This is a custom level editing solution that connects a Unity C# scene with a C++ DirectX game (in this case, our game Skalv). The tool enables level designers and environment artists to work and make changes in realtime while the game is running.

The technique is accomplished through sending some realtime TCP packets to the C++ side, via C#’s System.Net. Examples of packets include transform values, colors, model and texture paths, particle systems, light distance, etc.