logo
NOTICE:  This is the new PunchCAD forum. You should have received an email with your new password around August 27, 2014. If you did not, or would like it reset, simply use the Lost Password feature, and enter Answer as the security answer.
Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
Huge Object Files (#3828)
Options
Go to last post Go to first unread
Previous Topic Next Topic
joev  
#1 Posted : Monday, June 27, 2011 1:01:19 PM(UTC)
joev

Rank: Senior Member

Joined: 2/16/2007(UTC)
Posts: 144
I'm exporting files to OBJ and they are coming out in the 500 Meg range. As you can imagine these files are choking the programs I am attempting to bring them into. Is there anyway to control the size or settings for OBJ files?

Thanks,

Joe

Shark 966
Back to top
WWW
joev  
#2 Posted : Monday, June 27, 2011 1:39:39 PM(UTC)
joev

Rank: Senior Member

Joined: 2/16/2007(UTC)
Posts: 144
I like when I answer my own question! :)

Set the display to a lower setting. I went from Super Fine to Fine and that greatly reduced the file size. An option like the Rhino export would be nice -- Rhino gives you a slider to set the amount of polys when exporting to OBJ.
Back to top
WWW
Tim Olson  
#3 Posted : Thursday, June 30, 2011 11:51:48 AM(UTC)
Tim Olson

Rank: Senior Member

Joined: 2/2/2007(UTC)
Posts: 5,447
United States

Was thanked: 499 time(s) in 353 post(s)
Joe

You can control the number facets going to OBJ by:

1. Select the object and do a Edit:Change Object type.
2. Select mesh.
3. Adjust parameters to your liking, hit update to find out how many facets your parameters create.
4. When you get the desired facets. Hit CANCEL!

Yup, hit Cancel. This will abort the model from being converted to a mesh, but leaves the facet display list attached to the model. When you export to OBJ it uses the facet display list currently attached to the model.

OBJ is a nice format as it includes normal per vertex. You don't need as many facets to make an object look smooth. Plus the normals are calculated directly from the underlying NURBS so they are precise (Not an average of adjacent normals).

Tim
Tim Olson
IMSI Design/Encore
Back to top
joev  
#4 Posted : Thursday, June 30, 2011 10:52:27 PM(UTC)
joev

Rank: Senior Member

Joined: 2/16/2007(UTC)
Posts: 144
Thanks for the tip Tim! I'll be using it this weekend!

Joe
Back to top
WWW
slipstick  
#5 Posted : Saturday, July 9, 2011 4:35:03 PM(UTC)
slipstick

Rank: Junior Member

Joined: 10/17/2009(UTC)
Posts: 3
On this subject, is there a way to quadrify flat surfaces? Over at Turbosquid and Renderosity, they like models with quads, and as few triangles as possible. And don't even mention n-gons.:mad:

I'd like to build stuff and render it in Carrara.

MOI can export with quads and triangles, but I don't want to fork over $300 just for the export feature.

In other words, if I have a cube with a hole, and convert to mesh, the flat surfaces are triangulated. Is there a way to specify that the flat surfaces be quads?

By the way, I am using ViaCAD 2d/3d. Does Shark have this ability?
Back to top
Tem  
#6 Posted : Thursday, July 14, 2011 12:25:26 AM(UTC)
Tem

Rank: Senior Member

Joined: 2/21/2007(UTC)
Posts: 386
Man
United States

Thanks: 6 times
Was thanked: 3 time(s) in 3 post(s)
CANCEL? Why not "apply new mesh settings" or something like that? Cancel suggests not going forward with the work you just did. Could this change sooner than later?
Back to top
WWW
Tim Olson  
#7 Posted : Saturday, July 16, 2011 1:12:11 PM(UTC)
Tim Olson

Rank: Senior Member

Joined: 2/2/2007(UTC)
Posts: 5,447
United States

Was thanked: 499 time(s) in 353 post(s)
>>CANCEL?

Otherwise it will convert your surface or solid to a mesh object.

Tim
Tim Olson
IMSI Design/Encore
Back to top
Tem  
#8 Posted : Thursday, July 21, 2011 12:39:30 AM(UTC)
Tem

Rank: Senior Member

Joined: 2/21/2007(UTC)
Posts: 386
Man
United States

Thanks: 6 times
Was thanked: 3 time(s) in 3 post(s)
I see. So, is there a way to separate the process ( an additional button or something similar) to make either a mesh or attach the facet display to the model for export only?
I think this would help to improve exporting of mesh models/surfaces from NURBS. It would be a good feature to add.
Back to top
WWW
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF.NET 2.1.2 | YAF.NET © 2003-2024, Yet Another Forum.NET