Import USD (Universal Scene Description)

The Universal Scene Description (USD) importer reads USD assets as static models or start shapes. It supports the file extensions ".usd", ".usda", ".usdc", and ".usdz" and recognizes the USD node types "mesh" and "cube". The importer can read scenes consisting of more than one USD file, see the USD exporter file structure for more information. Additionally for static models, if the USDPreviewSurface material type is present, they are displayed as CityEngine PBR Material.

Import settings

The USD import has the following options:


Press open a file dialog to select a .usd, .usda or .usdc file to import.

Import as static model

When checked, the file will be imported 'as is' and will not be modifiable by CGA rules. Otherwise, start shapes are created from the provided (if available: textured) polygons, ready to be used with CGA rules.

Align to terrain

When checked, the geometry automatically aligns to the terrain.


Factor applied to the imported object.


Adds the specified offset to the imported object:

  • Center: Sets the offset such that the object is centered on the scene's origin.
  • Reset: Sets the offset back to zero.

In this topic
  1. Import settings