Skip to content

MeshStandardMaterial

Video Lecture

MeshStandardMaterial MeshStandardMaterial

Description

In this lecture we experiment with the Three.js MeshStandardMaterial.

It uses the Physically Based Rendering (PBR) model.

It creates a more realistic appearance than the MeshLambertMaterial or the MeshPhongMaterial. It is also more computationally expensive.

<>

Lesson Script

./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
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 'dat.gui'

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

const light = new THREE.PointLight(0xffffff, 1000)
light.position.set(10, 10, 10)
scene.add(light)

const camera = new THREE.PerspectiveCamera(
    75,
    window.innerWidth / window.innerHeight,
    0.1,
    1000
)
camera.position.z = 3

const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)

new OrbitControls(camera, renderer.domElement)

const boxGeometry = new THREE.BoxGeometry()
const sphereGeometry = new THREE.SphereGeometry()
const icosahedronGeometry = new THREE.IcosahedronGeometry(1, 0)
const planeGeometry = new THREE.PlaneGeometry()
const torusKnotGeometry = new THREE.TorusKnotGeometry()

const material = new THREE.MeshStandardMaterial()

// 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()
//     }
// )

const cube = new THREE.Mesh(boxGeometry, material)
cube.position.x = 5
scene.add(cube)

const sphere = new THREE.Mesh(sphereGeometry, material)
sphere.position.x = 3
scene.add(sphere)

const icosahedron = new THREE.Mesh(icosahedronGeometry, material)
icosahedron.position.x = 0
scene.add(icosahedron)

const plane = new THREE.Mesh(planeGeometry, material)
plane.position.x = -2
scene.add(plane)

const torusKnot = new THREE.Mesh(torusKnotGeometry, material)
torusKnot.position.x = -5
scene.add(torusKnot)

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

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

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')
    .onChange(() => (material.needsUpdate = true))
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 meshStandardMaterialFolder = gui.addFolder('THREE.MeshStandardMaterial')

meshStandardMaterialFolder.addColor(data, 'color').onChange(() => {
    material.color.setHex(Number(data.color.toString().replace('#', '0x')))
})
meshStandardMaterialFolder.addColor(data, 'emissive').onChange(() => {
    material.emissive.setHex(
        Number(data.emissive.toString().replace('#', '0x'))
    )
})
meshStandardMaterialFolder.add(material, 'wireframe')
meshStandardMaterialFolder
    .add(material, 'flatShading')
    .onChange(() => updateMaterial())
//meshStandardMaterialFolder.add(material, 'roughness', 0, 1)
//meshStandardMaterialFolder.add(material, 'metalness', 0, 1)
meshStandardMaterialFolder.open()

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

function animate() {
    requestAnimationFrame(animate)

    render()

    stats.update()
}

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

animate()

Physically Based Rendering

MeshStandardMaterial

Comments