three#GridHelper JavaScript Examples

function init() {

	scene = new Scene();

	// primary camera view
	renderer = new WebGLRenderer( { antialias: true } );
	renderer.setPixelRatio( window.devicePixelRatio );
	renderer.setSize( window.innerWidth, window.innerHeight );
	renderer.setClearColor( 0xbbbbbb );
	renderer.outputEncoding = sRGBEncoding;
	renderer.xr.enabled = true;

	document.body.appendChild( renderer.domElement );
	renderer.domElement.tabIndex = 1;

	renderer.setAnimationLoop( animate );

	// create workspace
	workspace = new Group();
	scene.add( workspace );

	grid = new GridHelper( 10, 10, 0xffffff, 0xffffff );
	grid.material.transparent = true;
	grid.material.opacity = 0.5;
	grid.material.depthWrite = false;
	workspace.add( grid );

	camera = new PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 4000 );
	camera.position.set( 0, 1, 0 );
	workspace.add( camera );

	// lights
	const dirLight = new DirectionalLight( 0xffffff );
	dirLight.position.set( 1, 2, 3 );
	scene.add( dirLight );

	const ambLight = new AmbientLight( 0xffffff, 0.2 );
	scene.add( ambLight );

	// tile set
	box = new Box3();
	sphere = new Sphere();

	// parent for centering the tileset
	offsetParent = new Group();
	offsetParent.rotation.x = Math.PI / 2;
	offsetParent.position.y = 32;
	scene.add( offsetParent );

	tiles = new TilesRenderer( 'https://raw.githubusercontent.com/NASA-AMMOS/3DTilesSampleData/master/msl-dingo-gap/0528_0260184_to_s64o256_colorize/scene-tileset.json' );
	offsetParent.add( tiles.group );

	// We set camera for tileset
	tiles.setCamera( camera );
	tiles.setResolutionFromRenderer( camera, renderer );


	// We define a custom scheduling callback to handle also active WebXR sessions
	const tilesSchedulingCB = func => {

		tasks.push( func );

	};

	// We set our scheduling callback for tiles downloading and parsing
	tiles.downloadQueue.schedulingCallback = tilesSchedulingCB;
	tiles.parseQueue.schedulingCallback = tilesSchedulingCB;

	tiles.lruCache.maxSize = 1200;
	tiles.lruCache.minSize = 900;

	// Raycasting init
	raycaster = new Raycaster();
	fwdVector = new Vector3( 0, 0, 1 );

	const rayIntersectMat = new MeshBasicMaterial( { color: 0xb2dfdb } );
	intersectRing = new Mesh( new TorusBufferGeometry( 1.5, 0.2, 16, 100 ), rayIntersectMat );
	intersectRing.visible = false;
	scene.add( intersectRing );

	// vr setup
	document.body.appendChild( VRButton.createButton( renderer ) );

	controller = renderer.xr.getController( 0 );
	controller.addEventListener( 'selectstart', () => {

		if ( intersectRing.visible ) {

			workspace.position.copy( intersectRing.position );

		}

	} );
	controller.addEventListener( 'connected', function ( event ) {

		this.controllerActive = true;
		this.add( buildController( event.data ) );

	} );
	controller.addEventListener( 'disconnected', function () {

		this.controllerActive = false;
		this.remove( this.children[ 0 ] );

	} );
	workspace.add( controller );

	// controller models
	const controllerModelFactory = new XRControllerModelFactory();
	controllerGrip = renderer.xr.getControllerGrip( 0 );
	controllerGrip.add( controllerModelFactory.createControllerModel( controllerGrip ) );
	workspace.add( controllerGrip );

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

	// GUI
	const gui = new GUI();
	gui.width = 300;
	gui.add( params, 'displayGrid' );
	gui.add( params, 'displayBoxBounds' );
	gui.add( params, 'colorMode', {

		NONE,
		SCREEN_ERROR,
		GEOMETRIC_ERROR,
		DISTANCE,
		DEPTH,
		RELATIVE_DEPTH,
		IS_LEAF,
		RANDOM_COLOR,

	} );
	gui.open();

}