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172 | 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'
import { Font, FontLoader } from 'three/examples/jsm/loaders/FontLoader'
import { TextGeometry } from 'three/examples/jsm/geometries/TextGeometry'
import { CSG } from './utils/CSGMesh'
import { TWEEN } from 'three/examples/jsm/libs/tween.module.min'
import Bender from './utils/bender'
const bender = new Bender()
const scene = new THREE.Scene()
const light1 = new THREE.SpotLight()
light1.position.set(6.5, 7.5, 7.5)
light1.angle = Math.PI / 4
light1.penumbra = 0.5
scene.add(light1)
const light2 = new THREE.SpotLight()
light1.position.set(-6.5, 7.5, 7.5)
light2.angle = Math.PI / 4
light2.penumbra = 0.5
scene.add(light2)
const camera = new THREE.PerspectiveCamera(
75,
window.innerWidth / window.innerHeight,
0.1,
1000
)
camera.position.x = -2
camera.position.y = 1
camera.position.z = -2
const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
controls.enableDamping = true
controls.target.z = -5
const data = {
text: 'abc123',
}
const envTexture = new THREE.CubeTextureLoader().load([
'img/px_25.jpg',
'img/nx_25.jpg',
'img/py_25.jpg',
'img/ny_25.jpg',
'img/pz_25.jpg',
'img/nz_25.jpg',
])
envTexture.mapping = THREE.CubeReflectionMapping
const material = new THREE.MeshStandardMaterial({
envMap: envTexture,
metalness: 1.0,
roughness: 0.0,
color: 0xffd700,
})
const cylinderMesh1 = new THREE.Mesh(
new THREE.CylinderGeometry(6, 6, 1.5, 64, 1, false),
material
)
const cylinderMesh2 = new THREE.Mesh(
new THREE.CylinderGeometry(5, 5, 1.6, 64, 1, false),
material
)
cylinderMesh1.position.set(0, 0, 0)
cylinderMesh2.geometry.rotateX(-Math.PI / 2)
cylinderMesh2.position.set(0, 0, 0)
cylinderMesh2.geometry.rotateX(-Math.PI / 2)
const cylinderCSG1 = CSG.fromMesh(cylinderMesh1)
const cylinderCSG2 = CSG.fromMesh(cylinderMesh2)
const ringCSG = cylinderCSG1.subtract(cylinderCSG2)
const ringMesh = CSG.toMesh(ringCSG, new THREE.Matrix4())
let engravedMesh = new THREE.Mesh(ringMesh.geometry, material)
scene.add(engravedMesh)
let font: Font
const loader = new FontLoader()
loader.load('fonts/helvetiker_regular.typeface.json', function (f) {
font = f
regenerateGeometry()
})
window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
}
const raycaster = new THREE.Raycaster()
renderer.domElement.addEventListener('dblclick', onDoubleClick, false)
function onDoubleClick(event: MouseEvent) {
const mouse = {
x: (event.clientX / renderer.domElement.clientWidth) * 2 - 1,
y: -(event.clientY / renderer.domElement.clientHeight) * 2 + 1,
}
raycaster.setFromCamera(mouse, camera)
const intersects = raycaster.intersectObject(engravedMesh, false)
if (intersects.length > 0) {
const p = intersects[0].point
new TWEEN.Tween(controls.target)
.to(
{
x: p.x,
y: p.y,
z: p.z,
},
200
)
.easing(TWEEN.Easing.Cubic.Out)
.start()
}
}
const stats = new Stats()
document.body.appendChild(stats.dom)
const gui = new GUI()
gui.add(data, 'text').onFinishChange(regenerateGeometry)
gui.open()
function regenerateGeometry() {
let newGeometry
newGeometry = new TextGeometry(data.text, {
font: font,
size: 1,
height: 0.2,
curveSegments: 2,
})
newGeometry.center()
bender.bend(newGeometry, 'y', Math.PI / 16)
newGeometry.translate(0, 0, -5)
const textCSG = CSG.fromGeometry(newGeometry)
const engravedCSG = ringCSG.subtract(textCSG)
engravedMesh.geometry.dispose()
engravedMesh.geometry = CSG.toMesh(
engravedCSG,
new THREE.Matrix4()
).geometry
}
function animate() {
requestAnimationFrame(animate)
controls.update()
TWEEN.update()
render()
stats.update()
}
function render() {
renderer.render(scene, camera)
}
animate()
|
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