How to live-stream NDI into Unreal Engine

Set up an NDI live-stream into Unreal in less than 1 minute

Written by OWL

Updated 1 year ago

Go to the 'Place Actors' panel > 'Off World Live' and drag-and-drop the 'OWL NDI Receiver Manager' into your scene:
In the 'Details' panel, go to 'Off World Live NDI Receiver Settings' and create/ select a Render Target:
Select your NDI sender from the drop down list and you will see it appear in the Render Target:
Your NDI source is now sending to a Render Target in Unreal:
To add your NDI feed into your level onto a plane, find your Render Target in the Content Browser and create a Material from it:
If your material contains Alpha then double click on the Material thumbnail to open it and then in it's details panel select 'AlphaComposite':
In the main canvas of your Material connect the 'Alpha' node to 'Opacity':
Select the Plane or other element in your level you want to show your video on and drag and drop the Material from your Render Target onto it:
If you want to receive audio from your NDI source then in NDI SoundWave open the drop down list and add a new Sound Wave:
This SoundWave will receive your sound but if you want it to play continuously in your level in and out of runtime then you need to convert it into a SoundCue. Find the SoundWave in your Content Browser, right click on it and select 'Create Cue':
Now drag and drop the Sound Cue into your level and the sound from your NDI source will play:
You will now see your NDI feed playing in your level.

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