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+<!-- Licensed under a BSD license. See license.html for license -->
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+<!DOCTYPE html>
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+<html>
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+ <head>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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+ <title>Three.js - Game - Load Models</title>
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+ <style>
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+ html, body {
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+ margin: 0;
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+ height: 100%;
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+ }
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+ #c {
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+ width: 100%;
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+ height: 100%;
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+ display: block;
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+ }
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+ #loading {
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+ position: absolute;
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+ left: 0;
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+ top: 0;
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+ width: 100%;
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+ height: 100%;
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+ display: flex;
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+ align-items: center;
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+ justify-content: center;
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+ text-align: center;
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+ font-size: xx-large;
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+ font-family: sans-serif;
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+ }
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+ #loading>div>div {
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+ padding: 2px;
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+ }
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+ .progress {
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+ width: 50vw;
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+ border: 1px solid black;
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+ }
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+ #progressbar {
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+ width: 0%;
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+ height: 1em;
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+ background-color: #888;
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+ background-image: linear-gradient(
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+ -45deg,
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+ rgba(255, 255, 255, .5) 25%,
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+ transparent 25%,
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+ transparent 50%,
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+ rgba(255, 255, 255, .5) 50%,
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+ rgba(255, 255, 255, .5) 75%,
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+ transparent 75%,
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+ transparent
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+ );
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+ background-size: 50px 50px;
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+ animation: progressanim 2s linear infinite;
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+ }
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+
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+ @keyframes progressanim {
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+ 0% {
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+ background-position: 50px 50px;
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+ }
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+ 100% {
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+ background-position: 0 0;
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+ }
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+ }
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+ </style>
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+ </head>
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+ <body>
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+ <canvas id="c"></canvas>
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+ <div id="loading">
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+ <div>
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+ <div>...loading...</div>
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+ <div class="progress"><div id="progressbar"></div></div>
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+ </div>
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+ </div>
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+ </body>
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+<script src="resources/threejs/r105/three.min.js"></script>
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+<script src="resources/threejs/r105/js/controls/OrbitControls.js"></script>
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+<script src="resources/threejs/r105/js/loaders/GLTFLoader.js"></script>
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+<script src="resources/threejs/r105/js/utils/SkeletonUtils.js"></script>
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+<script>
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+'use strict';
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+
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+/* global THREE */
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+
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+function main() {
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+ const canvas = document.querySelector('#c');
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+ const renderer = new THREE.WebGLRenderer({canvas});
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+
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+ const fov = 45;
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+ const aspect = 2; // the canvas default
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+ const near = 0.1;
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+ const far = 100;
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+ const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
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+ camera.position.set(0, 20, 40);
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+
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+ const controls = new THREE.OrbitControls(camera, canvas);
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+ controls.target.set(0, 5, 0);
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+ controls.update();
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+
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+ const scene = new THREE.Scene();
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+ scene.background = new THREE.Color('white');
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+
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+ function addLight(...pos) {
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+ const color = 0xFFFFFF;
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+ const intensity = 1;
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+ const light = new THREE.DirectionalLight(color, intensity);
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+ light.position.set(...pos);
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+ scene.add(light);
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+ scene.add(light.target);
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+ }
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+ addLight(5, 5, 2);
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+ addLight(-5, 5, 5);
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+
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+ const manager = new THREE.LoadingManager();
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+ manager.onLoad = init;
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+
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+ const progressbarElem = document.querySelector('#progressbar');
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+ manager.onProgress = (url, itemsLoaded, itemsTotal) => {
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+ progressbarElem.style.width = `${itemsLoaded / itemsTotal * 100 | 0}%`;
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+ };
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+
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+ const models = {
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+ pig: { url: 'resources/models/animals/Pig.gltf' },
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+ cow: { url: 'resources/models/animals/Cow.gltf' },
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+ llama: { url: 'resources/models/animals/llama.gltf' },
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+ pug: { url: 'resources/models/animals/pug.gltf' },
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+ sheep: { url: 'resources/models/animals/sheep.gltf' },
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+ zebra: { url: 'resources/models/animals/zebra.gltf' },
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+ horse: { url: 'resources/models/animals/horse.gltf' },
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+ knight: { url: 'resources/models/knight/KnightCharacter.gltf' },
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+ };
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+ {
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+ const gltfLoader = new THREE.GLTFLoader(manager);
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+ Object.values(models).forEach((model) => {
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+ gltfLoader.load(model.url, (gltf) => {
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+ console.log('loaded:', model.url);
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+ model.gltf = gltf;
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+ }, undefined, (error) => {
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+ console.error(model.url, error);
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+ });
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+ });
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+ }
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+
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+ /* eslint no-console: "off" */
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+ function prepModelsAndAnimations() {
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+ console.log('prep models-----------------');
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+ Object.values(models).forEach(model => {
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+ const animsByName = {};
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+ console.log(model.url, model.gltf ? 'has gltf' : 'missing gltf');
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+ model.gltf.animations.forEach((clip) => {
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+ animsByName[clip.name] = clip;
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+ });
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+ model.animations = animsByName;
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+ });
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+ }
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+
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+ const mixers = [];
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+
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+ function init() {
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+ // hide the loading bar
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+ const loadingElem = document.querySelector('#loading');
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+ loadingElem.style.display = 'none';
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+
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+ prepModelsAndAnimations();
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+
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+ Object.values(models).forEach((model, ndx) => {
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+ const clonedScene = THREE.SkeletonUtils.clone(model.gltf.scene);
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+ const root = new THREE.Object3D();
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+ root.add(clonedScene);
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+ scene.add(root);
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+ root.position.x = (ndx - 3) * 3;
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+
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+ const mixer = new THREE.AnimationMixer(clonedScene);
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+ const firstClip = Object.values(model.animations)[0];
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+ const action = mixer.clipAction(firstClip);
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+ action.play();
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+ mixers.push(mixer);
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+ });
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+ }
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+
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+ function resizeRendererToDisplaySize(renderer) {
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+ const canvas = renderer.domElement;
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+ const width = canvas.clientWidth;
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+ const height = canvas.clientHeight;
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+ const needResize = canvas.width !== width || canvas.height !== height;
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+ if (needResize) {
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+ renderer.setSize(width, height, false);
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+ }
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+ return needResize;
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+ }
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+
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+ let then = 0;
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+ function render(now) {
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+ now *= 0.001; // convert to seconds
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+ const deltaTime = now - then;
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+ then = now;
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+
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+ if (resizeRendererToDisplaySize(renderer)) {
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+ const canvas = renderer.domElement;
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+ camera.aspect = canvas.clientWidth / canvas.clientHeight;
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+ camera.updateProjectionMatrix();
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+ }
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+
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+ for (const mixer of mixers) {
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+ mixer.update(deltaTime);
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+ }
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+
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+ renderer.render(scene, camera);
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+
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+ requestAnimationFrame(render);
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+ }
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+
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+ requestAnimationFrame(render);
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+}
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+
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+main();
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+</script>
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+</html>
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+
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Gregg Tavares