123 lines
3.5 KiB
JavaScript
123 lines
3.5 KiB
JavaScript
if ( WEBGL.isWebGLAvailable() === false ) {
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document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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}
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var container, stats, controls;
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var camera, scene, renderer, light, bbox;
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var rotating = true;
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init();
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animate();
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pauseRotation();
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function init() {
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console.log('init')
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if (!modelUrl) {
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return false;
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}
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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scene = new THREE.Scene();
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bbox = new THREE.Box3();
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// scene.background = new THREE.Color( 0xeeeeee );//白色
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// scene.background = new THREE.Color();//黑色
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light = new THREE.HemisphereLight( 0xbbbbff, 0x444422, 2 );
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light.position.set( 0, 1, 0 );
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scene.add( light );
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scene.rotation.y += -3.15;
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scene.rotation.x += 1.5;
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scene.rotation.z += 1;
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var loader = new THREE.GLTFLoader();
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loader.load(modelUrl, function ( gltf ) {
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gltf.scene.name = '3dmodel';
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setContent(gltf.scene);
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scene.add( gltf.scene );
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}, undefined, function ( e ) {
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console.error( e );
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} );
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.gammaOutput = true;
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container.appendChild( renderer.domElement );
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window.addEventListener( 'resize', onWindowResize, false );
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camera = new THREE.PerspectiveCamera(20,window.innerWidth / window.innerHeight,0.01,1000);
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controls = new THREE.OrbitControls(camera);
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// to disable pan
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controls.enablePan = false;
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// to disable zoom
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//controls.enableZoom = false;
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controls.enableZoom = true;
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controls.target.set(0,0,0);
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controls.update();
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}
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function onWindowResize() {
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console.log('onWindowResize')
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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//
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function animate() {
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console.log('animate')
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requestAnimationFrame( animate );
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if (rotating) {
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// scene.rotation.y += -0.001;
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} else {
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// scene.rotation.y = scene.rotation.y;
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}
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renderer.render( scene, camera );
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}
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function pauseRotation() {
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console.log('pauseRotation')
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var modelBorder = document.getElementById("modelBorder");
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modelBorder.addEventListener("mouseenter", function( event ) {
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rotating = false;
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});
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modelBorder.addEventListener("mouseleave", function( event ) {
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rotating = true;
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});
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modelBorder.addEventListener('touchmove', function(e) {
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rotating = false;
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}, false);
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modelBorder.addEventListener('touchstart', function(e) {
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rotating = false;
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}, false);
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modelBorder.addEventListener('touchend', function(e) {
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rotating = true;
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}, false);
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}
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function setContent(object) {
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console.log('setContent')
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object.updateMatrixWorld();
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const box = new THREE.Box3().setFromObject(object);
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const size = box.getSize(new THREE.Vector3()).length();
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const boxSize = box.getSize(new THREE.Vector3());
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const center = box.getCenter(new THREE.Vector3());
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object.position.x += object.position.x - center.x;
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object.position.y += object.position.y - center.y;
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object.position.z += object.position.z - center.z;
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camera.position.copy(center);
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if (boxSize.x > boxSize.y) {
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camera.position.z = boxSize.x * -2.85
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} else {
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camera.position.z = boxSize.y * -2.85
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}
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camera.lookAt(0, 0, 0);
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} |