117 lines
2.8 KiB
JavaScript
117 lines
2.8 KiB
JavaScript
import OrbitControlsClass from 'three-orbit-controls';
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import STLLoaderClass from 'three-stl-loader';
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import * as THREE from 'three/build/three.module';
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import MeshObject from './mesh_object';
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const STLLoader = STLLoaderClass(THREE);
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const OrbitControls = OrbitControlsClass(THREE);
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export default class Renderer {
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constructor(container) {
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this.renderWrapper = this.render.bind(this);
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this.objects = [];
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this.container = container;
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this.width = this.container.offsetWidth;
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this.height = 500;
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this.loader = new STLLoader();
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this.fov = 45;
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this.camera = new THREE.PerspectiveCamera(this.fov, this.width / this.height, 1, 1000);
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this.scene = new THREE.Scene();
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this.scene.add(this.camera);
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// Set up the viewer
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this.setupRenderer();
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this.setupGrid();
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this.setupLight();
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// Set up OrbitControls
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this.controls = new OrbitControls(this.camera, this.renderer.domElement);
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this.controls.minDistance = 5;
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this.controls.maxDistance = 30;
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this.controls.enableKeys = false;
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this.loadFile();
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}
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setupRenderer() {
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this.renderer = new THREE.WebGLRenderer({
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antialias: true,
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});
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this.renderer.setClearColor(0xffffff);
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this.renderer.setPixelRatio(window.devicePixelRatio);
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this.renderer.setSize(this.width, this.height);
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}
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setupLight() {
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// Point light illuminates the object
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const pointLight = new THREE.PointLight(0xffffff, 2, 0);
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pointLight.castShadow = true;
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this.camera.add(pointLight);
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// Ambient light illuminates the scene
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const ambientLight = new THREE.AmbientLight(0xffffff, 1);
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this.scene.add(ambientLight);
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}
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setupGrid() {
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this.grid = new THREE.GridHelper(20, 20, 0x000000, 0x000000);
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this.scene.add(this.grid);
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}
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loadFile() {
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this.loader.load(this.container.dataset.endpoint, (geo) => {
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const obj = new MeshObject(geo);
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this.objects.push(obj);
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this.scene.add(obj);
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this.start();
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this.setDefaultCameraPosition();
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});
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}
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start() {
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// Empty the container first
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this.container.innerHTML = '';
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// Add to DOM
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this.container.appendChild(this.renderer.domElement);
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// Make controls visible
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this.container.parentNode.classList.remove('is-stl-loading');
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this.render();
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}
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render() {
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this.renderer.render(this.scene, this.camera);
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requestAnimationFrame(this.renderWrapper);
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}
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changeObjectMaterials(material) {
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this.objects.forEach((obj) => {
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obj.changeMaterial(material);
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});
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}
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setDefaultCameraPosition() {
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const obj = this.objects[0];
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const radius = obj.geometry.boundingSphere.radius / 1.5;
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const dist = radius / Math.sin((this.fov * (Math.PI / 180)) / 2);
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this.camera.position.set(0, dist + 1, dist);
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this.camera.lookAt(this.grid);
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this.controls.update();
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}
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}
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