NDI and Syphon (Video Sharing)

Sharing real-time video textures between applications without using excessive CPU.

NDI (Network Device Interface)

Video over IP. Useful for sending video to/from other computers on the same network. It is cross-platform.

  • Video Stream In TOP: Select NDI source.
  • Video Stream Out TOP: Send NDI stream.

Syphon (macOS) / Spout (Windows)

Zero-latency GPU memory sharing on the same machine. Since you are on macOS, you will use Syphon.

  • Syphon Spout In TOP: Receive video from another app (like Resolume or MadMapper) on your Mac.
  • Syphon Spout Out TOP: Send your TouchDesigner video output to another app.

Note: In TouchDesigner, the node is called Syphon Spout to support both OS types, but on Mac, it utilizes the Syphon protocol under the hood.


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