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misc_exporter_obj.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Verge3D webgl - exporter - obj</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://www.soft8soft.com/verge3d" target="_blank" rel="noopener">Verge3D</a> webgl - exporter - obj
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"v3d": "../build/v3d.module.js",
"v3d/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as v3d from 'v3d';
import { OrbitControls } from 'v3d/addons/controls/OrbitControls.js';
import { OBJExporter } from 'v3d/addons/exporters/OBJExporter.js';
import { GUI } from 'v3d/addons/libs/lil-gui.module.min.js';
let camera, scene, renderer;
const params = {
addTriangle: addTriangle,
addCube: addCube,
addCylinder: addCylinder,
addMultiple: addMultiple,
addTransformed: addTransformed,
addPoints: addPoints,
exportToObj: exportToObj
};
init();
animate();
function init() {
renderer = new v3d.WebGLRenderer();
renderer.outputEncoding = v3d.sRGBEncoding;
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
camera = new v3d.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 1, 1000);
camera.position.set(0, 0, 400);
scene = new v3d.Scene();
const ambientLight = new v3d.AmbientLight(0xcccccc, 0.4);
scene.add(ambientLight);
const directionalLight = new v3d.DirectionalLight(0xffffff, 0.8);
directionalLight.position.set(0, 1, 1);
scene.add(directionalLight);
const gui = new GUI();
let h = gui.addFolder('Geometry Selection');
h.add(params, 'addTriangle').name('Triangle');
h.add(params, 'addCube').name('Cube');
h.add(params, 'addCylinder').name('Cylinder');
h.add(params, 'addMultiple').name('Multiple objects');
h.add(params, 'addTransformed').name('Transformed objects');
h.add(params, 'addPoints').name('Point Cloud');
h = gui.addFolder('Export');
h.add(params, 'exportToObj').name('Export OBJ');
gui.open();
addGeometry(1);
window.addEventListener('resize', onWindowResize);
const controls = new OrbitControls(camera, renderer.domElement);
controls.enablePan = false;
}
function exportToObj() {
const exporter = new OBJExporter();
const result = exporter.parse(scene);
saveString(result, 'object.obj');
}
function addGeometry(type) {
for (let i = 0; i < scene.children.length; i++) {
const child = scene.children[i];
if (child.isMesh || child.isPoints) {
child.geometry.dispose();
scene.remove(child);
i --;
}
}
if (type === 1) {
const material = new v3d.MeshLambertMaterial({ color: 0x00cc00 });
const geometry = generateTriangleGeometry();
scene.add(new v3d.Mesh(geometry, material));
} else if (type === 2) {
const material = new v3d.MeshLambertMaterial({ color: 0x00cc00 });
const geometry = new v3d.BoxGeometry(100, 100, 100);
scene.add(new v3d.Mesh(geometry, material));
} else if (type === 3) {
const material = new v3d.MeshLambertMaterial({ color: 0x00cc00 });
const geometry = new v3d.CylinderGeometry(50, 50, 100, 30, 1);
scene.add(new v3d.Mesh(geometry, material));
} else if (type === 4 || type === 5) {
const material = new v3d.MeshLambertMaterial({ color: 0x00cc00 });
const geometry = generateTriangleGeometry();
const mesh = new v3d.Mesh(geometry, material);
mesh.position.x = -200;
scene.add(mesh);
const geometry2 = new v3d.BoxGeometry(100, 100, 100);
const mesh2 = new v3d.Mesh(geometry2, material);
scene.add(mesh2);
const geometry3 = new v3d.CylinderGeometry(50, 50, 100, 30, 1);
const mesh3 = new v3d.Mesh(geometry3, material);
mesh3.position.x = 200;
scene.add(mesh3);
if (type === 5) {
mesh.rotation.y = Math.PI / 4.0;
mesh2.rotation.y = Math.PI / 4.0;
mesh3.rotation.y = Math.PI / 4.0;
}
} else if (type === 6) {
const points = [0, 0, 0, 100, 0, 0, 100, 100, 0, 0, 100, 0];
const colors = [0.5, 0, 0, 0.5, 0, 0, 0, 0.5, 0, 0, 0.5, 0];
const geometry = new v3d.BufferGeometry();
geometry.setAttribute('position', new v3d.Float32BufferAttribute(points, 3));
geometry.setAttribute('color', new v3d.Float32BufferAttribute(colors, 3));
const material = new v3d.PointsMaterial({ size: 10, vertexColors: true });
const pointCloud = new v3d.Points(geometry, material);
pointCloud.name = 'point cloud';
scene.add(pointCloud);
}
}
function addTriangle() {
addGeometry(1);
}
function addCube() {
addGeometry(2);
}
function addCylinder() {
addGeometry(3);
}
function addMultiple() {
addGeometry(4);
}
function addTransformed() {
addGeometry(5);
}
function addPoints() {
addGeometry(6);
}
const link = document.createElement('a');
link.style.display = 'none';
document.body.appendChild(link);
function save(blob, filename) {
link.href = URL.createObjectURL(blob);
link.download = filename;
link.click();
}
function saveString(text, filename) {
save(new Blob([text], { type: 'text/plain' }), filename);
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
}
function generateTriangleGeometry() {
const geometry = new v3d.BufferGeometry();
const vertices = [];
vertices.push(- 50, -50, 0);
vertices.push(50, -50, 0);
vertices.push(50, 50, 0);
geometry.setAttribute('position', new v3d.Float32BufferAttribute(vertices, 3));
geometry.computeVertexNormals();
return geometry;
}
</script>
</body>
</html>