pages235/experiments/three.ts
2025-07-02 16:25:36 +03:00

61 lines
1.7 KiB
TypeScript

import * as THREE from 'three'
import { loadThreeJsTextureFromBitmap } from '../renderer/viewer/lib/utils/skins'
// Create scene, camera and renderer
const scene = new THREE.Scene()
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000)
const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
// Position camera
camera.position.z = 5
// Create a canvas with some content
const canvas = document.createElement('canvas')
canvas.width = 256
canvas.height = 256
const ctx = canvas.getContext('2d')
scene.background = new THREE.Color(0x444444)
// Draw something on the canvas
ctx.fillStyle = '#444444'
// ctx.fillRect(0, 0, 256, 256)
ctx.fillStyle = 'red'
ctx.font = '48px Arial'
ctx.textAlign = 'center'
ctx.textBaseline = 'middle'
ctx.fillText('Hello!', 128, 128)
// Create bitmap and texture
async function createTexturedBox() {
const canvas2 = new OffscreenCanvas(256, 256)
const ctx2 = canvas2.getContext('2d')!
ctx2.drawImage(canvas, 0, 0)
const texture = new THREE.Texture(canvas2)
texture.magFilter = THREE.NearestFilter
texture.minFilter = THREE.NearestFilter
texture.needsUpdate = true
texture.flipY = false
// Create box with texture
const geometry = new THREE.BoxGeometry(2, 2, 2)
const material = new THREE.MeshBasicMaterial({
map: texture,
side: THREE.DoubleSide,
premultipliedAlpha: false,
})
const cube = new THREE.Mesh(geometry, material)
scene.add(cube)
}
// Create the textured box
createTexturedBox()
// Animation loop
function animate() {
requestAnimationFrame(animate)
renderer.render(scene, camera)
}
animate()