forked from mrdoob/three.js
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathwebgl_kinect.html
265 lines (172 loc) · 6.03 KB
/
webgl_kinect.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>three.js - kinect</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #000000;
margin: 0px;
overflow: hidden;
}
#info {
color: #ffffff;
font-family: Monospace;
font-size: 13px;
text-align: center;
font-weight: bold;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: #0040ff;
}
</style>
</head>
<body>
<script src="../build/three.min.js"></script>
<script src='js/libs/DAT.GUI.min.js'></script>
<script src="js/Detector.js"></script>
<script src="js/libs/stats.min.js"></script>
<script id="vs" type="x-shader/x-vertex">
uniform sampler2D map;
uniform float width;
uniform float height;
uniform float nearClipping, farClipping;
uniform float pointSize;
uniform float zOffset;
varying vec2 vUv;
const float XtoZ = 1.11146; // tan( 1.0144686 / 2.0 ) * 2.0;
const float YtoZ = 0.83359; // tan( 0.7898090 / 2.0 ) * 2.0;
void main() {
vUv = vec2( position.x / width, position.y / height );
vec4 color = texture2D( map, vUv );
float depth = ( color.r + color.g + color.b ) / 3.0;
// Projection code by @kcmic
float z = ( 1.0 - depth ) * (farClipping - nearClipping) + nearClipping;
vec4 pos = vec4(
( position.x / width - 0.5 ) * z * XtoZ,
( position.y / height - 0.5 ) * z * YtoZ,
- z + zOffset,
1.0);
gl_PointSize = pointSize;
gl_Position = projectionMatrix * modelViewMatrix * pos;
}
</script>
<script id="fs" type="x-shader/x-fragment">
uniform sampler2D map;
varying vec2 vUv;
void main() {
vec4 color = texture2D( map, vUv );
gl_FragColor = vec4( color.r, color.g, color.b, smoothstep( 8000.0, -8000.0, gl_FragCoord.z / gl_FragCoord.w ) );
}
</script>
<script>
var container;
var scene, camera, light, renderer;
var geometry, cube, mesh, material;
var mouse, center;
var stats;
var video, texture;
if ( Detector.webgl ) {
init();
animate();
} else {
document.body.appendChild( Detector.getWebGLErrorMessage() );
}
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
var info = document.createElement( 'div' );
info.id = 'info';
info.innerHTML = '<a href="http://threejs.org" target="_blank">three.js</a> - kinect';
document.body.appendChild( info );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
// container.appendChild( stats.domElement );
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.set( 0, 0, 500 );
scene = new THREE.Scene();
center = new THREE.Vector3();
center.z = - 1000;
video = document.createElement( 'video' );
video.addEventListener( 'loadedmetadata', function ( event ) {
texture = new THREE.Texture( video );
var width = 640, height = 480;
var nearClipping = 850/*850*/, farClipping = 4000/*4000*/;
geometry = new THREE.Geometry();
for ( var i = 0, l = width * height; i < l; i ++ ) {
var vertex = new THREE.Vector3();
vertex.x = ( i % width );
vertex.y = Math.floor( i / width );
geometry.vertices.push( vertex );
}
material = new THREE.ShaderMaterial( {
uniforms: {
"map": { type: "t", value: texture },
"width": { type: "f", value: width },
"height": { type: "f", value: height },
"nearClipping": { type: "f", value: nearClipping },
"farClipping": { type: "f", value: farClipping },
"pointSize": { type: "f", value: 2 },
"zOffset": { type: "f", value: 1000 }
},
vertexShader: document.getElementById( 'vs' ).textContent,
fragmentShader: document.getElementById( 'fs' ).textContent,
depthWrite: false
} );
mesh = new THREE.ParticleSystem( geometry, material );
mesh.position.x = 0;
mesh.position.y = 0;
scene.add( mesh );
setInterval( function () {
if ( video.readyState === video.HAVE_ENOUGH_DATA ) {
texture.needsUpdate = true;
}
}, 1000 / 30 );
var gui = new DAT.GUI();
gui.add( material.uniforms.nearClipping, 'value' ).name( 'nearClipping' ).min( 1 ).max( 10000 ).step( 1.0 );
gui.add( material.uniforms.farClipping, 'value' ).name( 'farClipping' ).min( 1 ).max( 10000 ).step( 1.0 );
gui.add( material.uniforms.pointSize, 'value' ).name( 'pointSize' ).min( 1 ).max( 10 ).step( 1.0 );
gui.add( material.uniforms.zOffset, 'value' ).name( 'zOffset' ).min( 0 ).max( 4000 ).step( 1.0 );
gui.close();
}, false );
video.loop = true;
video.src = 'textures/kinect.webm';
video.play();
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
mouse = new THREE.Vector3( 0, 0, 1 );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove( event ) {
mouse.x = ( event.clientX - window.innerWidth / 2 ) * 8;
mouse.y = ( event.clientY - window.innerHeight / 2 ) * 8;
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
camera.position.x += ( mouse.x - camera.position.x ) * 0.05;
camera.position.y += ( - mouse.y - camera.position.y ) * 0.05;
camera.lookAt( center );
renderer.render( scene, camera );
}
</script>
</body>
</html>