Asset Version：1.7 Engine version: 5.5

Efficient Runtime Actor Management

The Flex Partition – Optimization System provides a powerful solution for managing runtime actors in Unreal Engine. It brings World Partition style streaming to entities that are spawned or procedurally generated during gameplay. By registering these actors into fast 2D or 3D spatial grids, developers can maintain high performance in complex environments. Consequently, actors are automatically activated when near streaming sources and deactivated when they fall out of range.

Advanced Spatial Grids and Scaling

The system utilizes 2D or 3D spatial hash grids to handle relevance queries effectively. These grids are designed to be scalable, making them suitable for any world size. Furthermore, the tool supports multiple grid configurations. This allows for per-actor grid selection, giving developers granular control over how different entities are managed within the world. Therefore, the system remains efficient even as the complexity of the project grows.

Performance Stability and Rate-Limiting

To ensure a smooth user experience, the Flex Partition – Optimization System includes rate-limited streaming. It manages spawn and despawn queues with specific per-tick limits. This functionality is essential for preventing frame spikes that often occur during heavy actor loading. Additionally, the system features anti-pop-in hysteresis. This configurable setting prevents actors from rapidly flickering between active and inactive states when they are at the edge of the streaming range.

State Persistence and Custom Data

One of the most useful features of this system is automatic runtime persistence. When an actor is deactivated, the system captures its current state. Upon reactivation, it re-applies this state to maintain continuity. Moreover, it supports lightweight custom actor data. Developers can store and retrieve custom structs or variables, and the entire process is Blueprint friendly. This ensures that important gameplay data is preserved without complex manual coding.

Multiplayer Readiness and Extensibility

The developer designed this tool to be multiplayer ready from the start. It features server control with network relevance tuning to optimize data flow between clients. Furthermore, the streaming logic is highly extensible. Developers can override the streaming handle to integrate actor pooling systems, such as FlexPool. This flexibility allows the tool to fit into various production pipelines and technical requirements.

Developer Tools and Integration

For faster iteration, the system includes debug visualization tools. Developers can draw grids and actor bounds directly in the viewport using console variables. This makes it easier to verify streaming ranges and grid placement during development. Additionally, custom streaming sources can be established using player pawns or unique streaming source components. The Flex Partition – Optimization System provides a comprehensive framework for maintaining performance in dynamic, actor-heavy environments.