Choose your operating system:
Windows
macOS
Linux
Once you installed the Datasmith Exporter Plugin for Rhino, you will have an Unreal Datasmith (*.udatasmith) filetype available to you when you save or export a scene.
Follow the steps below in Rhino to export your scene using this new filetype.
From the Rhino File menu, select either one of the following options:
Save As: A *.udatasmith file is created containing all visible elements.
Export Selected... : A *.udatasmith file is created containing all the selected elements. Layers containing no selected elements are not exported.
Export with Origin... : A *.udatasmith file is created containing all visible elements. The scene exports with the specified position offset.
In the Export window, select the Unreal Datasmith (*.udatasmith) option from the Save As type drop-down list.
Browse to the location where you want to save your exported file, set the File name, and click Save.
End Result
Your .udatasmith file should now be ready to try importing into Unreal. See Importing Datasmith Content into Unreal Engine 4. If your data needs additional cleaning, merging, or other modifications during the import process, see Visual Dataprep.