Stunning 3D Beating Heart & Rain Effect using Three.js | WebFXGen

Are you looking to add a touch of romance or high-end visual flair to your website? Nothing captures attention quite like 3D interactive art.

In today's tutorial, I’m sharing a project from WebFXGen: a fully volumetric, solid 3D beating heart surrounded by a gentle cascade of colorful particle rain. We will be building this using Three.js, the most popular library for rendering 3D graphics in the browser.

                                               

See the Effect in Action

Before we dive into the code, let's look at what we are building. This isn't just a flat image; it is a computed 3D environment featuring:

• A Solid 3D Heart: Built using ExtrudeGeometry for a thick, "emoji-like" plastic look.

• Particle Rain: A custom system of falling hearts that reset automatically.

• Interactive UI: A collapsible control panel to adjust rain speed and heartbeat intensity.

• Responsive Design: Works perfectly on desktop and mobile.

The Technology Stack

To create this effect, we only need three things:

1. HTML5: For the structure.

2. Tailwind CSS: For the sleek, glass-morphism UI overlay.

3. Three.js: The core engine that handles the WebGL rendering.

Customization Tips

Change Colors: Look for the config object in the JavaScript. You can add your brand colors to the colors array.

 

Adjust Speed: The default rain speed is set to 0.8 for a slow, romantic feel. Increase this value for a stormier effect!

Conclusion

Creative coding with Three.js opens up endless possibilities for web design. This project demonstrates how combining standard meshes with particle systems can create a deep, immersive user experience.

If you enjoyed this WebFXGen tutorial, drop a comment below or share your own version of the code!