forked from mrdoob/three.js
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathwebgl_multiple_canvases_complex.html
265 lines (187 loc) · 6.91 KB
/
webgl_multiple_canvases_complex.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>
<title>three.js webgl - multiple canvases - complex</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 {
color: #808080;
font-family: Monospace;
font-size: 13px;
text-align: center;
background-color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
#canvas1, #canvas2, #canvas3 {
position: relative;
display: block;
border: 1px solid red;
}
#canvas1 {
width: 300px;
height: 200px;
}
#canvas2 {
width: 400px;
height: 100px;
left: 150px;
}
#canvas3 {
width: 200px;
height: 300px;
left: 75px;
}
a {
color: #0080ff;
}
</style>
</head>
<body>
<div id="container">
<canvas id="canvas1"></canvas>
<canvas id="canvas2"></canvas>
<canvas id="canvas3"></canvas>
</div>
<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - multiple canvases - complex</div>
<script src="../build/three.js"></script>
<script src="js/WebGL.js"></script>
<script>
if ( WEBGL.isWebGLAvailable() === false ) {
document.body.appendChild( WEBGL.getWebGLErrorMessage() );
}
var views = [];
var scene, renderer;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
//
function View( canvas, fullWidth, fullHeight, viewX, viewY, viewWidth, viewHeight ) {
canvas.width = viewWidth * window.devicePixelRatio;
canvas.height = viewHeight * window.devicePixelRatio;
var context = canvas.getContext( '2d' );
var camera = new THREE.PerspectiveCamera( 20, viewWidth / viewHeight, 1, 10000 );
camera.setViewOffset( fullWidth, fullHeight, viewX, viewY, viewWidth, viewHeight );
camera.position.z = 1800;
this.render = function () {
camera.position.x += ( mouseX - camera.position.x ) * 0.05;
camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
camera.lookAt( scene.position );
renderer.setViewport( 0, 0, viewWidth, viewHeight );
renderer.render( scene, camera );
context.drawImage( renderer.domElement, 0, 0 );
};
}
//
function init() {
var canvas1 = document.getElementById( 'canvas1' );
var canvas2 = document.getElementById( 'canvas2' );
var canvas3 = document.getElementById( 'canvas3' );
var fullWidth = 550;
var fullHeight = 600;
views.push( new View( canvas1, fullWidth, fullHeight, 0, 0, canvas1.clientWidth, canvas1.clientHeight ) );
views.push( new View( canvas2, fullWidth, fullHeight, 150, 200, canvas2.clientWidth, canvas2.clientHeight ) );
views.push( new View( canvas3, fullWidth, fullHeight, 75, 300, canvas3.clientWidth, canvas3.clientHeight ) );
//
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xffffff );
var light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 0, 1 ).normalize();
scene.add( light );
// shadow
var canvas = document.createElement( 'canvas' );
canvas.width = 128;
canvas.height = 128;
var context = canvas.getContext( '2d' );
var gradient = context.createRadialGradient( canvas.width / 2, canvas.height / 2, 0, canvas.width / 2, canvas.height / 2, canvas.width / 2 );
gradient.addColorStop( 0.1, 'rgba(210,210,210,1)' );
gradient.addColorStop( 1, 'rgba(255,255,255,1)' );
context.fillStyle = gradient;
context.fillRect( 0, 0, canvas.width, canvas.height );
var shadowTexture = new THREE.CanvasTexture( canvas );
var shadowMaterial = new THREE.MeshBasicMaterial( { map: shadowTexture } );
var shadowGeo = new THREE.PlaneBufferGeometry( 300, 300, 1, 1 );
var shadowMesh;
shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
shadowMesh.position.y = - 250;
shadowMesh.rotation.x = - Math.PI / 2;
scene.add( shadowMesh );
shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
shadowMesh.position.x = - 400;
shadowMesh.position.y = - 250;
shadowMesh.rotation.x = - Math.PI / 2;
scene.add( shadowMesh );
shadowMesh = new THREE.Mesh( shadowGeo, shadowMaterial );
shadowMesh.position.x = 400;
shadowMesh.position.y = - 250;
shadowMesh.rotation.x = - Math.PI / 2;
scene.add( shadowMesh );
var radius = 200;
var geometry1 = new THREE.IcosahedronBufferGeometry( radius, 1 );
var count = geometry1.attributes.position.count;
geometry1.addAttribute( 'color', new THREE.BufferAttribute( new Float32Array( count * 3 ), 3 ) );
var geometry2 = geometry1.clone();
var geometry3 = geometry1.clone();
var color = new THREE.Color();
var positions1 = geometry1.attributes.position;
var positions2 = geometry2.attributes.position;
var positions3 = geometry3.attributes.position;
var colors1 = geometry1.attributes.color;
var colors2 = geometry2.attributes.color;
var colors3 = geometry3.attributes.color;
for ( var i = 0; i < count; i ++ ) {
color.setHSL( ( positions1.getY( i ) / radius + 1 ) / 2, 1.0, 0.5 );
colors1.setXYZ( i, color.r, color.g, color.b );
color.setHSL( 0, ( positions2.getY( i ) / radius + 1 ) / 2, 0.5 );
colors2.setXYZ( i, color.r, color.g, color.b );
color.setRGB( 1, 0.8 - ( positions3.getY( i ) / radius + 1 ) / 2, 0 );
colors3.setXYZ( i, color.r, color.g, color.b );
}
var material = new THREE.MeshPhongMaterial( {
color: 0xffffff,
flatShading: true,
vertexColors: THREE.VertexColors,
shininess: 0
} );
var wireframeMaterial = new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, transparent: true } );
var mesh = new THREE.Mesh( geometry1, material );
var wireframe = new THREE.Mesh( geometry1, wireframeMaterial );
mesh.add( wireframe );
mesh.position.x = - 400;
mesh.rotation.x = - 1.87;
scene.add( mesh );
var mesh = new THREE.Mesh( geometry2, material );
var wireframe = new THREE.Mesh( geometry2, wireframeMaterial );
mesh.add( wireframe );
mesh.position.x = 400;
scene.add( mesh );
var mesh = new THREE.Mesh( geometry3, material );
var wireframe = new THREE.Mesh( geometry3, wireframeMaterial );
mesh.add( wireframe );
scene.add( mesh );
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( fullWidth, fullHeight );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
}
function animate() {
for ( var i = 0; i < views.length; ++ i ) {
views[ i ].render();
}
requestAnimationFrame( animate );
}
</script>
</body>
</html>