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Documentation

NDI Input

The NDI Input dialog lets Spectralite receive live video over the network from apps like Resolume, TouchDesigner, VDMX, or OBS for use in effects.

Open the dialog from Edit > Inputs > NDI. NDI (Network Device Interface) lets Spectralite receive live video from any NDI-capable application on the same network, such as Resolume, TouchDesigner, VDMX, or OBS.

Controls

NDI input enabled turns the NDI receiver on. When you do not use NDI, leave it off so that it creates no background network traffic.

Auto-discover sources scans the local network for NDI senders and offers them to the NDI Input node and the built-in NDI Input layer effect. Leave it on unless you have a reason to turn it off.

The dialog has no per-source picker. You select a source where you use it. By default, the NDI Input node in the Node Editor and the built-in NDI Input layer effect both pick up the first available source.

Using NDI

You can bring NDI video into a show in two ways.

  • Add a new layer in the Timeline (+ Add new layer) and choose the built-in NDI Input effect. The layer samples video color onto the mapped fixtures.
  • For custom effects, open the Node Editor and drop in an NDI Input node. It takes a position input and outputs a color. Wire it anywhere color would otherwise come from.

For the end-to-end workflow, see Sending NDI Video to Lights.

Troubleshooting

No NDI source visible. Confirm that both devices are on the same subnet and that Auto-discover is on. Then confirm that the sending application transmits video. NDI finds sources over mDNS, so a firewall that blocks multicast stops discovery.

Dropped frames. NDI uses a lot of bandwidth. For HD streams, connect sender and receiver over wired gigabit. The quickest fix is usually to lower the sending resolution.