When you import external assets into Twinmotion, or modify or create custom assets in Twinmotion, you can save them to the User library. By doing this, the next time you want to use them in any Twinmotion project, you can drag and drop them from the User library into the Viewport. There is no need to reimport them or recreate customized assets from scratch.
If you want to save imported external assets in the User library, here are a few recommendations before you import them:
Make sure the assets and materials have meaningful names to make it easier to identify in the Scene graph and the User library.
In your design application, make sure the asset is located at the origin point (0, 0, 0) when you save it.
To save assets in the User library:
To automatically save an asset in a specific folder of the User library, open the folder in Twinmotion before saving the asset.
In the Scene graph, click the ellipsis (...) to the right of the asset.
In the Scene graph menu, select Add to user library.
The asset is copied to the User library.
Saving Custom Materials in the User Library
In the Toolbar, select the Material picker.
In the Viewport, with the Material picker select the object using the material that you want to save.
In the Properties panel, click the ellipsis (...) that appears to the right of the sphere to open the Material menu.
In the Material menu, select Add to user library.
The new material is saved in the User library.