-
Notifications
You must be signed in to change notification settings - Fork 0
/
05-6聚光灯.html
235 lines (163 loc) · 5.22 KB
/
05-6聚光灯.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
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - geometry - cube</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="http://127.0.0.1:5502/main.css" />
<style>
html,
body {
margin: 0;
height: 100%;
}
#c {
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script type="importmap">{
"imports": {
"three": "https://threejs.org/build/three.module.js",
"three/addons/": "https://threejs.org/examples/jsm/"
}
}</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
function main() {
const canvas = document.querySelector( '#c' );
const renderer = new THREE.WebGLRenderer( { antialias: true, canvas } );
const fov = 45;
const aspect = 2; // the canvas default
const near = 0.1;
const far = 100;
const camera = new THREE.PerspectiveCamera( fov, aspect, near, far );
camera.position.set( 0, 10, 20 );
const controls = new OrbitControls( camera, canvas );
controls.target.set( 0, 5, 0 );
controls.update();
const scene = new THREE.Scene();
scene.background = new THREE.Color( 'black' );
{
const planeSize = 40;
const loader = new THREE.TextureLoader();
const texture = loader.load( 'https://threejs.org/manual/examples/resources/images/checker.png' );
texture.wrapS = THREE.RepeatWrapping;
texture.wrapT = THREE.RepeatWrapping;
texture.magFilter = THREE.NearestFilter;
texture.colorSpace = THREE.SRGBColorSpace;
const repeats = planeSize / 2;
texture.repeat.set( repeats, repeats );
const planeGeo = new THREE.PlaneGeometry( planeSize, planeSize );
const planeMat = new THREE.MeshPhongMaterial( {
map: texture,
side: THREE.DoubleSide,
} );
const mesh = new THREE.Mesh( planeGeo, planeMat );
mesh.rotation.x = Math.PI * - .5;
scene.add( mesh );
}
{
const cubeSize = 4;
const cubeGeo = new THREE.BoxGeometry( cubeSize, cubeSize, cubeSize );
const cubeMat = new THREE.MeshPhongMaterial( { color: '#8AC' } );
const mesh = new THREE.Mesh( cubeGeo, cubeMat );
mesh.position.set( cubeSize + 1, cubeSize / 2, 0 );
scene.add( mesh );
}
{
const sphereRadius = 3;
const sphereWidthDivisions = 32;
const sphereHeightDivisions = 16;
const sphereGeo = new THREE.SphereGeometry( sphereRadius, sphereWidthDivisions, sphereHeightDivisions );
const sphereMat = new THREE.MeshPhongMaterial( { color: '#CA8' } );
const mesh = new THREE.Mesh( sphereGeo, sphereMat );
mesh.position.set( - sphereRadius - 1, sphereRadius + 2, 0 );
scene.add( mesh );
}
class ColorGUIHelper {
constructor( object, prop ) {
this.object = object;
this.prop = prop;
}
get value() {
return `#${this.object[ this.prop ].getHexString()}`;
}
set value( hexString ) {
this.object[ this.prop ].set( hexString );
}
}
class DegRadHelper {
constructor( obj, prop ) {
this.obj = obj;
this.prop = prop;
}
get value() {
return THREE.MathUtils.radToDeg( this.obj[ this.prop ] );
}
set value( v ) {
this.obj[ this.prop ] = THREE.MathUtils.degToRad( v );
}
}
function makeXYZGUI( gui, vector3, name, onChangeFn ) {
const folder = gui.addFolder( name );
folder.add( vector3, 'x', - 10, 10 ).onChange( onChangeFn );
folder.add( vector3, 'y', 0, 10 ).onChange( onChangeFn );
folder.add( vector3, 'z', - 10, 10 ).onChange( onChangeFn );
folder.open();
}
{
const color = 0xFFFFFF;
const intensity = 150;
const light = new THREE.SpotLight( color, intensity );
light.position.set( 0, 10, 0 );
light.target.position.set( - 5, 0, 0 );
scene.add( light );
scene.add( light.target );
const helper = new THREE.SpotLightHelper( light );
scene.add( helper );
function updateLight() {
light.target.updateMatrixWorld();
helper.update();
}
updateLight();
const gui = new GUI();
gui.addColor( new ColorGUIHelper( light, 'color' ), 'value' ).name( 'color' );
gui.add( light, 'intensity', 0, 250, 1 );
gui.add( light, 'distance', 0, 40 ).onChange( updateLight );
gui.add( new DegRadHelper( light, 'angle' ), 'value', 0, 90 ).name( 'angle' ).onChange( updateLight );
gui.add( light, 'penumbra', 0, 1, 0.01 );
makeXYZGUI( gui, light.position, 'position', updateLight );
makeXYZGUI( gui, light.target.position, 'target', updateLight );
}
function resizeRendererToDisplaySize( renderer ) {
const canvas = renderer.domElement;
const width = canvas.clientWidth;
const height = canvas.clientHeight;
const needResize = canvas.width !== width || canvas.height !== height;
if ( needResize ) {
renderer.setSize( width, height, false );
}
return needResize;
}
function render() {
if ( resizeRendererToDisplaySize( renderer ) ) {
const canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix();
}
renderer.render( scene, camera );
requestAnimationFrame( render );
}
requestAnimationFrame( render );
}
main();
</script>
</body>
</html>