UE: PixelStreaming
What Is Pixel Streaming?
How to Use It
Enable the Plugin
Just enable the PixelStreaming plugin
Add Launch Arguments
-AudioMixer -PixelStreamingIP=127.0.0.1 -PixelStreamingPort=8888 -PixelStreamingEncoderCodec=VP9
Through Editor Settings
Editor Preferences -> Play -> Additional Launch Parameters
Notes:
- The official documentation uses -PixelStreamingIP=localhost, but in my testing localhost did not work, so enter 127.0.0.1 directly here
- This only takes effect in standalone mode. You can change the default standalone window size through the window settings above
- Video encoding for streaming in 5.3 only supports AV1, H264, VP8, and VP9; 5.4 supports H265. I recommend VP9 here for its broader compatibility. Even three 4K screens work fine, and its encoding efficiency is high too
Launch Through a Shortcut
This is familiar territory, so I will not go into it again.
Start the Signaling Server
Download from GitHub
Go straight to the releases page
Find and download the version matching your engine. Why download a release directly? Because it is already built and ready to use. Downloading the main branch or another branch directly will produce a missing player.html error.
Download and Install Node
Node.js — Download Node.js® (nodejs.org)
After downloading, install it with all the default settings.
Start the Signaling Server
Open the files you downloaded from GitHub -> SignallingWebServer
Open cmd in this directory
Run the command:
node cirrus.js
This is what success looks like:
Access It in a Browser
Simply enter 127.0.0.1 in the browser; on another computer, enter the IP address.
The default listening port here is 80, so you can omit it. For another port, you need to change it explicitly.
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