Configuring the media source using Composure

Here's how to configure the media source using Composure, the standard graphics utility plug-in for Unreal Engine.

In the World Outliner panel, select MediaBundle-01.
In the Details panel, double-click the icon under Media Bundle to open the configuration panel.
For Media Source, select the media source associated with your video capture card. Make sure the settings are consistent with your camera's outgoing video feed.

Remember to click Apply if you change any settings.
Make sure Is SRGBInput is selected, and then click Save.
In the Details panel, click the Request Play Media button under Media Bundle.
In the World Outliner panel, select MediaPlate, and then select the texture T_MediaBundle-01_BC as the Media Source in the Details panel.
Go to Transform Passes > Chroma Keying > Key Colors, click the + button to add a key color element, and then click the picker button to open the Color Picker.
Select the correct green value, then use the Eye Dropper to add it to the MediaPlate preview.
In the World Outliner panel, select the LiveComp element to view the results.

After configuring the media source, you're ready to import calibration data. For details, see Importing calibration data into Unreal Engine.

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