Ready to turn code into magic? In this full, from-scratch tutorial, we build our "Ethereal Light Creature" scene using Three.js. This is where the theory from Episode 1 becomes a stunning reality.
We'll start with a completely blank folder and, line by line, write the HTML, CSS, and JavaScript needed to create this beautiful, performant 3D animation. You'll learn professional techniques that go beyond the basics.
✅ In this tutorial, you'll learn how to:
Set up a complete Three.js project from scratch.
Create procedural geometry using `TubeGeometry` and `CatmullRomCurve3`.
Generate hundreds of high-performance particles with `InstancedMesh`.
Apply beautiful gradients with `Vertex Colors` (no textures needed!).
Implement a performant, silky-smooth animation loop by updating geometry.
Add a stunning "glow" effect with the `UnrealBloomPass` for post-processing.
This is the code for the project now available on the AnimTheme marketplace. Follow along and build it yourself!
Brought to you by the AnimTheme team! We're building a marketplace and a built-in code editor (IDE) designed to help developers and designers like you create, share, and learn from amazing web projects.
➡️ Follow our journey on X: https://x.com/AnimTheme
🕒 TIMESTAMPS:
0:00 - What We're Building Today!
1:30 - The Setup: Creating the Files & Folders
3:00 - The Foundation: HTML & CSS Boilerplate
5:30 - The Engine: Basic Three.js Scene Setup
8:30 - The Atmosphere: Creating Lanterns with InstancedMesh
12:00 - The Star: Building the Light Creature's Body
14:15 - The "WOW" Factor: Applying Vertex Color Gradients
16:40 - The Animation: The Optimization Secret for Smooth Motion
19:10 - The Final Polish: Adding the Magical Glow Effect
21:20 - The Final Result & What's Next!
Did you build along with us? Let us know in the comments how it went! Your feedback helps us create better tutorials.
Thanks for building with me. Happy creating!
#ThreeJS #JavaScript #WebDevelopment #CreativeCoding #ProceduralAnimation #GenerativeArt #Tutorial #AnimTheme