After you add a 3D object to a Motion project, you can exchange it with another 3D object while preserving any parameter changes you’ve made, including animation. This is especially useful if you’re using a 3D object as the source object for a replicator, particle emitter, or other graphic element.
In Motion, do one of the following:
Drag a 3D object file from the Finder onto the layer in the Layers list containing the original 3D object.
Drag a 3D object from the Library onto the layer in the Layers list containing the original 3D object.
When a curved pointer appears, release the mouse button.
The original 3D object is replaced by the new 3D object.
In the Media list in Motion, select the 3D object to replace.
In the 3D Object Media Inspector, click Replace Media File.
In the dialog that appears, navigate to the 3D file that will replace the current source media.
Note: Only compatible 3D files will be selectable.
Click Open.
The original 3D file is replaced by the new source file in the Media list and in any layers in the project linked to the source file.