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Horus - Occlusion culling for Unity

Occlusion culling increases rendering performance simply by not rendering geometry that is outside the view frustum or hidden by objects closer to the camera. Horus is a non-conservative occlusion culler and it performs better than Umbra (Unity's native occlusion culler) in small scenes such as interiors filled with lots of objects.
Horus is currently in alpha stage!

<p align="center"> <img src="https://github.com/FerzanK/Horus-Unity-Occlusion-Culling/blob/master/Documentation/VisibilityAnimation.gif"/> </p>

Features

Written in C++17
Works better than Umbra in small spaces
Fully dynamic, baking not required

Getting Started

Add HorusManager.cs located in UnityScript folder to your scene and attach it to your camera
Compile plugin with Visual Studio 2019, name DLL file horus.dll and place it in Plugins folder of your Unity project

Todo

Unit tests and CI setup
Provide pre-compiled binaries
Custom memory allocator & memory pool
Mesh -> Octree converter
BVH/Octree based pre-culling
Fiber based task system
Non-static mesh support
Transparent object support
Skinned mesh support
Better C# marshalling code
Multicore support

Versioning

I use SemVer for versioning. Current version is 0.1

Built With

OpenGL Mathematics (GLM) - C++ Math library
spdlog - C++ logging library
Bitmap - C++ Bitmap Library

References

Real-Time Rendering, Fourth Edition http://www.realtimerendering.com/
Fixing Frustum Culling http://iquilezles.org/www/articles/frustumcorrect/frustumcorrect.htm
Efficient Occlusion Culling https://developer.download.nvidia.com/books/HTML/gpugems/gpugems_ch29.html
Parallelizing the Naughty Dog Engine Using Fibers https://www.gdcvault.com/play/1022186/Parallelizing-the-Naughty-Dog-Engine

License

This project is licensed under the MIT License - see the LICENSE.md file for details