finaly a cool intro
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STEINNI
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import * as THREE from 'three'
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import { FontLoader } from 'three/examples/jsm/loaders/FontLoader.js'
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import { TextGeometry } from 'three/examples/jsm/geometries/TextGeometry.js'
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import { RGBELoader } from 'three/examples/jsm/loaders/RGBELoader.js'
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// === Scene & Camera ===
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const scene = new THREE.Scene()
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const camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 0.01, 100)
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camera.position.set(0.1, 0.02, 4)
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//camera.position.z = 4
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// === Renderer (transparent) ===
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const renderer = new THREE.WebGLRenderer({
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antialias: true,
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alpha: true,
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canvas: document.querySelector('.intro3d')
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})
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renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2))
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renderer.setSize(window.innerWidth, window.innerHeight)
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renderer.setClearColor(0x000000, 0)
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renderer.outputColorSpace = THREE.SRGBColorSpace
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const rgbeLoader = new RGBELoader()
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rgbeLoader.load('/app/assets/images/satara_night_no_lamps_2k.hdr', hdrTexture => {
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hdrTexture.mapping = THREE.EquirectangularReflectionMapping
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scene.environment = hdrTexture
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scene.background = hdrTexture
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})
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// === Load background as a plane that fits the viewport ===
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const loader = new THREE.TextureLoader()
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let plane
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let planeDistance = 4.4
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loader.load('/app/assets/images/logop42-intro_three.png', texture => {
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texture.colorSpace = THREE.SRGBColorSpace
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texture.wrapS = THREE.ClampToEdgeWrapping
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texture.wrapT = THREE.ClampToEdgeWrapping
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texture.minFilter = THREE.LinearFilter
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texture.magFilter = THREE.LinearFilter
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const imageAspect = texture.image.width / texture.image.height
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// Create plane sized to exactly fill the camera frustum at Z = -planeDistance
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function makeOrResizePlane() {
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const fovRad = THREE.MathUtils.degToRad(camera.fov)
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const viewHeight = 2 * Math.tan(fovRad / 2) * planeDistance
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const viewWidth = viewHeight * camera.aspect
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let planeWidth, planeHeight
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if (viewWidth / viewHeight > imageAspect) {
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planeHeight = viewHeight
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planeWidth = planeHeight * imageAspect
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} else {
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planeWidth = viewWidth
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planeHeight = planeWidth / imageAspect
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}
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if (!plane) {
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const geo = new THREE.PlaneGeometry(planeWidth, planeHeight)
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const mat = new THREE.MeshBasicMaterial({ map: texture })
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plane = new THREE.Mesh(geo, mat)
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plane.scale.set(1.44, 1.5, 1)
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plane.position.z = 0
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plane.renderOrder = 0
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scene.add(plane)
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} else {
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plane.geometry.dispose()
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plane.geometry = new THREE.PlaneGeometry(planeWidth, planeHeight)
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}
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}
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makeOrResizePlane()
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onResizeCallbacks.push(makeOrResizePlane)
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})
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const glassMat = new THREE.MeshPhysicalMaterial({
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color: 0xffffff,
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metalness: .05,
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roughness: 0.05, //0.02,
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transmission: 1, //1, // true glass
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thickness: 1,//0.6,
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ior: 1.45, //1.5,
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envMapIntensity: 1.2,
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attenuationColor: new THREE.Color(0x88ffcc),
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attenuationDistance: 2,
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})
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// === Lights ===
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const l1 = new THREE.DirectionalLight(0xffbb33, 1)
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l1.position.set(-1, 1.5, 6)
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scene.add(l1)
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const l2 = new THREE.DirectionalLight(0xffbb33, 1)
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l2.position.set(2, -1.5, 6)
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scene.add(l2)
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const lettersPosScale =[
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{ position: { x: -0.98, y: 0.02, z: -1 }, scale: { x: 1, y: 1.12, z: 1 } },
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{ position: { x: -0.63, y: -0.04, z: -1.05 }, scale: { x: 1, y: 1.05, z: 1 } },
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{ position: { x: -0.28, y: -0.05, z: -1.1 }, scale: { x: 0.9, y: 1.15, z: 1, X: 0.8 } },
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{ position: { x: -0.1, y: -0.04, z: -1.15 }, scale: { x: 1, y: 1, z: 1 } },
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{ position: { x: 0.12, y: -0.06, z: -1.2 }, scale: { x: 0.65, y: 1, z: 1 } },
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{ position: { x: 0.355, y: -0.055, z: -1.25 }, scale: { x: 0.5, y: 0.9, z: 1, Y: 0.9 } },
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{ position: { x: 0.53, y: -0.01, z: -1.3 }, scale: { x: 1, y: 0.94, z: 1 } },
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{ position: { x: 0.84, y: -0.05, z: -1.35 }, scale: { x: 0.95, y: 1.04, z: 1 } },
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{ position: { x: 1.17, y: -0.05, z: -1.4 }, scale: { x: 0.7, y: 1.02, z: 1 } },
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]
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const glassLetters = []
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const text = 'Project42'
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const fontLoader = new FontLoader()
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fontLoader.load('/app/thirdparty/Three/fonts/helvetiker_regular.typeface.json', font => {
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const mat = new THREE.MeshPhysicalMaterial({
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metalness: 0.2,
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roughness: 0.04,
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transmission: 1,
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thickness: 0.8,
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ior: 1.45,
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envMapIntensity: 1.2,
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attenuationColor: new THREE.Color(0x88ffcc),
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attenuationDistance: 2,
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color: 0x88ffcc,
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emissive: 0x00CCFF,
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emissiveIntensity: 0.05,
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})
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for (let i = 0; i < text.length; i++) {
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const char = text[i]
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const geo = new TextGeometry(char, {
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font,
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size: .5,
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height: 0.15,
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curveSegments: 32,
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bevelEnabled: true,
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bevelThickness: 0.03,
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bevelSize: 0.03,
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bevelSegments: 32
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})
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geo.center()
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const mesh = new THREE.Mesh(geo, mat)
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mesh.position.set(lettersPosScale[i].position.x, lettersPosScale[i].position.y, lettersPosScale[i].position.z)
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mesh.scale.set(lettersPosScale[i].scale.x, lettersPosScale[i].scale.y, lettersPosScale[i].scale.z)
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scene.add(mesh)
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glassLetters.push(mesh)
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}
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})
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// Helper: update envMap (hide cube → capture → show cube)
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function updateEnvMap() {
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const wasVisible = cube.visible
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cube.visible = false
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cubeCam.update(renderer, scene)
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cube.visible = wasVisible
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glassMat.envMap = cubeRT.texture
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glassMat.needsUpdate = true
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}
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let t = 0
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let lettersZ=-1
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function animate() {
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requestAnimationFrame(animate)
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lettersZ += .005
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for(const letter of glassLetters){
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letter.position.z += 0.005 //= lettersZ
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}
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if(lettersZ>1.5) {
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for(const [i, letter] of glassLetters.entries()){
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letter.rotation.y += (i-4)/2000
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letter.position.x += (i-4)/4000
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}
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}
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if(lettersZ>4.5) {
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lettersZ = -1
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for(const [i, letter] of glassLetters.entries()){
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letter.rotation.y = 0
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letter.position.x = lettersPosScale[i].position.x
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letter.position.z = lettersPosScale[i].position.z
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}
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}
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// refresh envmap if anything moves around glass to update reflections
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//if ((t++ % 2) === 0) updateEnvMap()
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renderer.render(scene, camera)
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}
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animate()
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// === Resize handling ===
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const onResizeCallbacks = []
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window.addEventListener('resize', () => {
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camera.aspect = window.innerWidth / window.innerHeight
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camera.updateProjectionMatrix()
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renderer.setSize(window.innerWidth, window.innerHeight)
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onResizeCallbacks.forEach(fn => fn())
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})
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