MeshToonMaterial

Video Lecture

MeshToonMaterial MeshToonMaterial MeshToonMaterial MeshToonMaterial

Description

Toon shading or Cel shading is a type of non-photorealistic rendering technique designed to make 3D computer graphics appear more cartoonish by using less shading color instead of a smooth gradient effect.

Start 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
// 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 scene: THREE.Scene = new THREE.Scene()

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

const light = new THREE.PointLight(0xffffff, 1);
light.position.set(5, 5, 5);
scene.add(light);

const camera: THREE.PerspectiveCamera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 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)

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

const threeTone = new THREE.TextureLoader().load("img/threeTone.jpg")
threeTone.minFilter = THREE.NearestFilter;
threeTone.magFilter = THREE.NearestFilter;

const fourTone = new THREE.TextureLoader().load("img/fourTone.jpg")
fourTone.minFilter = THREE.NearestFilter;
fourTone.magFilter = THREE.NearestFilter;

const fiveTone = new THREE.TextureLoader().load("img/fiveTone.jpg")
fiveTone.minFilter = THREE.NearestFilter;
fiveTone.magFilter = THREE.NearestFilter;

const material: THREE.MeshToonMaterial = new THREE.MeshToonMaterial()

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

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

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

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

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

camera.position.z = 5

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

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

var options = {
    side: {
        "FrontSide": THREE.FrontSide,
        "BackSide": THREE.BackSide,
        "DoubleSide": THREE.DoubleSide,
    },
    gradientMap: {
        "Default": null,
        "threeTone": "threeTone",
        "fourTone": "fourTone",
        "fiveTone": "fiveTone"
    }
}
const gui = new GUI()

var data = {
    lightColor : light.color.getHex(),
    color: material.color.getHex(),
    gradientMap: "fiveTone"
}
material.gradientMap = fiveTone

const lightFolder = gui.addFolder('THREE.Light')
lightFolder.addColor(data, 'lightColor').onChange(() => { light.color.setHex(Number(data.lightColor.toString().replace('#', '0x'))) })
lightFolder.add(light, "intensity", 0, 4)

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()

var meshToonMaterialFolder = gui.addFolder('THREE.MeshToonMaterial')
meshToonMaterialFolder.addColor(data, 'color').onChange(() => { material.color.setHex(Number(data.color.toString().replace('#', '0x'))) })
meshToonMaterialFolder.add(material, 'flatShading').onChange(() => updateMaterial())
meshToonMaterialFolder.add(data, 'gradientMap', options.gradientMap).onChange(() => updateMaterial())
meshToonMaterialFolder.open()

function updateMaterial() {
    material.side = Number(material.side)
    material.gradientMap = eval(data.gradientMap as any)
    material.needsUpdate = true
}

var animate = function () {
    requestAnimationFrame(animate)

    icosahedron.rotation.y += .005
    icosahedron.rotation.x += .005
    cube.rotation.y += .005
    cube.rotation.x += .005
    torusKnot.rotation.y += .005
    torusKnot.rotation.x += .005
    sphere.rotation.y += .005
    sphere.rotation.x += .005
    plane.rotation.y += .005
    plane.rotation.x += .005

    render()

    stats.update()
};

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

Cel shading