co-mono/threejs-scene.html

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HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Three.js 3D Scene</title>
<style>
body { margin: 0; }
canvas { display: block; }
</style>
</head>
<body>
<script src="https://cdn.jsdelivr.net/npm/three@0.132.2/build/three.min.js"></script>
<script>
// Create the scene
const scene = new THREE.Scene();
// Create a camera
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;
// Create a renderer
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// Add a cube to the scene
const geometry = new THREE.BoxGeometry();
const material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
const cube = new THREE.Mesh(geometry, material);
scene.add(cube);
// Animation loop
function animate() {
requestAnimationFrame(animate);
// Rotate the cube
cube.rotation.x += 0.01;
cube.rotation.y += 0.01;
renderer.render(scene, camera);
}
// Handle window resize
window.addEventListener('resize', () => {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
});
// Start the animation
animate();
</script>
</body>
</html>