This plugin to the MinVR3 project uses Klak's C# implementation of the Spout realtime video sharing spec to support sharing Unity textures between graphics processes.
The only current application is to route Unity offscreen framebuffers to a separate application for display. In particular, this is used with a custom QuadBufferedStereoServer written in C++ with DirectX to display QuadBuffered graphics in the Interactive Visualization Lab's 4-wall CAVE.
The plugin populates Unity's GameObject menu with options to create new MinVR VRConfigs to drive the CAVE.