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Using NDI

Scope supports real-time, low-latency video over IP via NDI (Network Device Interface). Unlike Spout which is limited to sharing between applications on the same machine, NDI works across the local network — you can send and receive video between different computers.
The NDI SDK / NDI Tools must be installed on the machine running Scope. NDI works on Windows, macOS, and Linux.

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NDI Receiver

Scope can receive video from any NDI source on the network.
1

Set input mode to Video

Under Input & Controls, set Input Mode to Video.
2

Select NDI as source

Set Video Source to NDI.
3

Choose an NDI source

Available NDI sources on the network will appear in the dropdown. Select the one you want to receive from. A small preview thumbnail will show the current frame from the selected source.
When selecting an NDI source, Scope automatically probes the source’s native resolution and adjusts the pipeline dimensions to match. This avoids stretching or compression artifacts.

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NDI Sender

NDI output (sender) support is coming soon. Once available, you will be able to send Scope’s processed output over NDI to any receiver on the network.

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Installing NDI Tools

1

Download the installer

Go to ndi.video/tools and download the installer for your platform:
PlatformWhat to install
WindowsNDI Tools (includes the runtime DLL)
macOSNDI SDK for Apple (provides libndi.dylib)
LinuxNDI SDK — ensure libndi.so is on the library path
2

Restart Scope

Restart Scope after installation. The NDI option will appear automatically once the SDK is detected.
If NDI doesn’t appear after restarting Scope, try restarting again. On Windows, if environment variables aren’t being picked up, you may need to restart your machine.

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Compatible Applications

Scope should be able to share real-time video with any application that supports NDI. The following applications have been tested:

Resolume Arena / Avenue

Built-in NDI input/output

OBS Studio

With the DistroAV plugin

TouchDesigner

With NDI In and NDI Out TOPs

vMix

Built-in NDI support

VirtualDJ

With Send-NDI plugin
Any application that supports NDI should work with Scope. Check your application’s documentation for NDI integration instructions.

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See Also

Using Spout

Share real-time video between applications on the same Windows machine

Quick Start

Get Scope running if you haven’t already