Features:

Server-authoritative or owner-authoritative movement sync, switchable per actor
Quantised push-model state - no per-tick RPCs
Time-based interpolation with bounded extrapolation and ease-back onto real data
Distance-based send rate scaling, so far-away actors cost less bandwidth
Optional dormancy while an actor is at rest
Optional hub-based replication
Per-axis position, rotation and scale channels
Blueprint-readable diagnostics: effective send rate, playback lag, buffered pose count, extrapolation state, tracked actor count
Built for Iris
Drop-in: add one component, no changes to your movement code
Demo map included, comparing synced and stock replicated movement side by side under emulated latency, jitter and packet loss

Code Modules:

ButterNet Movement Sync (runtime)

Number of Blueprints: 7 (demo content)

Number of C++ Classes: 4

Network Replicated: Yes

Supported Development Platforms: Windows

Supported Target Build Platforms: Win64, Linux

Documentation Link: https://evilsoftware.lol/butternetsync/installation

The Iris plugin must be enabled; ButterNet Movement Sync enables it automatically as a dependency. No other third-party dependencies.

The included demo map (Content/Demo/L_ButterNetDemo) requires a server and a client to show anything. In standalone the sync subsystem returns immediately and nothing replicates.

Evil Software

Evil Software

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