Three.js - Load .OBJ and .MTL file - Windmill2

by Thanos Saringelos

HTML

<canvas id="c"></canvas>

CSS

html, body {
  margin: 0;
  height: 100%;
}
#c {
  width: 100%;
  height: 100%;
  display: block;
}

JavaScript

// Three.js - Load .OBJ and .MTL file - Windmill2
// from https://threejsfundamentals.org/threejs/threejs-load-obj-materials-windmill2.html

import * as THREE from 'https://threejsfundamentals.org/threejs/resources/threejs/r127/build/three.module.js';
import {
  OrbitControls
} from 'https://threejsfundamentals.org/threejs/resources/threejs/r127/examples/jsm/controls/OrbitControls.js';
import {
  OBJLoader
} from 'https://threejsfundamentals.org/threejs/resources/threejs/r127/examples/jsm/loaders/OBJLoader.js';
import {
  MTLLoader
} from 'https://threejsfundamentals.org/threejs/resources/threejs/r127/examples/jsm/loaders/MTLLoader.js';

function main() {
  const canvas = document.querySelector('#c');
  const renderer = new THREE.WebGLRenderer({
    canvas
  });

  const fov = 45;
  const aspect = 2; // the canvas default
  const near = 0.1;
  const far = 100;
  const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
  camera.position.set(0, 10, 20);

  const controls = new OrbitControls(camera, canvas);
  controls.target.set(0, 5, 0);
  controls.update();

  const scene = new THREE.Scene();
  scene.background = new THREE.Color('black');
 

  {
    const skyColor = 0xB1E1FF; // light blue
    const groundColor = 0xB97A20; // brownish orange
    const intensity = 1;
    const light = new THREE.HemisphereLight(skyColor, groundColor, intensity);
    scene.add(light);
  }

  {
    const color = 0xFFFFFF;
    const intensity = 1;
    const light = new THREE.DirectionalLight(color, intensity);
    light.position.set(5, 10, 2);
    scene.add(light);
    scene.add(light.target);
  }

  function frameArea(sizeToFitOnScreen, boxSize, boxCenter, camera) {
    const halfSizeToFitOnScreen = sizeToFitOnScreen * 0.5;
    const halfFovY = THREE.MathUtils.degToRad(camera.fov * .5);
    const distance = halfSizeToFitOnScreen / Math.tan(halfFovY);
    // compute a unit vector that points in the direction the camera is now
    // in the xz plane from the center of the...