Funnel
Funnel is a Syphon server plugin for Unity. It allows camera objects in Unity to share its rendered frames with other applications via the Syphon technology. This technology has been supported in many graphics applications on Mac OS X, such as VDMX and MadMapper, and because of its great flexibility and performance efficiency, it gives Unity an extra level of expressiveness at almost zero performance loss.
Funnel is provided under the open source license and available on GitHub.