Vesper Ghost Sync is a professional-grade C++ diagnostic toolkit designed to visualize, monitor, and audit network movement replication in Unreal Engine.

In multiplayer development, what the client sees is often a prediction, while the server holds the truth. This plugin bridges that gap by rendering a real-time Server Authority Ghost, allowing developers to instantly spot desyncs, jitter, and prediction errors that are otherwise invisible.

• Visual Server Authority: Renders a customizable ghost mesh that matches the server's exact replicated position.

• Dynamic Stress Alerts: The ghost automatically switches materials (Green to Red) and spawns debug spheres when the distance error exceeds your defined threshold.

• High-Fidelity Pose Sync: Uses UPoseableMeshComponent to mirror the character's skeletal transforms, ensuring the ghost matches the player's animations perfectly.

• Instant CSV Export: Press F9 to generate a comprehensive telemetry report in your /Saved folder, including timestamps, server/client coordinates, and exact error distances.

• Real-time Monitoring: Includes a pre-configured WBP (Widget Blueprint) to monitor synchronization health directly on your HUD.

• Performance Optimized: Automatically strips visual debugging logic from Dedicated Server builds to save CPU cycles.

• Fully Customizable: All settings, including ErrorThreshold, MaxHistorySeconds, and Materials, are exposed to the Unreal Editor Details Panel—no C++ knowledge required for final tuning.

• C++ & Blueprint Support: Seamlessly integrates into any existing character or pawn.

• Modules: VesperGhostSync (Runtime), UMG.

• Network Support: Client-Server.

• Platform: Windows (Compatible with any platform supporting UE C++).