShadow = true;
		spotLight.shadow.mapSize.set(2048, 2048); //     2  ，     512
        scene.add(spotLight);
		//cameraHelper = new THREE.CameraHelper(spotLight.shadow.camera);
		//scene.add(cameraHelper);
	}
	
	/**               */
	function createGuiControls() {
		guiParams = new function() {
			this.rotationSpeed = 0.02;
			
			this.ExportScene = function() {
				if (scene) {
					var geoJSON = scene.toJSON();
					console.log(geoJSON);
					localStorage.setItem('geoJSON', JSON.stringify(geoJSON));
				}
			};
			this.ClearScene = function() {
				scene = new THREE.Scene();
			};
			this.LoadScene = function() {
				var geoJSON = localStorage.getItem('geoJSON');
				if (geoJSON) {
					var parsedGeom = JSON.parse(geoJSON);
					var loader = new THREE.ObjectLoader();
					var loaddedScene = loader.parse(parsedGeom);
					scene = loaddedScene;
				}
			};
		}
		/**    dat.GUI   ，    guiParams       */
		var gui = new dat.GUI();
		gui.add(guiParams, 'ExportScene');
		gui.add(guiParams, 'ClearScene');
		gui.add(guiParams, 'LoadScene');
	}
	
	/**      */
	function createGround() {
		var groundGeom = new THREE.PlaneGeometry(60, 30);
		var groundMaterial = new THREE.MeshPhongMaterial( { color: 0xbcbcbc, side: THREE.DoubleSide} ); // 0x777777
		ground = new THREE.Mesh(groundGeom, groundMaterial);
		ground.name = 'ground';
		ground.receiveShadow = true; //       
		ground.rotation.x = -0.5 * Math.PI;
		scene.add(ground);
	}
	
	/**      */
	function createMesh() {
        //     
        var cubeGeometry = new THREE.BoxGeometry(4, 4, 4);
        var cubeMaterial = new THREE.MeshLambertMaterial({color: 0xff0000});
        var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
        // cube.castShadow = true;
        cube.position.x = -10;
        cube.position.y = 3;
        cube.position.z = 0;
        scene.add(cube);
		
		//     
        var sphereGeometry = new THREE.SphereGeometry(4, 20, 20);
        var sphereMaterial = new THREE.MeshLambertMaterial({color: 0x7777ff});
        var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
        // sphere.castShadow = true;
        sphere.position.x = 10;
        sphere.position.y = 0;
        sphere.position.z = 2;
        scene.add(sphere);
	}