Hard Aurface Modeling Questions of a NOOB

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
  05 May 2011
Smile Hard Aurface Modeling Questions of a NOOB

Hi!

I am new to the forum and new to 3d modeling…

I am doing mostly hard surface modeling with 3Ds max and then I am interested in 3D printing the models to make plastic models in scale of tanks or fantasy…

But I have some problems…

I would like to know how can I sub divide my object without smoothing it? Because I want to import my hard surface model to ZBrush and add there the weld seams.

Here is one of the Project I am working on T-40 light amphibious tank.





Here is the hull where I want to add weld seams…



Thank you!

I am looking forward for your help!
 
  05 May 2011
I'm assuming you mean..."when i subdivide my mesh in zbrush it turns to a smooth surface instead of remaining hard edged"

If so then you need to add support edges (selected in red below) the outpout of the subdivided mesh will be hard edged as shown with the green check mark.

You could also try the crease option in zbrush before subdividing, see if that helps.

Another option would be to assign smoothing groups to your mesh and tick the "use smoothing groups" within the subdmodifier, collapse the mesh and export that to zbrush, the draw back of course is you lost your low poly cage.

__________________

Last edited by Psyk0 : 05 May 2011 at 11:42 PM.
 
  05 May 2011
Thank you for the reply Psyk0 !

Yes that exactly what I mean, when you subdivide an object at ZBrush its like doing a Turbosmooth modifier in 3Dsmax…

You have to have a lot of geometry close to the edjes to hold up its detail and retain its sharp edge (as you show in your example) ….

Isn’t there an option to add this geometry automatically without having to connect and weld a ton of vertesies….

I mean is there a way to automatically subdivide my odject and increasing its polygons, but without smoothing it at all?
 
  05 May 2011
Yes, like i said earlier...

Quote: You could also try the crease option in zbrush before subdividing, see if that helps.

Another option would be to assign smoothing groups to your mesh and tick the "use smoothing groups" within the subdmodifier, collapse the mesh and export that to zbrush, the draw back of course is you lost your low poly cage.


If you need more precision i'll make a quick how-to.
__________________
 
  05 May 2011
Simply deactivate the "Subdivide Smooth Modifier" in ZBrush before subdividing the model ("Smt" button in the Tool -> Geometry menu).

You should add some additional edge loops to your model though before you import it into ZBrush. Make sure all polygons are as equilateral as possible (have 4 edges of equal length). Avoid elongate/ drawn-out polygons. You will not be able to sculpt on those without producing unwanted artifacts.
 
  05 May 2011
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright ©2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 08:35 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.