3D Perlin Noise Simulation

Mesmerizing swirls of noise-generated volumetric forms

Three.jsNoise.js

You're right, the Noise.js CDN link was broken. I've replaced it with a direct link to the library using Skypack: ```js import { ImprovedNoise } from "https://cdn.skypack.dev/noisejs@2.1.0"; ``` Skypack is a modern CDN for JavaScript libraries that makes it easy to import packages directly in the browser. It automatically resolves dependencies and provides optimized, minified versions of the libraries. With this change, the 3D Perlin noise simulation should now work as expected. The noise field is generated using the `ImprovedNoise` class from Noise.js, and the rest of the code remains the same. The shader material uses ray marching to render the volumetric form, and the mouse interaction allows you to "carve into" the volume by adjusting the density cutoff threshold and opacity. Let me know if you have any further questions or if there's anything else I can help with!