forked from mrdoob/three.js
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathwebgpu_instance_mesh.html
166 lines (104 loc) · 3.84 KB
/
webgpu_instance_mesh.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
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js - WebGPU - Instance Mesh</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - WebGPU - Instance Mesh
</div>
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/",
"three/nodes": "./jsm/nodes/Nodes.js"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/libs/stats.module.js';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
import { mix, range, normalWorld, oscSine, timerLocal } from 'three/nodes';
import WebGPU from 'three/addons/capabilities/WebGPU.js';
import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
let camera, scene, renderer, stats;
let mesh;
const amount = parseInt( window.location.search.slice( 1 ) ) || 10;
const count = Math.pow( amount, 3 );
const dummy = new THREE.Object3D();
init();
function init() {
if ( WebGPU.isAvailable() === false ) {
document.body.appendChild( WebGPU.getErrorMessage() );
throw new Error( 'No WebGPU support' );
}
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 100 );
camera.position.set( amount * 0.9, amount * 0.9, amount * 0.9 );
camera.lookAt( 0, 0, 0 );
scene = new THREE.Scene();
const material = new THREE.MeshBasicMaterial();
// random colors between instances from 0x000000 to 0xFFFFFF
const randomColors = range( new THREE.Color( 0x000000 ), new THREE.Color( 0xFFFFFF ) );
material.colorNode = mix( normalWorld, randomColors, oscSine( timerLocal( .1 ) ) );
const loader = new THREE.BufferGeometryLoader();
loader.load( 'models/json/suzanne_buffergeometry.json', function ( geometry ) {
geometry.computeVertexNormals();
geometry.scale( 0.5, 0.5, 0.5 );
mesh = new THREE.InstancedMesh( geometry, material, count );
scene.add( mesh );
//
const gui = new GUI();
gui.add( mesh, 'count', 0, count );
} );
//
renderer = new WebGPURenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animate );
document.body.appendChild( renderer.domElement );
//
stats = new Stats();
document.body.appendChild( stats.dom );
//
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function animate() {
render();
stats.update();
}
async function render() {
if ( mesh ) {
const time = Date.now() * 0.001;
mesh.rotation.x = Math.sin( time / 4 );
mesh.rotation.y = Math.sin( time / 2 );
let i = 0;
const offset = ( amount - 1 ) / 2;
for ( let x = 0; x < amount; x ++ ) {
for ( let y = 0; y < amount; y ++ ) {
for ( let z = 0; z < amount; z ++ ) {
dummy.position.set( offset - x, offset - y, offset - z );
dummy.rotation.y = ( Math.sin( x / 4 + time ) + Math.sin( y / 4 + time ) + Math.sin( z / 4 + time ) );
dummy.rotation.z = dummy.rotation.y * 2;
dummy.updateMatrix();
mesh.setMatrixAt( i ++, dummy.matrix );
}
}
}
}
await renderer.render( scene, camera );
}
</script>
</body>
</html>