KeyShot Forum

Archive => Support Archive => Topic started by: lweisz on March 27, 2015, 01:37:30 AM

Title: Import NURBS problem
Post by: lweisz on March 27, 2015, 01:37:30 AM
Hello,
I'm using Keyshot 5, last update 5.2.10
I have a question: when I import a nurb model (from Rhino) into Keyshot, I don't have the choice for Tesselation Quality and Accurate Tesselation (see My import Nurbs windows versus Keyshot import Nurbs windows in attachement), why is that? ,are there some settings somewhere to get that?

Thanks for your help
Laurent
Title: Re: Import NURBS problem
Post by: guest84672 on March 27, 2015, 03:24:47 AM
Because there aren't any polygons in your model. You will need to shade your model in Rhino first prior to the export. This will give you access to the tessellation parameters.
Title: Re: Import NURBS problem
Post by: lweisz on March 27, 2015, 03:52:45 AM
Hello,

I'm not sure to understand what you mean by "you need to shade your model prior to the export"?

Thanks for your help
Title: Re: Import NURBS problem
Post by: guest84672 on March 27, 2015, 04:02:39 AM
Shade the model inside Rhino so it generates the tessellation.
Title: Re: Import NURBS problem
Post by: lweisz on March 27, 2015, 04:12:12 AM
Hi,

When I save the rhino file , I did saved the model under the Shaded mode. Is that what you mean, because if yes, it doesn't change anything when I import it...
Title: Re: Import NURBS problem
Post by: lweisz on March 27, 2015, 04:47:54 AM
Can I send you my model, do you have Rhino? so you can have look. I would need a private email as it is confidential.
Thanks
Laurent
Title: Re: Import NURBS problem
Post by: guest84672 on March 27, 2015, 05:15:04 AM
sure - send it to thomas@luxion.com
Title: Re: Import NURBS problem
Post by: guest84672 on March 27, 2015, 06:19:06 AM
Sorry - I was confused. Rhino file already contain the tessellated information. KeyShot don't do any tessellation, unlike Creo, STEP, IGES et al formats.

If you want to change the number of polygons, you will need to change it inside Rhino.
Title: Re: Import NURBS problem
Post by: lweisz on March 27, 2015, 06:25:58 AM
Ok thanks Thomas, I know what you mean.

Thanks for the help
Laurent
Title: Re: Import NURBS problem
Post by: soren on March 30, 2015, 12:18:13 AM
Note that if you import NURBS data you can render those directly without tessellating your model in Rhino (if you have KeyShot PRO). It is slower, but much more accurate than using triangles.