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RoughnessMap and MetalnessMap

Video Lecture

Roughness and Metalness Maps Roughness and Metalness Maps Roughness and Metalness Maps

Description

The roughnessMap and metalnessMap are the specularMap equivalents for the MeshStandardMaterial and MeshPhysicalMaterial materials.

Final Script

./src/client/client.ts

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

const light = new THREE.PointLight(0xffffff, 2)
light.position.set(0, 5, 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)

const controls = new OrbitControls(camera, renderer.domElement)
controls.screenSpacePanning = true //so that panning up and down doesn't zoom in/out
//controls.addEventListener('change', render)

const planeGeometry = new THREE.PlaneGeometry(3.6, 1.8)

const material = new THREE.MeshPhysicalMaterial({})

//const texture = new THREE.TextureLoader().load("img/grid.png")
const texture = new THREE.TextureLoader().load('img/worldColour.5400x2700.jpg')
material.map = texture
// 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"])
const envTexture = new THREE.CubeTextureLoader().load([
    'img/px_eso0932a.jpg',
    'img/nx_eso0932a.jpg',
    'img/py_eso0932a.jpg',
    'img/ny_eso0932a.jpg',
    'img/pz_eso0932a.jpg',
    'img/nz_eso0932a.jpg',
])
envTexture.mapping = THREE.CubeReflectionMapping
material.envMap = envTexture

//const specularTexture = new THREE.TextureLoader().load("img/grayscale-test.png")
const specularTexture = new THREE.TextureLoader().load('img/earthSpecular.jpg')
material.roughnessMap = specularTexture
material.metalnessMap = specularTexture

const plane: THREE.Mesh = new THREE.Mesh(planeGeometry, material)
scene.add(plane)

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)

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.meshPhysicalMaterialFolder'
)

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, 'reflectivity', 0, 1)
meshPhysicalMaterialFolder.add(material, 'refractionRatio', 0, 1)
meshPhysicalMaterialFolder.add(material, 'envMapIntensity', 0, 1)
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.open()

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

function animate() {
    requestAnimationFrame(animate)

    render()

    stats.update()
}

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

animate()