No Valid Objects

We consider only closed polysurface objects from Rhino. If you encounter this error, it means we could not find any closed polysurfaces in your model.

if you massings consist of extrusions, you can convert them to polysurfaces by using the ConverExtrusion command. https://docs.mcneel.com/rhino/7/help/en-us/options/general.htm#ConvertExtrusion

• You can select all extrusions by using the SelExtrusion command.

• With all extrusions selected you can use the ConvertExtrusion command with the DeleteInput option.

if your massings consist of meshes, please rebuild them as closed polysurfaces.