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OccaSoftware presents: Buto - Volumetric Fog and Volumetric Lighting for URP

Buto is a powerful volumetric lighting and volumetric fog asset for Unity URP. It provides you with a wide range of advanced features to take your game's atmosphere to the next level.

✅Updated to Unity 6!

All the Occa Software assets are currently going through the process of being updated to Unity 6. If you run into any problems, please reach out to us!

✅ Physically based:

Our volumetric lighting and fog accurately renders atmospheric particles and light scattering using algorithms described in leading technical papers and strategies from major AAA studios.

✅ Volumetric Lighting and Shadow:

Objects realistically occlude lighting by interacting with the fog, keeping your fog grounded in your scene.

✅ Fast:

Optimized, high-performance rendering with intelligent depth-aware upscaling (~0.2ms on an Nvidia 1080 desktop equivalent).

✅ Volumetric Noise:

Built-in customizable volumetric noise gives texture to the particle distribution. Choose from 5 configurable volumetric noise styles or import your own texture for the ultimate control.

✅ Atmospheric Height Fog:

Particle density exponentially decreases over height, resulting in realistic fog attenuation over altitude. Control the fog height as well.

✅ Stylized Fog Options:

Achieve your artistic vision with color ramps, simple color adjustments, and light and shadow intensity sliders.

✅ Additional Lights:

Illuminate the fog with volumetric lights. Supports directional lights, point lights, spot lights, and area lights.

✅ Fog Density Masks:

Add or erase volumetric fog using Fog Density Masks

✅ Temporal Anti-Aliasing:

Improved quality for high-density fog with optional Temporal Reprojection.

✅ Integrated with the Volume Component System:

Seamlessly tie Volumetric Fog into your workflow with Unity's Volume Component system. Set Global Fog parameters and local Box and Sphere Volume parameters with seamless blending between Fog Volume settings.

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Docs: https://docs.occasoftware.com/buto/

Discord: https://www.occasoftware.com/discord

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Compatibility

Editor Versions

✅ 6 LTS

✅ 2022.3 LTS

Render Pipelines

✅ Universal

❌ Built In

❌ HDRP

Render Paths

✅ Deferred

✅ Forward

APIs

✅ DirectX

✅ OpenGL

✅ Vulkan

✅ Metal

Platforms

✅ Console

✅ PC

❌ WebGL

❌ Mobile

❌ VR

Note: This asset is deliberately lightweight and includes minimal demo scenes, and does not include any environment art. It does not include any of the models or environments shown in the screenshots. However, you may purchase the Low Poly Fantasy Village, which is shown in some screenshots, separately.

We recommend pairing Buto with...

- Altos - Skybox, Clouds, and Weather for URP

- Auto Exposure for URP

- Ultimate Lit Shader for URP