Universal Render Pipeline
Your game's environment is boring. Fix it with Buto. Lightning-fast, infinitely customizable volumetric lighting and fog. Set up in 60 seconds. Join 515+ game devs already experiencing the future of volumetrics.
Bring your game's environment to life with Buto, the ultimate volumetric fog and lighting asset for Unity URP.
Add realism to your outdoor scenes with misty forests or foggy mountains, create an eerie atmosphere in your horror game, or add depth and texture to your game's atmosphere with customizable volumetric noise.
With Buto, you can achieve your artistic vision and take your game's atmosphere to new heights. Experience the future of volumetrics and make your game stand out with Buto.
Buto is not just a volumetric fog and lighting asset, it's a powerful tool that can elevate the atmosphere of your game to a whole new level.
For amateur developers, Buto offers a user-friendly interface that allows you to easily add volumetric fog and lighting to your game with just a few clicks. With the built-in customizable volumetric noise and color ramps, you can add texture and depth to your fog, making it look more realistic and believable. The fog density masks feature allows you to add or erase volumetric fog in specific areas, giving you even more control over the look and feel of your game.
For expert developers, Buto offers a wide range of advanced features that allow you to take your game's atmosphere to the next level. The physically based volumetric fog and lighting system uses algorithms described in leading technical papers and strategies from major AAA studios, providing a level of realism that is unmatched by other assets. The volumetric lighting and shadow feature ensures that objects in your scene realistically occlude lighting and cast shadows, grounding your fog in the scene. Additionally, Buto offers support for point lights and spotlights, giving you even more ways to illuminate your fog and create stunning visuals.
Buto can be used in a variety of use cases in your game, from adding realism to outdoor environments, such as a misty forest or a foggy mountain, to creating an eerie atmosphere in a horror game. The volumetric noise feature can be used to add texture to the particle distribution, making the fog look more natural. The atmospheric height fog feature makes the particle density exponentially decreases over height, resulting in realistic fog attenuation over altitude. The Long-Range Visual Consistency feature can be used to guarantee visual realism over long distances. The Stylized Fog Options feature allows you to achieve your artistic vision with color ramps, simple color adjustments, directional lighting controls, and light and shadow intensity sliders.
Buto is a must-have asset for any Unity developer looking to create immersive and believable environments in their game. With its advanced features and user-friendly interface, Buto is perfect for both amateur and expert developers. And with our 100% satisfaction guarantee, you can trust that Buto will meet your needs and exceed your expectations.
Vulkan, OpenGL, Direct3D 11, Direct3D 12
Please reach out to us directly at hello@occasoftware.com or on Twitter @occasoftware if you have any problems or questions. If you are not satisfied, we will refund you.
Yes, you can manually increase the maximum light limit by editing a few of the files included with Buto. We will walk you through those steps here. Bear in mind that increasing the maximum light limit could cause increased performance requirements, so we recommend raising it to match your required number of lights rather than setting it to some very high number.
No. Buto relies on perspective projection and the depth buffer for fog rendering. 2D games typically render using orthographic projection and typically do not have a depth buffer available for rendering, so Buto is mostly incompatible with 2D projects.
Absolutely - Buto and LSPP can be used together or separately for different effects. LSPP is great at adding additional light scattering when the sun is in view. It can add really fast, really powerful light rays with minimal setup or configuration. Buto is powerful and flexible, is physically based, and supports volumetric noise and lighting. Combining them can give you a really cool, layered effect. Games like Elden Ring use these types of techniques together, with (their equivalent of) Buto used to add depth and texture to the scene and (their equivalent of) LSPP used to add sharp, powerful, dynamic god rays.
No. Buto currently renders at half resolution by default. Rendering below half resolution leads to increased challenges with depth-aware upscaling and lead to relatively increased performance costs. We're exploring options to offer reduced performance cost for Buto through the usage of the froxel fog rendering technique, which allows more flexibility in terms of render scaling. However, we have no plans to offer quarter-resolution or full-resolution render scaling options for the current ray-based implementation.
In Unity 2022.2, Buto may look faint, have reflections, white dots, white blotches, black dots, black blobs, or black outlines.
To resolve this issue, you need to upgrade Buto's shader graphs to use the Full Screen material type. Unity introduced a new Full-Screen material type for Shader Graphs in Unity 2022.2. This simultaneously broke compatibility with the Unlit material type when used as part of a full-screen pass.
Buto was designed in 2021.3 with the Unlit material type, so you need to make a few small changes to switch to the full-screen material type for Buto to work correctly with Unity 2022.2 and later. We made a video guide and a text guide on how to upgrade.
Watch the video guide on how to upgrade Buto to Unity 2022.2, or follow these steps to make the necessary changes:
Learn more about the new full-screen material type here: Shader Graph Full Screen Master Node - Unity Platform - Rendering & Visual Effects | Product Roadmap (productboard.com)
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