Hi Michael,

> It will happen any time the surface is shown as a shaded display - it would only not happen in a viewport if the viewport was showing a
> wireframe display with no shading in it at all.
> For example if in Rhino you switch the viewport display from wireframe to shaded, you will see a message that says:
> "Creating rendering meshes... Press Esc to cancel"

Ah- I see. I did not know that.

> Just make sure you are doing the import properly - you need to use a format that supports vertex normals like OBJ, and if there is an
> option for reading in vertex normals, make sure that option is enabled.
> If you are using XSI, that's an option called "Import Normals as User Normals", make sure it is turned on.

I did not know about this either. The rendering looks exactly like I wanted it now.

It seems this whole discussion became so lengthy because of my total lack of knowledge in the NURBS field, I should have done some searching on the forum. Please accept my sincere apologies. Looking back now my questions were pretty stupid.



thanks,

Sven