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NScript22-5.js
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NScript22-5.js
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const charpstarVTO = {
element: null,
artNo: null,
glbLink: null,
videoElement: null,
canvasElement: null,
sceneManager: null,
useOrtho: true,
debug: false,
glassClass: null,
facemeshLandmarksProvider: null,
popup: null,
slider: null,
sliderValue: null,
loaderCircle : null,
cameraDistance: function (height, fov) {
return (height / 2) / Math.tan((fov / 2) * Math.PI / 180);
},
createDepthPackingShader: function () {
const vertexShader = `
varying vec2 vUv;
void main() {
vUv = uv;
gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
}
`;
const fragmentShader = `
varying vec2 vUv;
uniform sampler2D tDiffuse;
uniform float cameraNear;
uniform float cameraFar;
void main() {
float depth = texture2D(tDiffuse, vUv).r;
float clipZ = cameraNear * cameraFar / (depth * (cameraFar - cameraNear) - cameraFar);
gl_FragColor = vec4(vec3(1.0 - ((clipZ - cameraNear) / (cameraFar - cameraNear))), 1.0);
}
`;
return {
vertexShader: vertexShader,
fragmentShader: fragmentShader,
};
},
scaleLandmark: function (landmark, width, height) {
let {
x,
y,
z
} = landmark;
return {
...landmark,
x: x * width,
y: y * height,
z: z * width,
}
},
transformLandmarks: function (landmarks) {
if (!landmarks) {
return landmarks;
}
let hasVisiblity = !!landmarks.find(l => l.visibility);
let minZ = 1e-2;
if (hasVisiblity) {
console.log(z);
landmarks.forEach(landmark => {
let {
z,
visibility
} = landmark;
z = -z;
if (z < minZ && visibility) {
minZ = z
}
});
} else {
minZ = Math.max(-landmarks[234].z, -landmarks[454].z) - 0.1;
}
return landmarks.map(landmark => {
let {
x,
y,
z
} = landmark;
return {
x: -0.5 + x,
y: 0.5 - y,
z: -z - minZ,
visibility: landmark.visibility,
}
});
},
init: function () {
this.element = document.getElementById("charpstarVTOE");
this.artNo = this.element.getAttribute("data-articleid");
this.modelConnection = `${this.artNo}.glb`;
if (this.element) {
this.element.addEventListener('click', this.createPopup.bind(this), false);
}
},
createPopup() {
if (typeof this.popup != 'undefined') {
if (this.popup != null) {
return;
}
}
// Create popup
this.popup = document.createElement("div");
this.popup.style.position = "fixed";
this.popup.style.top = "0";
this.popup.style.left = "0";
this.popup.style.width = "100%";
this.popup.style.height = "100%";
this.popup.style.zIndex = "9999";
this.popup.style.backgroundColor = "rgba(0, 0, 0, 0.5)"; // Adding some transparency to see the content beneath
this.popup.style.display = "flex";
this.popup.style.justifyContent = "center";
this.popup.style.alignItems = "center";
this.popup.id = "charpstar-vtopop";
var videoWrapper = document.createElement("div");
videoWrapper.style.overflow = "hidden";
videoWrapper.style.position = "relative";
videoWrapper.style.display = "flex";
videoWrapper.style.flexDirection = "column";
videoWrapper.style.alignItems = "center"; // Centers children vertically in the container
videoWrapper.style.justifyContent = "center";
videoWrapper.style.height = "100%";
videoWrapper.style.width = "auto";
videoWrapper.style.aspectRatio = "550/500";
videoWrapper.style.maxHeight = "min(90%,90vw/1.1)";
videoWrapper.style.maxWidth = "90vw";
videoWrapper.style.borderRadius = "2%"
videoWrapper.style.backgroundColor = "#000"
// videoWrapper.style.transform = "translate3d(0,30%,0)";
// Create video element
var video = document.createElement("video");
video.className = "charpstarVTOV";
video.id = "charpstar-video";
video.autoplay = true;
video.playsInline = true;
video.style.height = "100%";
video.style.position = "absolute";
video.style.zIndex = "10000";
video.style.transform = "scaleX(-1)";
video.style.objectFit = "cover";
video.style.visibility = "hidden";
video.style.zIndex = "10000";
this.slider = document.createElement("input");
this.slider.type = "range";
this.slider.min = "-50"; // minimum value
this.slider.max = "50"; // maximum value
this.slider.value = "0"; // initial position
this.slider.className = "slider";
this.slider.id = "charpstar-slider";
this.slider.style.position = "absolute";
this.slider.style.right = "50px";
this.slider.style.top = "35%";
this.slider.style.width = "200px";
this.slider.style.height = "20px";
this.slider.style.zIndex = "10003"; // make sure it's above other elements
this.slider.style.transform = "rotate(270deg)"; // rotate to make it vertical
this.slider.style.transformOrigin = "right";
this.slider.style.backgroundColor = "transparent";
// Set up the event listener
this.sliderValue = 0;
this.slider.oninput = function () {
charpstarVTO.sliderValue = this.value;
}; // Bind 'this' so it refers to the correct context inside the function
// Generate a unique ID for the style tag
var styleId = 'charpstar-slider-style-' + Math.floor(Math.random() * 1000000);
// Create the style tag with the unique ID
var style = document.createElement('style');
style.id = styleId;
style.type = 'text/css';
style.innerHTML = `
input#charpstar-slider[type=range] {
height: 40px;
-webkit-appearance: none;
width: 100%;
}
input#charpstar-slider[type=range]::-webkit-slider-runnable-track {
width: 100%;
height: 10px;
cursor: pointer;
animate: 0.2s;
box-shadow: 0px 0px 0px 1px #CECECE;
background: #ffffff;
border-radius: 1px;
border: 0px solid #ffffff;
}
input#charpstar-slider[type=range]::-webkit-slider-thumb {
box-shadow: 0px 0px 1px #858789;
border: 0px solid #c9c9c9;
height: 20px;
width: 20px;
border-radius: 0px;
background: #ffffff;
cursor: pointer;
-webkit-appearance: none;
margin-top: -5px;
}
input#charpstar-slider[type=range]:focus::-webkit-slider-runnable-track {
background: #ffffff;
}
input#charpstar-slider[type=range]::-moz-range-track {
width: 100%;
height: 10px;
cursor: pointer;
animate: 0.2s;
box-shadow: 0px 0px 0px #CECECE;
background: #ffffff;
border-radius: 1px;
border: 0px solid #ffffff;
}
input#charpstar-slider[type=range]::-moz-range-thumb {
box-shadow: 0px 0px 1px #858789;
border: 0px solid #c9c9c9;
height: 20px;
width: 20px;
border-radius: 0px;
background: #ffffff;
cursor: pointer;
}
input#charpstar-slider[type=range]::-ms-track {
width: 100%;
height: 10px;
cursor: pointer;
animate: 0.2s;
background: transparent;
border-color: transparent;
color: transparent;
}
input#charpstar-slider[type=range]::-ms-fill-lower {
background: #ffffff;
border: 0px solid #ffffff;
border-radius: 2px;
box-shadow: 0px 0px 0px #CECECE;
}
input#charpstar-slider[type=range]::-ms-fill-upper {
background: #ffffff;
border: 0px solid #ffffff;
border-radius: 2px;
box-shadow: 0px 0px 0px #CECECE;
}
input#charpstar-slider[type=range]::-ms-thumb {
margin-top: 1px;
box-shadow: 0px 0px 1px #858789;
border: 0px solid #c9c9c9;
height: 20px;
width: 20px;
border-radius: 0px;
background: #ffffff;
cursor: pointer;
}
input#charpstar-slider[type=range]:focus::-ms-fill-lower {
background: #ffffff;
}
input#charpstar-slider[type=range]:focus::-ms-fill-upper {
background: #ffffff;
}
@media (-ms-high-contrast:none),(-ms-high-contrast:active) {
input#charpstar-slider[type=range] {
height: 60px;
}
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
`;
// Create canvas element
var canvas = document.createElement("canvas");
canvas.className = "charpstarVTOC";
canvas.id = "charpstar-canvas";
canvas.style.height = "100%";
canvas.style.position = "absolute";
canvas.style.zIndex = "10002"; // To overlap the video element
canvas.style.transform = "scaleX(-1)";
// Create canvas element
var canvasV = document.createElement("canvas");
canvasV.className = "charpstarVTOVid";
canvasV.id = "charpstar-canvasVid";
canvasV.style.height = "100%";
canvasV.style.position = "absolute";
canvasV.style.zIndex = "10001"; // To overlap the video element
canvasV.style.transform = "scaleX(-1)";
// Create close button
var closeButton = document.createElement("span");
closeButton.innerHTML = "×";
closeButton.style.position = "absolute";
closeButton.style.top = "10px";
closeButton.style.right = "30px";
closeButton.style.fontSize = "70";
closeButton.style.fontWeight = "bold";
closeButton.style.color = "#fff";
closeButton.style.cursor = "pointer";
closeButton.style.zIndex = "10003"; // To make sure it's above the video and canvas
closeButton.onclick = function () {
charpstarVTO.terminateVTO();
};
// Create loading circle
this.loaderCircle = document.createElement("div");
this.loaderCircle.className = "loader";
this.loaderCircle.style.border = "6px solid #ddd";
this.loaderCircle.style.borderTop = "6px solid #333";
this.loaderCircle.style.borderRadius = "50%";
this.loaderCircle.style.width = "50px";
this.loaderCircle.style.height = "50px";
this.loaderCircle.style.animation = "spin 3s linear infinite";
this.loaderCircle.style.position = "absolute";
this.loaderCircle.style.zIndex = "10004";
this.loaderCircle.id = "charpstar-loader";
videoWrapper.appendChild(video);
videoWrapper.appendChild(canvasV);
videoWrapper.appendChild(canvas);
videoWrapper.appendChild(closeButton);
videoWrapper.appendChild(this.slider);
videoWrapper.appendChild(this.loaderCircle);
this.popup.appendChild(style);
this.popup.appendChild(videoWrapper);
document.body.appendChild(this.popup);
var script = document.createElement('script');
script.src = 'https://js.charpstar.net/VTO/scripts/three.min.js';
script.onload = function() {
charpstarVTO.sceneManager = new SceneManager(canvas, canvasV, true, charpstarVTO.useOrtho);
charpstarVTO.videoElement = video;
charpstarVTO.initateVTO()
};
document.head.appendChild(script);
},
terminateVTO() {
if (this.popup != null) {
this.popup.parentElement.removeChild(this.popup);
this.popup = null;
}
let stream = charpstarVTO.videoElement.srcObject;
if (stream) {
let tracks = stream.getTracks();
tracks.forEach(function (track) {
track.stop();
});
}
charpstarVTO.videoElement.srcObject = null;
if (typeof charpstarVTO.facemeshLandmarksProvider.remove === 'function') {
charpstarVTO.facemeshLandmarksProvider.remove();
} else {
console.error('facemeshLandmarksProvider.remove is not a function');
}
if (charpstarVTO.glassClass) {
charpstarVTO.glassClass.removeGlasses();
}
},
async initateVTO() {
let videoFrameProvider;
let previousLandmarks = null;
const onLandmarks = ({
image,
landmarks
}) => {
if (landmarks && previousLandmarks) {
const alpha = 0.8;
for (let i = 0; i < landmarks.length; i++) {
landmarks[i].x = exponentialMovingAverage(alpha, landmarks[i].x, previousLandmarks[i].x);
landmarks[i].y = exponentialMovingAverage(alpha, landmarks[i].y, previousLandmarks[i].y);
landmarks[i].z = exponentialMovingAverage(alpha, landmarks[i].z, previousLandmarks[i].z);
}
}
if (landmarks) {
previousLandmarks = landmarks;
charpstarVTO.sceneManager.onLandmarks(image, landmarks);
}
};
function exponentialMovingAverage(alpha, newValue, oldValue) {
return alpha * newValue + (1 - alpha) * oldValue;
}
const onFrame = async (video) => {
try {
await charpstarVTO.facemeshLandmarksProvider.send(charpstarVTO.videoElement);
} catch (e) {
charpstarVTO.terminateVTO();
videoFrameProvider.stop();
}
}
function animate() {
requestAnimationFrame(animate);
charpstarVTO.sceneManager.resize(charpstarVTO.videoElement.clientWidth, charpstarVTO.videoElement.clientHeight);
charpstarVTO.sceneManager.animate();
}
charpstarVTO.facemeshLandmarksProvider = new FacemeshLandmarksProvider(onLandmarks);
if (confirm("Use Camera?")) {
charpstarVTO.videoElement.pause();
charpstarVTO.videoElement.removeAttribute('src');
charpstarVTO.videoElement.load();
videoFrameProvider = new CameraFrameProvider(charpstarVTO.videoElement, onFrame);
} else {
charpstarVTO.terminateVTO();
videoFrameProvider.stop();
console.log("Cannot start VTO without Camera Permission. Ending session");
return;
//videoFrameProvider = new VideoFrameProvider(charpstarVTO.videoElement, onFrame);
}
await charpstarVTO.facemeshLandmarksProvider.initialize();
videoFrameProvider.start();
animate();
},
};
class Glasses {
constructor(scene, width, height, environmentMap, renderer) {
this.scene = scene;
this.renderer = renderer;
this.width = width;
this.height = height;
this.needsUpdate = false;
this.landmarks = null;
this.environmentMap = environmentMap;
this.loadGlasses();
this.loadFaceOccluder("headOccluder.glb");
this.midEyesSmoother = new Smoother(0.9, new THREE.Vector3(0, 0, 0));
this.scaleSmoother = new Smoother(0.3, 1);
this.xRotSmoother = new Smoother(0, 0);
this.yRotSmoother = new Smoother(0, 0);
this.zRotSmoother = new Smoother(0.5, 0);
}
async loadFaceOccluder(e) {
return new Promise(((t, s) => {
(new THREE.GLTFLoader).load(e, (e => {
this.faceOccluder = e.scene;
this.faceOccluder.visible = !0;
this.faceOccluder.traverse((e => {
if (e.isMesh) {
const depthPackingShader = charpstarVTO.createDepthPackingShader();
e.material = new THREE.MeshDepthMaterial({
depthPacking: THREE.RGBADepthPacking,
side: THREE.DoubleSide,
});
e.material.colorWrite = false;
e.position.set(1, 0, 0);
e.scale.set(1, 1, 1);
e.renderOrder = 1;
}
}));
this.scene.add(this.faceOccluder);
t();
}), void 0, (e => {
s(e);
}));
}));
}
async loadGlasses() {
if (charpstarVTO.loaderCircle) {
charpstarVTO.loaderCircle.style.visibility = "visible";
}
let file = charpstarVTO.modelConnection;
const ktx2Loader = new THREE.KTX2Loader();
ktx2Loader.setTranscoderPath('https://js.charpstar.net/VTO/Compression/');
ktx2Loader.detectSupport(this.renderer);
return new Promise((res, rej) => {
const loader = new THREE.GLTFLoader();
const dracoLoader = new THREE.DRACOLoader()
dracoLoader.setDecoderPath('https://js.charpstar.net/VTO/Compression/')
loader.setDRACOLoader(dracoLoader)
loader.setKTX2Loader(ktx2Loader);
loader.load(
file,
(gltf) => {
gltf.scene.traverse((node) => {
if (node.isMesh) {
const material = node.material;
material.envMap = this.environmentMap;
// Set encoding, format, and type for all relevant textures
const setTextureEncoding = (texture) => {
if (texture) {
texture.encoding = THREE.LinearEncoding;
}
};
setTextureEncoding(material.map);
setTextureEncoding(material.roughnessMap);
setTextureEncoding(material.metalnessMap);
setTextureEncoding(material.normalMap);
setTextureEncoding(material.alphaMap);
// setTextureEncoding(material.emissiveMap);
setTextureEncoding(material.aoMap);
material.needsUpdate = true;
if (node.isMesh && node.material) {
node.material.depthTest = true;
node.renderOrder = 2;
}
material.needsUpdate = true;
}
});
this.glasses = gltf.scene;
// scale glasses
const bbox = new THREE.Box3().setFromObject(this.glasses);
const size = bbox.getSize(new THREE.Vector3());
this.scaleFactor = size.x * 1; // Increase the size by 20%
this.glasses.name = "glasses";
res();
if (charpstarVTO.loaderCircle) {
charpstarVTO.loaderCircle.style.visibility = "hidden";
}
},
undefined,
function (error) {
rej(error);
}
);
});
}
updateDimensions(width, height) {
this.width = width;
this.height = height;
this.needsUpdate = true;
}
updateLandmarks(landmarks) {
this.landmarks = landmarks;
this.needsUpdate = true;
}
updateGlasses() {
// Points for reference
let midEyes = charpstarVTO.scaleLandmark(this.landmarks[168], this.width, this.height);
let leftEyeInnerCorner = charpstarVTO.scaleLandmark(this.landmarks[463], this.width, this.height);
let rightEyeInnerCorner = charpstarVTO.scaleLandmark(this.landmarks[243], this.width, this.height);
let noseBottom = charpstarVTO.scaleLandmark(this.landmarks[2], this.width, this.height);
let leftEyeUpper1 = charpstarVTO.scaleLandmark(this.landmarks[264], this.width, this.height);
let rightEyeUpper1 = charpstarVTO.scaleLandmark(this.landmarks[34], this.width, this.height);
let topFace = charpstarVTO.scaleLandmark(this.landmarks[10], this.width, this.height);
let bottomFace = charpstarVTO.scaleLandmark(this.landmarks[152], this.width, this.height);
var midEyesYPos = midEyes.y + (charpstarVTO.sliderValue * 0.3);
if (this.glasses) {
// position
this.glasses.position.set(
midEyes.x,
midEyesYPos,
midEyes.z,
)
// scale to make glasses as wide as distance between left eye corner and right eye corner
const eyeDist = Math.sqrt(
(leftEyeUpper1.x - rightEyeUpper1.x) ** 2 +
(leftEyeUpper1.y - rightEyeUpper1.y) ** 2 +
(leftEyeUpper1.z - rightEyeUpper1.z) ** 2
);
const scale = eyeDist / this.scaleFactor;
this.glasses.scale.set(scale, scale, scale);
// use two vectors to rotate glasses
let upVector = new THREE.Vector3(
midEyes.x - noseBottom.x,
midEyes.y - noseBottom.y,
midEyes.z - noseBottom.z,
).normalize();
let sideVector = new THREE.Vector3(
leftEyeInnerCorner.x - rightEyeInnerCorner.x,
leftEyeInnerCorner.y - rightEyeInnerCorner.y,
leftEyeInnerCorner.z - rightEyeInnerCorner.z,
).normalize();
let zRot = (new THREE.Vector3(1, 0, 0)).angleTo(
upVector.clone().projectOnPlane(
new THREE.Vector3(0, 0, 1)
)
) - (Math.PI / 2)
let xRot = (Math.PI / 2) - (new THREE.Vector3(0, 0, 1)).angleTo(
upVector.clone().projectOnPlane(
new THREE.Vector3(1, 0, 0)
)
);
let yRot = (
new THREE.Vector3(sideVector.x, 0, sideVector.z)
).angleTo(new THREE.Vector3(0, 0, 1)) - (Math.PI / 2);
// Add the rotation values to the smoothers
this.xRotSmoother.addValue(xRot);
this.yRotSmoother.addValue(yRot);
this.zRotSmoother.addValue(zRot);
// Use the smoothed rotation values
let smoothedXRot = this.xRotSmoother.getAverage();
let smoothedYRot = this.yRotSmoother.getAverage();
let smoothedZRot = this.zRotSmoother.getAverage();
this.glasses.rotation.set(smoothedXRot, smoothedYRot, smoothedZRot);
}
}
updateFaceOccluder(occluder) {
if (!occluder) {
return;
}
let midEyes = charpstarVTO.scaleLandmark(this.landmarks[168], this.width, this.height);
let topFace = charpstarVTO.scaleLandmark(this.landmarks[10], this.width, this.height);
let bottomFace = charpstarVTO.scaleLandmark(this.landmarks[152], this.width, this.height);
let leftEyeInnerCorner = charpstarVTO.scaleLandmark(this.landmarks[463], this.width, this.height);
let rightEyeInnerCorner = charpstarVTO.scaleLandmark(this.landmarks[243], this.width, this.height);
let noseBottom = charpstarVTO.scaleLandmark(this.landmarks[2], this.width, this.height);
let leftCheek = charpstarVTO.scaleLandmark(this.landmarks[234], this.width, this.height);
let rightCheek = charpstarVTO.scaleLandmark(this.landmarks[454], this.width, this.height);
// position
occluder.position.set(
midEyes.x,
midEyes.y,
midEyes.z, // Adjust this value to change the occluder's distance from the face
);
// scale to make occluder
// 50% bigger than the distance between
// left cheek and right cheek
var scaleX = Math.abs(topFace.y - bottomFace.y) * 0.7;
var scaleY = Math.abs(topFace.y - bottomFace.y) * 0.7;
var scaleZ = Math.abs(topFace.y - bottomFace.y) * 0.7;
occluder.scale.set(scaleX / 100, scaleY / 100, scaleZ / 100);
let upVector = new THREE.Vector3(
midEyes.x - noseBottom.x,
midEyes.y - noseBottom.y,
midEyes.z - noseBottom.z,
).normalize();
let sideVector = new THREE.Vector3(
leftEyeInnerCorner.x - rightEyeInnerCorner.x,
leftEyeInnerCorner.y - rightEyeInnerCorner.y,
leftEyeInnerCorner.z - rightEyeInnerCorner.z,
).normalize();
let zRot = (new THREE.Vector3(1, 0, 0)).angleTo(
upVector.clone().projectOnPlane(
new THREE.Vector3(0, 0, 1)
)
) - (Math.PI / 2);
let xRot = (Math.PI / 2) - (new THREE.Vector3(0, 0, 1)).angleTo(
upVector.clone().projectOnPlane(
new THREE.Vector3(1, 0, 0)
)
);
xRot = Math.max(-Math.PI / 4, Math.min(Math.PI / 4, xRot));
let yRot = (
new THREE.Vector3(sideVector.x, 0, sideVector.z)
).angleTo(new THREE.Vector3(0, 0, 1)) - (Math.PI / 2);
occluder.rotation.set(xRot, yRot, zRot);
occluder.visible = true;
}
addGlasses() {
if (this.glasses) {
this.scene.add(this.glasses);
}
}
removeGlasses() {
this.scene.remove(this.glasses);
}
update() {
if (this.needsUpdate) {
let inScene = !!this.scene.getObjectByName('glasses');
let shouldShow = !!this.landmarks;
if (inScene) {
shouldShow ? this.updateGlasses() : this.removeGlasses();
} else {
if (shouldShow) {
this.addGlasses();
}
}
}
}
}
class SceneManager {
constructor(canvas, canvasV, debug = false, useOrtho = true) {
this.canvas = canvas;
this.canvasV = canvasV;
this.scene = new THREE.Scene();
this.videoScene = new THREE.Scene();
this.useOrtho = useOrtho;
this.renderer = new THREE.WebGLRenderer({
canvas: this.canvas,
devicePixelRatio: window.devicePixelRatio || 1,
context: canvas.getContext("webgl2"),
antialias: true,
alpha: true
});
this.rendererVideo = new THREE.WebGLRenderer({
canvas: this.canvasV,
});
// this.rendererVideo.outputEncoding = THREE.sRGBEncoding;
this.renderer.outputEncoding = THREE.sRGBEncoding;
this.renderer.physicallyCorrectLights = true;
this.renderer.toneMapping = THREE.ACESFilmicToneMapping;
this.renderer.toneMappingExposure = 0.5;
this.fov = 63;
this.environmentMap = null;
this.buildCamera();
this.buildControls();
this.buildVideoBg();
this.loadEnvironmentMap();
const renderSceneVideo = new THREE.RenderPass(this.videoScene, this.camera);
const renderScene = new THREE.RenderPass(this.scene, this.camera);
}
async loadEnvironmentMap() {
const loader = new THREE.RGBELoader();
const texture = await new Promise((resolve, reject) => {
loader.load(
'https://js.charpstar.net/VTO/hdr/v1-swe.hdr',
(texture) => {
// Set the encoding of the texture
// texture.encoding = THREE.sRGBEncoding;
texture.mapping = THREE.EquirectangularReflectionMapping;
resolve(texture);
},
undefined,
reject
);
});
const envMap = texture;
this.scene.environment = envMap;
this.buildLights();
this.buildGlasses();
return envMap;
}
buildVideoBg() {
// video background for canvas
this.videoBg = new VideoBackground(this.videoScene,
this.rendererVideo.domElement.width,
this.rendererVideo.domElement.height
);
}
buildGlasses() {
charpstarVTO.glassClass = new Glasses(this.scene, this.renderer.domElement.width, this.renderer.domElement.height, this.environmentMap, this.renderer)
}
buildLights() {
// Add an ambient light
const ambientLight = new THREE.AmbientLight(0xffffff, 0.4);
this.scene.add(ambientLight);
// Add a directional light
const pointLight = new THREE.PointLight(0xffffff, 0.1);
pointLight.position.set(0, 50, 100);
// this.scene.add(pointLight);
}
buildControls() {
if (this.debug) {
this.controls = new OrbitControls(
this.camera, this.renderer.domElement
);
this.controls.update();
}
}
buildCamera() {
this.useOrtho ? this.buildOrthoCamera() : this.buildPerspectiveCamera();
}
buildOrthoCamera() {
this.camera = new THREE.OrthographicCamera(
-this.renderer.domElement.width / 2,
this.renderer.domElement.width / 2,
this.renderer.domElement.height / 2,
-this.renderer.domElement.height / 2,
-2000,
2000
)
this.camera.position.z = 1
}
buildPerspectiveCamera() {
this.camera = new THREE.PerspectiveCamera(
this.fov,
this.renderer.domElement.width / this.renderer.domElement.height,
0.06, // near
10000, // far
)
this.camera.position.z = charpstarVTO.cameraDistance(
this.renderer.domElement.height,
this.fov
);
}
// we need to resize canvas rendering dimensions
// when canvas sytling dimensions change
resizeRendererToDisplaySize() {
const canvas = this.renderer.domElement;
const canvasV = this.rendererVideo.domElement;
// match dimension of canvas with
// dimension of video
if (this.videoWidth != canvas.clientWidth ||
this.videoHeight != canvas.clientHeight) {
const width = this.videoWidth;
const height = this.videoHeight;
canvas.style.width = `${width}px`;
canvas.style.height = `${height}px`;
canvasV.style.width = `${width}px`;
canvasV.style.height = `${height}px`;
}
// canvas has 2 width
// 1) style width set with style attribute
// 2) rendering width set with width and height attribute
// update rendering width to match styling width.
const width = canvas.clientWidth | 0;
const height = canvas.clientHeight | 0;
const needResize = canvas.width !== width || canvas.height !== height;
if (needResize) {
this.renderer.setSize(width, height, false);
this.rendererVideo.setSize(width, height, false);
}
return needResize;
}
updateCamera() {
// camera need to be adjusted according to
// renderer dimensions
this.camera.aspect = this.videoWidth / this.videoHeight;
if (this.camera.type == 'OrthographicCamera') {
this.camera.top = this.videoHeight / 2
this.camera.bottom = -this.videoHeight / 2
this.camera.left = -this.videoWidth / 2
this.camera.right = this.videoWidth / 2
} else {
this.camera.position.z = charpstarVTO.cameraDistance(this.videoHeight, this.fov);
}
this.camera.updateProjectionMatrix();
}
animate() {
if (this.controls) {
this.controls.update();
}
if (this.resizeRendererToDisplaySize()) {
charpstarVTO.glassClass.updateDimensions(
this.renderer.domElement.width,
this.renderer.domElement.height
);
this.videoBg.updateDimensions(
this.rendererVideo.domElement.width,
this.rendererVideo.domElement.height
);
this.updateCamera();
}
this.videoBg.update();
charpstarVTO.glassClass.update();
if (charpstarVTO.glassClass.landmarks && charpstarVTO.glassClass.faceOccluder) {
charpstarVTO.glassClass.updateFaceOccluder(
charpstarVTO.glassClass.faceOccluder,
charpstarVTO.glassClass.landmarks
);
}
// render scene
this.renderer.render(this.scene, this.camera);
this.rendererVideo.render(this.videoScene, this.camera);
}
resize(videoWidth, videoHeight) {
this.videoWidth = videoWidth;
this.videoHeight = videoHeight;
}
onLandmarks(image, landmarks) {
if (image && landmarks) {
this.videoBg.setImage(image);
charpstarVTO.glassClass.updateLandmarks(landmarks);
}
}
}
class VideoBackground {
constructor(scene, width, height) {
this.scene = scene;
this.image = null;
this.plane = null;
this.width = width;
this.height = height;
this.imageUpdated = false;
this.sizeUpdated = false;
}
updateDimensions(width, height) {
this.width = width;
this.height = height;
this.sizeUpdated = true;
}
setImage(image) {
this.image = image;
this.imageUpdated = true;
}
createNewPlane() {
const geometry = this.createGeometry();
const material = this.createMaterial();
this.plane = new THREE.Mesh(geometry, material);
this.updateDimensions();