Small set of material functions for procedural generation of Stars and Nebulas in Unreal Engine 5. Easy to integrate into any sky material!

Features

• High-quality pixel-sized Stars.
• Stars with natural color variation.
• Stars twinkle with atmospheric influence and star color taken into account (closer to the horizon, where the atmosphere is denser, the twinkle is stronger; blue Stars twinkle more than red ones).
• Procedural Nebula, which can also affect the brightness of Stars within its area. Option to use your own texture-based Nebula.
• The product includes 2 material functions that can be easily integrated into any sky material.
• All Star and Nebula parameters are fully customizable. Parameters inside the material functions are organized into groups and contain comments where needed.
• Depending on chosen settings, the material can be more or less performance-heavy.
• Example map and sky material included.

How to integrate in your project

Download the project, open example level, and review the sky material example. Use the Migrate command on the MaterialFunctions folder (you only need the contents of this folder; everything else can be ignored).

Tip

Make sure the skysphere is large enough to be completely behind the clouds and covered by the atmosphere.