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 | // If using Relative Import References
import * as THREE from '/build/three.module.js'
import { OrbitControls } from '/jsm/controls/OrbitControls'
import Stats from '/jsm/libs/stats.module'
import { GUI } from '/jsm/libs/dat.gui.module'
// If using Module Specifiers
//import * as THREE from 'three'
//import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
//import Stats from 'three/examples/jsm/libs/stats.module'
//import { GUI } from 'three/examples/jsm/libs/dat.gui.module'
const scene1: THREE.Scene = new THREE.Scene()
const scene2: THREE.Scene = new THREE.Scene()
const axesHelper1 = new THREE.AxesHelper(5)
scene1.add(axesHelper1)
const axesHelper2 = new THREE.AxesHelper(5)
scene2.add(axesHelper2)
const camera: THREE.PerspectiveCamera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.01, 1000)
const renderer: THREE.WebGLRenderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
controls.screenSpacePanning = true //so that panning up and down doesn't zoom in/out
const planeGeometry1: THREE.PlaneGeometry = new THREE.PlaneGeometry(2, 25)
const planeGeometry2: THREE.PlaneGeometry = new THREE.PlaneGeometry(2, 25)
//const texture1 = new THREE.TextureLoader().load("img/grid.png")
//const texture2 = new THREE.TextureLoader().load("img/grid.png")
let mipmap = (size: number, color: string) => {
const imageCanvas = document.createElement("canvas") as HTMLCanvasElement
const context = imageCanvas.getContext("2d") as CanvasRenderingContext2D
imageCanvas.width = size
imageCanvas.height = size
context.fillStyle = "#888888"
context.fillRect(0, 0, size, size)
context.fillStyle = color
context.fillRect(0, 0, size / 2, size / 2)
context.fillRect(size / 2, size / 2, size / 2, size / 2)
return context.getImageData(0, 0, size, size)
}
const texture1 = new THREE.CanvasTexture(document.createElement("canvas"));
texture1.mipmaps[0] = mipmap(128, '#ff0000');
texture1.mipmaps[1] = mipmap(64, '#00ff00');
texture1.mipmaps[2] = mipmap(32, '#0000ff');
texture1.mipmaps[3] = mipmap(16, '#880000');
texture1.mipmaps[4] = mipmap(8, '#008800');
texture1.mipmaps[5] = mipmap(4, '#000088');
texture1.mipmaps[6] = mipmap(2, '#008888');
texture1.mipmaps[7] = mipmap(1, '#880088');
texture1.repeat.set(5, 50);
texture1.wrapS = THREE.RepeatWrapping;
texture1.wrapT = THREE.RepeatWrapping;
const texture2 = new THREE.CanvasTexture(document.createElement("canvas"));
texture2.mipmaps[0] = mipmap(128, '#ff0000');
texture2.mipmaps[1] = mipmap(64, '#00ff00');
texture2.mipmaps[2] = mipmap(32, '#0000ff');
texture2.mipmaps[3] = mipmap(16, '#880000');
texture2.mipmaps[4] = mipmap(8, '#008800');
texture2.mipmaps[5] = mipmap(4, '#000088');
texture2.mipmaps[6] = mipmap(2, '#008888');
texture2.mipmaps[7] = mipmap(1, '#880088');
texture2.repeat.set(5, 50);
texture2.wrapS = THREE.RepeatWrapping;
texture2.wrapT = THREE.RepeatWrapping;
const material1: THREE.MeshBasicMaterial = new THREE.MeshBasicMaterial({ map: texture1 })
const material2: THREE.MeshBasicMaterial = new THREE.MeshBasicMaterial({ map: texture2 })
texture2.minFilter = THREE.NearestFilter
texture2.magFilter = THREE.NearestFilter
const plane1: THREE.Mesh = new THREE.Mesh(planeGeometry1, material1)
const plane2: THREE.Mesh = new THREE.Mesh(planeGeometry2, material2)
scene1.add(plane1)
scene2.add(plane2)
camera.position.z = 1
window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
render()
}
var options = {
minFilters: {
"NearestFilter": THREE.NearestFilter,
"NearestMipMapLinearFilter": THREE.NearestMipMapLinearFilter,
"NearestMipMapNearestFilter": THREE.NearestMipMapNearestFilter,
"LinearFilter ": THREE.LinearFilter,
"LinearMipMapLinearFilter (Default)": THREE.LinearMipMapLinearFilter,
"LinearMipmapNearestFilter": THREE.LinearMipmapNearestFilter
},
magFilters: {
"NearestFilter": THREE.NearestFilter,
"LinearFilter (Default)": THREE.LinearFilter,
}
}
const gui = new GUI()
const textureFolder = gui.addFolder('THREE.Texture')
textureFolder.add(texture2, 'minFilter', options.minFilters).onChange(() => updateMinFilter())
textureFolder.add(texture2, 'magFilter', options.magFilters).onChange(() => updateMagFilter())
textureFolder.add(texture2, 'anisotropy', 1, renderer.capabilities.getMaxAnisotropy()).onChange(() => texture2.needsUpdate = true)
textureFolder.open()
function updateMinFilter() {
texture2.minFilter = Number(texture2.minFilter)
texture2.needsUpdate = true
}
function updateMagFilter() {
texture2.magFilter = Number(texture2.magFilter)
texture2.needsUpdate = true
}
const stats = Stats()
document.body.appendChild(stats.dom)
var animate = function () {
requestAnimationFrame(animate)
render()
stats.update()
};
function render() {
renderer.setScissorTest(true);
renderer.setScissor(0, 0, window.innerWidth / 2 - 2, window.innerHeight);
renderer.render(scene1, camera);
renderer.setScissor(window.innerWidth / 2, 0, window.innerWidth / 2 - 2, window.innerHeight);
renderer.render(scene2, camera);
renderer.setScissorTest(false);
}
animate();
|
