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add threejs + wasm worker + gltf model #48

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141 changes: 141 additions & 0 deletions examples/nft_improved_worker/threejs_wasm_worker_gltf.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>NFT marker example with a WebWorker, WASM and with Three.js</title>
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=0.5, maximum-scale=1">
<link rel="stylesheet" href="../css/video-style.css">
</head>
<body class="loading">
<div id="loading" >
<img src="../Data/logo.gif"/>
<span class="loading-text">Loading, please wait</span>
</div>
<!--
==================
STATS
==================
-->

<div id="stats" class="ui stats">

<div id="stats1" class="stats-item">
<p class="stats-item-title">
Main
</p>
</div>

<div id="stats2" class="stats-item">
<p class="stats-item-title">
Worker
</p>
</div>

</div>

<!--
==================
CAMERA VIDEO & CANVAS
==================
-->

<div id="app">
<video
loop
autoplay
muted
playsinline
id="video">
</video>

<canvas id="canvas"></canvas>
</div>

<a
href="https://raw.githubusercontent.com/artoolkit/artoolkit5/master/doc/Marker%20images/pinball.jpg"
class="ui marker"
target="_blank">
🖼 Marker Image
</a>

<script src="../js/third_party/three.js/stats.min.js"></script>
<script src="../js/third_party/three.js/three.min.js"></script>
<script src="../js/third_party/three.js/GLTFLoader.js"></script>
<script src="threejs_wasm_worker_gltf.js"></script>

<script>

/**
* STATS
*/
var statsMain = new Stats();
statsMain.showPanel( 0 ); // 0: fps, 1: ms, 2: mb, 3+: custom
document.getElementById( 'stats1' ).appendChild( statsMain.dom );

var statsWorker = new Stats();
statsWorker.showPanel( 0 ); // 0: fps, 1: ms, 2: mb, 3+: custom
document.getElementById( 'stats2' ).appendChild( statsWorker.dom );

/**
* APP / ELEMENTS
*/
var container = document.getElementById( 'app' );
var video = document.getElementById( 'video' );
var canvas = document.getElementById( 'canvas' );

/**
* APP / VIDEO STREAM
*/

if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
var hint = {
audio: false,
video: true
};
if( window.innerWidth < 800 ) {
var width = ( window.innerWidth < window.innerHeight ) ? 240 : 360;
var height = ( window.innerWidth < window.innerHeight ) ? 360 : 240;

var aspectRatio = window.innerWidth / window.innerHeight;

console.log( width, height );

hint = {
audio: false,
video: {
facingMode: 'environment',
width: { min: width, max: width }
},
};

console.log( hint );
}

navigator.mediaDevices.getUserMedia( hint ).then( function( stream ) {
video.srcObject = stream;
video.addEventListener( 'loadedmetadata', function() {
video.play();

console.log( 'video', video, video.videoWidth, video.videoHeight );

start(
container,
markers['pinball'],
video,
video.videoWidth,
video.videoHeight,
canvas,
function() {
statsMain.update()
},
function() {
statsWorker.update();
},
null
);
} );
} );
}
</script>
</body>
</html>
241 changes: 241 additions & 0 deletions examples/nft_improved_worker/threejs_wasm_worker_gltf.js
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var model;
var clock = new THREE.Clock();
var mixers = [];

function isMobile() {
return /Android|mobile|iPad|iPhone/i.test(navigator.userAgent);
}

var interpolationFactor = 24;

var trackedMatrix = {
// for interpolation
delta: [
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0
],
interpolated: [
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0
]
}

var markers = {
"pinball": {
width: 1637,
height: 2048,
dpi: 250,
url: "../DataNFT/pinball",
},
};

var setMatrix = function (matrix, value) {
var array = [];
for (var key in value) {
array[key] = value[key];
}
if (typeof matrix.elements.set === "function") {
matrix.elements.set(array);
} else {
matrix.elements = [].slice.call(array);
}
};

//var worker;
function start(container, marker, video, input_width, input_height, canvas_draw, render_update, track_update) {
worker = new Worker('wasm_worker/artoolkit.wasm_worker.js');
worker.onmessage = function(ev) {
start2(container, marker, video, input_width, input_height, canvas_draw, render_update, track_update);
}
}

function start2(container, marker, video, input_width, input_height, canvas_draw, render_update, track_update) {
var vw, vh;
var sw, sh;
var pscale, sscale;
var w, h;
var pw, ph;
var ox, oy;
var camera_para = './../../Data/camera_para-iPhone 5 rear 640x480 1.0m.dat'

var canvas_process = document.createElement('canvas');
var context_process = canvas_process.getContext('2d');

var renderer = new THREE.WebGLRenderer({canvas: canvas_draw, alpha: true, antialias: true});
renderer.setPixelRatio(window.devicePixelRatio);

var scene = new THREE.Scene();

var camera = new THREE.Camera();
camera.matrixAutoUpdate = false;

scene.add(camera);

var light = new THREE.AmbientLight(0xffffff);
scene.add(light);

var root = new THREE.Object3D();
scene.add(root);

root.matrixAutoUpdate = false;
/* Load Model */
var threeGLTFLoader = new THREE.GLTFLoader();

threeGLTFLoader.load("../Data/models/Flamingo.glb", function (gltf) {
model = gltf.scene.children[0];
model.position.z = 0;
model.position.x = 100;
model.position.y = 100;

var animation = gltf.animations[0];
var mixer = new THREE.AnimationMixer(model);
mixers.push(mixer);
var action = mixer.clipAction(animation);
action.play();

root.matrixAutoUpdate = false;
root.add(model);
}
);

var load = function() {
vw = input_width;
vh = input_height;

pscale = 320 / Math.max(vw, vh / 3 * 4);
sscale = isMobile() ? window.outerWidth / input_width : 1;

sw = vw * sscale;
sh = vh * sscale;
video.style.width = sw + "px";
video.style.height = sh + "px";
container.style.width = sw + "px";
container.style.height = sh + "px";
canvas_draw.style.clientWidth = sw + "px";
canvas_draw.style.clientHeight = sh + "px";
canvas_draw.width = sw;
canvas_draw.height = sh;
w = vw * pscale;
h = vh * pscale;
pw = Math.max(w, h / 3 * 4);
ph = Math.max(h, w / 4 * 3);
ox = (pw - w) / 2;
oy = (ph - h) / 2;
canvas_process.style.clientWidth = pw + "px";
canvas_process.style.clientHeight = ph + "px";
canvas_process.width = pw;
canvas_process.height = ph;

renderer.setSize(sw, sh);

worker.postMessage({type: "load", pw: pw, ph: ph, camera_para: camera_para, marker: '../' + marker.url});

worker.onmessage = function(ev) {
var msg = ev.data;
switch (msg.type) {
case "loaded": {
var proj = JSON.parse(msg.proj);
var ratioW = pw / w;
var ratioH = ph / h;
proj[0] *= ratioW;
proj[4] *= ratioW;
proj[8] *= ratioW;
proj[12] *= ratioW;
proj[1] *= ratioH;
proj[5] *= ratioH;
proj[9] *= ratioH;
proj[13] *= ratioH;
setMatrix(camera.projectionMatrix, proj);
break;
}

case "endLoading": {
if (msg.end == true)
// removing loader page if present
document.body.classList.remove("loading");
document.getElementById("loading").remove();
break;
}

case "found": {
found(msg);
break;
}

case "not found": {
found(null);
break;
}
}

track_update();
process();
};
};

var world;

var found = function(msg) {
if (!msg) {
world = null;
} else {
world = JSON.parse(msg.matrixGL_RH);
}
};

var lasttime = Date.now();
var time = 0;

var draw = function() {
render_update();
var now = Date.now();
var dt = now - lasttime;
time += dt;
lasttime = now;

if (!world) {
root.visible = false;
} else {
root.visible = true;
// interpolate matrix
for (var i = 0; i < 16; i++) {
trackedMatrix.delta[i] = world[i] - trackedMatrix.interpolated[i];
trackedMatrix.interpolated[i] =
trackedMatrix.interpolated[i] +
trackedMatrix.delta[i] / interpolationFactor;
}

// set matrix of 'root' by detected 'world' matrix
setMatrix(root.matrix, trackedMatrix.interpolated);
}
renderer.render(scene, camera);
};

function process() {
context_process.fillStyle = "black";
context_process.fillRect(0, 0, pw, ph);
context_process.drawImage(video, 0, 0, vw, vh, ox, oy, w, h);

var imageData = context_process.getImageData(0, 0, pw, ph);
worker.postMessage({ type: "process", imagedata: imageData }, [
imageData.data.buffer
]);
}
var tick = function() {
draw();
requestAnimationFrame(tick);
if (mixers.length > 0) {
for (var i = 0; i < mixers.length; i++) {
mixers[i].update(clock.getDelta());
}
}
};

load();
tick();
process();
}