Home Game Dev Unreal Assets Unreal Engine Code Plugins Advanced Flock System – Multithreaded Fish AI and Reactive School Behavior v5.7

Advanced Flock System – Multithreaded Fish AI and Reactive School Behavior v5.7

1077 Views Stock 919 2026-01-30

Details

 The Advanced Flock System – Multithreaded Fish AI and Reactive School Behavior v5.7 is a game resource pack designed for creating realistic fish herd simulations. The plugin enables fish to react to any primitive objects with complex collision detection and responds to any pawn or character in the environment. Built with multithreading, the system offloads flocking logic to background threads, allowing the main thread to focus on rendering and maintaining high frame rates. The core logic is implemented in C++, while the main thread only handles instance movement, improving performance and enabling smooth operation even with large numbers of fish. The system supports both box and free-range movement, offering a high degree of flexibility. It includes 5000 fish instances running at 120+ FPS and up to 20,000 fish instances at 50–60 FPS on an AMD Ryzen 5 2700x. Users can configure the number of threads and fish instances dynamically. The package consists of one C++ class, two actor blueprints, three fish static meshes, one aquarium static mesh, three materials with animated wing effects, and textures at 1024x1024 resolution. It also includes a test pawn blueprint for easy setup and does not require knowledge of C++. With numerous customizable settings, this resource pack allows developers to achieve the desired school behavior and visual realism. 
2026-01-30 00:00:00-update version:Advanced Flock System – Multithreaded Fish AI and Reactive School Behavior v5.7