Skip to content


 Zabbix
 Grafana
 Prometheus
 Threejs and TypeScript
 SocketIO and TypeScript
 Blender Topological Earth
 Sweet Home 3D
 Design Patterns Python
 Design Patterns TypeScript
   
 Course Coupon Codes
Three.js and TypeScript
Kindle Edition
$9.99 $14.99 Paperback 
$29.99 $34.99




Design Patterns in TypeScript
Kindle Edition
$9.99 $14.99 Paperback
$19.99 $24.99




Design Patterns in Python
Kindle Edition
$9.99 $14.99 Paperback
$19.99 $24.99




Glass Transmission

The THREE.MeshPhysicalMaterial simulates glass very well.

This example demonstrates overriding a material that was set in an exported glTF, with a customised THREE.MeshPhysicalMaterial.

Code

./src/client/client.ts

  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
import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader'
import Stats from 'three/examples/jsm/libs/stats.module'
import { GUI } from 'three/examples/jsm/libs/dat.gui.module'

const scene = new THREE.Scene()
scene.add(new THREE.AxesHelper(5))

const camera = new THREE.PerspectiveCamera(
    75,
    window.innerWidth / window.innerHeight,
    0.1,
    1000
)
camera.position.set(-0.6, 0.45, 2)

const renderer = new THREE.WebGLRenderer()
renderer.physicallyCorrectLights = true
renderer.shadowMap.enabled = true
// renderer.outputEncoding = THREE.sRGBEncoding
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)

const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true

const material = new THREE.MeshPhysicalMaterial({})
material.thickness = 3.0
material.roughness = 0.9
material.clearcoat = 0.1
material.clearcoatRoughness = 0
material.transmission = 0.99
material.ior = 1.25
material.envMapIntensity = 25

const texture = new THREE.TextureLoader().load('img/grid.png')
material.map = texture
const pmremGenerator = new THREE.PMREMGenerator(renderer)
const envTexture = new THREE.CubeTextureLoader().load(
    [
        'img/px_50.png',
        'img/nx_50.png',
        'img/py_50.png',
        'img/ny_50.png',
        'img/pz_50.png',
        'img/nz_50.png',
    ],
    () => {
        material.envMap = pmremGenerator.fromCubemap(envTexture).texture
        pmremGenerator.dispose()
    }
)

let monkeyMesh: THREE.Mesh

const loader = new GLTFLoader()
loader.load(
    'models/monkey.glb',
    function (gltf) {
        gltf.scene.traverse(function (child) {
            if ((child as THREE.Mesh).isMesh) {
                const m = child as THREE.Mesh
                if (m.name === 'Suzanne') {
                    m.material = material
                    monkeyMesh = m
                }
                m.receiveShadow = true
                m.castShadow = true
            }
            if ((child as THREE.Light).isLight) {
                const l = child as THREE.Light
                l.castShadow = true
                l.shadow.bias = -0.001
                l.shadow.mapSize.width = 2048
                l.shadow.mapSize.height = 2048
            }
        })
        scene.add(gltf.scene)
    },
    (xhr) => {
        console.log((xhr.loaded / xhr.total) * 100 + '% loaded')
    },
    (error) => {
        console.log(error)
    }
)

window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
    camera.aspect = window.innerWidth / window.innerHeight
    camera.updateProjectionMatrix()
    renderer.setSize(window.innerWidth, window.innerHeight)
    render()
}

const options = {
    side: {
        FrontSide: THREE.FrontSide,
        BackSide: THREE.BackSide,
        DoubleSide: THREE.DoubleSide,
    },
}
const gui = new GUI()
const materialFolder = gui.addFolder('THREE.Material')
materialFolder.add(material, 'transparent')
materialFolder.add(material, 'opacity', 0, 1, 0.01)
materialFolder.add(material, 'depthTest')
materialFolder.add(material, 'depthWrite')
materialFolder
    .add(material, 'alphaTest', 0, 1, 0.01)
    .onChange(() => updateMaterial())
materialFolder.add(material, 'visible')
materialFolder
    .add(material, 'side', options.side)
    .onChange(() => updateMaterial())
//materialFolder.open()

const data = {
    color: material.color.getHex(),
    emissive: material.emissive.getHex(),
}

const meshPhysicalMaterialFolder = gui.addFolder('THREE.MeshPhysicalMaterial')

meshPhysicalMaterialFolder.addColor(data, 'color').onChange(() => {
    material.color.setHex(Number(data.color.toString().replace('#', '0x')))
})
meshPhysicalMaterialFolder.addColor(data, 'emissive').onChange(() => {
    material.emissive.setHex(
        Number(data.emissive.toString().replace('#', '0x'))
    )
})

meshPhysicalMaterialFolder.add(material, 'wireframe')
meshPhysicalMaterialFolder
    .add(material, 'flatShading')
    .onChange(() => updateMaterial())
meshPhysicalMaterialFolder.add(material, 'roughness', 0, 1)
meshPhysicalMaterialFolder.add(material, 'metalness', 0, 1)
meshPhysicalMaterialFolder.add(material, 'clearcoat', 0, 1, 0.01)
meshPhysicalMaterialFolder.add(material, 'clearcoatRoughness', 0, 1, 0.01)
meshPhysicalMaterialFolder.add(material, 'transmission', 0, 1, 0.01)
meshPhysicalMaterialFolder.add(material, 'ior', 1.0, 2.333)
meshPhysicalMaterialFolder.add(material, 'thickness', 0, 10.0)
meshPhysicalMaterialFolder.open()

function updateMaterial() {
    material.side = Number(material.side)
    material.needsUpdate = true
}

const stats = Stats()
document.body.appendChild(stats.dom)

function animate() {
    requestAnimationFrame(animate)

    controls.update()

    monkeyMesh.rotation.y += 0.01

    render()

    stats.update()
}

function render() {
    renderer.render(scene, camera)
}

animate()