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sketch.js
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sketch.js
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// Controlling 3D character with voice classifier
// assignment for Yining Shi's ITP Fa21 ML for Web class
// Resources:
// EXCELLENT Tutorial from https://tympanus.net/codrops/2019/10/14/how-to-create-an-interactive-3d-character-with-three-js/
// check out my classmate's adaptation with the same tutorial + BlazePose: https://github.com/quavaro/blazepose-3d/
let scene,
renderer,
camera,
model, // Our character
neck, // Reference to the neck bone in the skeleton
waist, // Reference to the waist bone in the skeleton
possibleAnims, // Animations found in our file
mixer, // THREE.js animations mixer
idle, // Idle, the default state our character returns to
squat,
burpee,
jumpingjack,
clock = new THREE.Clock(), // Used for anims, which run to a clock instead of frame rate
currentlyAnimating = false, // Used to check whether characters neck is being used in another anim
raycaster = new THREE.Raycaster(), // Used to detect the click on our character
loaderAnim = document.getElementById('js-loader');
const mySoundModelURL = 'https://teachablemachine.withgoogle.com/models/G470IzpbC/' + 'model.json';
let mySoundModel, resultDiv;
let sfx, statusEl, instructionEl, rnHearing;
function preload() {
mySoundModel = ml5.soundClassifier(mySoundModelURL);
sfx = loadSound('assets/robot.mp3');
}
function setup() {
sfx.setVolume(0.01);
mySoundModel.classify(gotResults);
statusEl = createP('Loading model...');
instructionEl = createP('Try saying following keywords after model is loaded: Squat, Jumping Jack, Burpee');
rnHearing = createP('Hearing now...');
}
init();
function init() {
const MODEL_PATH = 'assets/squidGirl2.glb';
var loader = new THREE.GLTFLoader();
loader.load(
MODEL_PATH,
function(gltf) {
model = gltf.scene;
let fileAnimations = gltf.animations;
model.traverse(o => {
if (o.isMesh) {
o.castShadow = true;
o.receiveShadow = true;
}
if (o.isBone && o.name === 'mixamorigNeck') {
neck = o;
}
if (o.isBone && o.name === 'mixamorigSpine') {
waist = o;
}
});
// Set the models initial scale
model.scale.set(5, 5, 5);
model.position.y = -11;
scene.add(model);
loaderAnim.remove();
mixer = new THREE.AnimationMixer(model);
let idleAnim = THREE.AnimationClip.findByName(fileAnimations, 'idle');
idleAnim.tracks.splice(3, 3);
idleAnim.tracks.splice(9, 3);
idle = mixer.clipAction(idleAnim);
idle.play();
// squat
let squatAnim = THREE.AnimationClip.findByName(fileAnimations, 'squating');
squat = mixer.clipAction(squatAnim);
// burpee
let burpeeAnim = THREE.AnimationClip.findByName(fileAnimations, 'burpee');
burpee = mixer.clipAction(burpeeAnim);
// jumpingjack
let jumpingjackAnim = THREE.AnimationClip.findByName(fileAnimations, 'jumpingjack');
jumpingjack = mixer.clipAction(jumpingjackAnim);
},
undefined, // We don't need this function
function(error) {
console.error(error);
}
);
const canvas = document.querySelector('#c');
const backgroundColor = 0xf1f1f1;
// Init the scene
scene = new THREE.Scene();
scene.background = new THREE.Color(backgroundColor);
scene.fog = new THREE.Fog(backgroundColor, 60, 100);
// Init the renderer
renderer = new THREE.WebGLRenderer({ canvas, antialias: true });
renderer.shadowMap.enabled = true;
renderer.setPixelRatio(window.devicePixelRatio);
document.body.appendChild(renderer.domElement);
// Add a camera
camera = new THREE.PerspectiveCamera(
50,
window.innerWidth / window.innerHeight,
0.1,
1000
);
camera.position.z = 30
camera.position.x = 0;
camera.position.y = -3;
// Add lights
let hemiLight = new THREE.HemisphereLight(0xffffff, 0xffffff, 0.61);
hemiLight.position.set(0, 50, 0);
// Add hemisphere light to scene
scene.add(hemiLight);
let d = 8.25;
let dirLight = new THREE.DirectionalLight(0xffffff, 0.54);
dirLight.position.set(-8, 12, 8);
dirLight.castShadow = true;
dirLight.shadow.mapSize = new THREE.Vector2(1024, 1024);
dirLight.shadow.camera.near = 0.1;
dirLight.shadow.camera.far = 1500;
dirLight.shadow.camera.left = d * -1;
dirLight.shadow.camera.right = d;
dirLight.shadow.camera.top = d;
dirLight.shadow.camera.bottom = d * -1;
// Add directional Light to scene
scene.add(dirLight);
// Floor
let floorGeometry = new THREE.PlaneGeometry(5000, 5000, 1, 1);
let floorMaterial = new THREE.MeshPhongMaterial({
color: 0xeeeeee,
shininess: 0,
});
let floor = new THREE.Mesh(floorGeometry, floorMaterial);
floor.rotation.x = -0.5 * Math.PI; // This is 90 degrees by the way
floor.receiveShadow = true;
floor.position.y = -11;
scene.add(floor);
let geometry = new THREE.SphereGeometry(8, 32, 32);
let material = new THREE.MeshBasicMaterial({ color: 0xd5d3d6 }); // 0xf2ce2e, 0x9bffaf
let sphere = new THREE.Mesh(geometry, material);
sphere.position.z = -15;
sphere.position.y = -2.5;
sphere.position.x = -0.25;
// scene.add(sphere);
}
function update(){
if (mixer) {
mixer.update(clock.getDelta());
}
if (resizeRendererToDisplaySize(renderer)) {
const canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix();
}
renderer.render(scene, camera);
requestAnimationFrame(update);
}
update();
function resizeRendererToDisplaySize(renderer) {
const canvas = renderer.domElement;
let width = window.innerWidth;
let height = window.innerHeight;
let canvasPixelWidth = canvas.width / window.devicePixelRatio;
let canvasPixelHeight = canvas.height / window.devicePixelRatio;
const needResize = canvasPixelWidth !== width || canvasPixelHeight !== height;
if (needResize) {
renderer.setSize(width/2, height/2, false);
}
return needResize;
}
function gotResults(err, results) {
statusEl.html('model loaded');
if (err) console.log(err);
if (results) {
console.log(results[0].label);
if (results[0].confidence > 0.9 && results[0].label === 'Squat') {
console.log('squating');
rnHearing.html('I hear you said squat');
squat.play();
playModifierAnimation(idle, 0.25, squat, 0.25);
}
else if (results[0].confidence > 0.9 && results[0].label === 'Burpee'){
console.log('burpee');
rnHearing.html('I heard you said burpee');
burpee.play();
playModifierAnimation(idle, 0.25, burpee, 0.25);
}
else if (results[0].confidence > 0.9 && results[0].label === 'JumpingJack'){
console.log('jumping jack');
rnHearing.html('I hear you said jumping jack');
jumpingjack.play();
playModifierAnimation(idle, 0.25, jumpingjack, 0.25);
}
else {
rnHearing.html('Im hearing background noises');
}
}
}
function playModifierAnimation(from, fSpeed, to, tSpeed) {
// to.setLoop(THREE.LoopOnce);
to.setLoop(THREE.LoopRepeat);
to.reset();
to.play();
from.crossFadeTo(to, fSpeed, true);
sfx.play();
setTimeout(function() {
from.enabled = true;
to.crossFadeTo(from, tSpeed, true);
currentlyAnimating = false;
}, to._clip.duration * 2000 - ((tSpeed + fSpeed) * 1000));
}