shopglobal/Threeneonsphere.md

## Threeneonsphere.md

      
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              Threeneonsphere.md
            
          
    To create a neon sphere using Three.js, you can follow these steps:


Setup Three.js environment: Make sure you have included Three.js in your project. You can do this by adding the Three.js script in your HTML or installing it via npm if using a module bundler.


Create a basic scene: We'll set up a scene, camera, renderer, and add a glowing neon material to a sphere.


HTML:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Neon Sphere with Three.js</title>
  <style>
    body { margin: 0; }
    canvas { display: block; }
  </style>
</head>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
  <script>
    // Setup basic 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);

    // Create a sphere
    const geometry = new THREE.SphereGeometry(2, 32, 32);

    // Create neon material using a shader or emissive material
    const neonMaterial = new THREE.MeshBasicMaterial({
      color: 0x00ffff, // Neon cyan color
      emissive: 0x00ffff, // Make it glow
      emissiveIntensity: 1,
      wireframe: true, // To give it a cool neon effect
    });

    const sphere = new THREE.Mesh(geometry, neonMaterial);
    scene.add(sphere);

    camera.position.z = 5;

    // Add a subtle animation
    function animate() {
      requestAnimationFrame(animate);
      sphere.rotation.x += 0.01;
      sphere.rotation.y += 0.01;
      renderer.render(scene, camera);
    }

    animate();

    // Handle window resizing
    window.addEventListener('resize', function() {
      renderer.setSize(window.innerWidth, window.innerHeight);
      camera.aspect = window.innerWidth / window.innerHeight;
      camera.updateProjectionMatrix();
    });
  </script>
</body>
</html>
Key Features:


Wireframe Sphere: The wireframe mode gives the sphere a neon look.
Emissive Material: The emissive property in MeshBasicMaterial simulates a glow effect.
Rotation Animation: The sphere rotates along the x and y axes for a dynamic effect.

You can customize the neon color and tweak the glow intensity by adjusting the emissive and emissiveIntensity properties.