Lux – Physically Based Shader Framework

Lux 2.01 is an open source shader framework that brings advanced lighting and rendering features to unity 5.
Lighting features
- Fast approximated area lights
- Diffuse fill lights
- Deferred lambert lighting
- Pre-integrated Skin Lighting
- Anisotropic Lighting
- Diffuse scattering or fuzz lighting
Surface features
- Dynamic weather
- Mix mapping
- Parallax, parallax occlusion and tessellation
- Double sided rendering
Although Lux ships with a rather flexible standard shader it allows you write custom surface shaders which will take full advantage of all feature mentioned above. In order to make this as easy as possible Lux offers a bunch of predefined shader macros and ships with various example surface shaders including:
- Tessellation
- Geometry based refraction
- Geometry based deferred decals
Lux 2.01 on GitHub | Lux 2.02 on GitHub | Official thread | Docs