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feat: implement texture mapping in vanilla

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divyap 2026-03-30 14:21:43 +05:30
parent 1e3faf9356
commit 2a39171446
4 changed files with 122 additions and 0 deletions
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12
Week-1/Task-2/vanilla/index.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Task 2 — Texture Mapping (Vanilla Three.js)</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<script type="module" src="main.js"></script>
</body>
</html>

62
Week-1/Task-2/vanilla/main.js Normal file
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import * as THREE from 'three'
const scene = new THREE.Scene()
scene.background = new THREE.Color('pink')
const camera = new THREE.PerspectiveCamera(
75,
window.innerWidth / window.innerHeight,
0.1,
1000
)
camera.position.z = 5
const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
const canvas = document.createElement('canvas')
canvas.width = 256
canvas.height = 256
const ctx = canvas.getContext('2d')
ctx.fillStyle = 'white'
ctx.fillRect(0, 0, 256, 256)
ctx.fillStyle = 'black'
ctx.fillRect(0, 0, 128, 128)
ctx.fillRect(128, 128, 128, 128)
const texture = new THREE.CanvasTexture(canvas)
const geometry = new THREE.BoxGeometry(2, 2, 2)
const material = new THREE.MeshBasicMaterial({ map: texture })
const light1 = new THREE.AmbientLight(0xffffff, 0.5)
scene.add(light1)
const light2 = new THREE.PointLight(0xffffff, 1)
light2.position.set(5, 5, 5)
scene.add(light2)
const cube = new THREE.Mesh(geometry, material)
scene.add(cube)
function animate() {
requestAnimationFrame(animate)
cube.rotation.x += 0.01
cube.rotation.y += 0.01
renderer.render(scene, camera)
}
animate()
window.addEventListener('resize', () => {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
})

17
Week-1/Task-2/vanilla/package.json Normal file
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{
"name": "task-2-vanilla",
"version": "0.0.0",
"private": true,
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build",
"preview": "vite preview"
},
"devDependencies": {
"vite": "^5.0.0"
},
"dependencies": {
"three": "^0.163.0"
}
}

31
Week-1/Task-2/vanilla/style.css Normal file
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* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body, html {
width: 100%;
height: 100%;
overflow: hidden;
background: #111;
}
canvas {
display: block;
}
#info {
position: fixed;
top: 16px;
left: 50%;
transform: translateX(-50%);
color: #fff;
font-family: system-ui, sans-serif;
font-size: 14px;
background: rgba(0, 0, 0, 0.5);
padding: 6px 16px;
border-radius: 20px;
pointer-events: none;
z-index: 10;
}