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Mesh to NURBS conversion - What is the best tool(set) for mesh to NURBS conversion?
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Metin Seven  
#1 Posted : Friday, November 24, 2017 2:55:53 AM(UTC)
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Hi,

I've been viewing these mesh to NURBS conversion videos:

Video 1

Video 2

And I'm wondering what I should buy to be able to perform such conversions? I currently own ViaCAD 2D/3D v9 for MacOS.

The quad mesh preparation is no problem. I own both 3D Coat and ZBrush for quad retopology. Having said this, a successful method to convert triangular meshes to NURBS would be fabulous, if that exists too.

Many thanks in advance for your help.

Regards,

Metin
visualization • illustration • animation • 3D (print) design — metinseven.com
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thanks 1 user thanked Metin Seven for this useful post.
GARLIC on 11/24/2017(UTC)
digitalphaser  
#2 Posted : Friday, November 24, 2017 2:20:08 PM(UTC)
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There are many solutions to this problem. But usually this pleasure coast a lot of money. The simplest way for you is viaCAD Pro/SharkCAD + PowerPack Pro.
Some CAD editors are able to do it too. There is also a specialized software. For example: SubD2CAD or this small not expensive utility RESURF - OBJ mesh to solid. For a while I used it. Although it looks obsolete but it works well enough with a simple and clean quad mesh.
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Metin Seven  
#3 Posted : Monday, November 27, 2017 4:02:56 AM(UTC)
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Thanks for your reply, Digitalphaser, appreciated.

Is Powerpack Pro also compatible with ViaCAD 2D/3D? If not, what would it cost to upgrade my ViaCAD 2D/3D V9 to the latest ViaCAD Pro + Powerpack?

Currently I'm using MoI 3D + Max Smirnov's ImportObj and Subdivision plug-in commands to convert an all-quad polygon model to a solid, but the downsides to that workflow are:

• It only works properly in the case of relatively low-polygon models, because every quad poly is converted to an individual NURBS patch.

• There is no proper surface continuity when triangular polygons are present in the model.

Regarding the other tools you mentioned: I'm afraid they're both not available for Mac OS.

Thanks,

Metin

Edited by user Monday, November 27, 2017 4:05:20 AM(UTC)  | Reason: Not specified

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digitalphaser  
#4 Posted : Monday, November 27, 2017 8:07:12 AM(UTC)
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Originally Posted by: Metin Seven Go to Quoted Post
...Is Powerpack Pro also compatible with ViaCAD 2D/3D? If not, what would it cost to upgrade my ViaCAD 2D/3D V9 to the latest ViaCAD Pro + Powerpack?..

I do not know exactly. In my opinion you can find the detailed information here: http://masterviacad.com/store/index.html
Originally Posted by: Metin Seven Go to Quoted Post
...

• It only works properly in the case of relatively low-polygon models, because every quad poly is converted to an individual NURBS patch.

• There is no proper surface continuity when triangular polygons are present in the model.
...

It is partly right for PP Pro too. The low- mid-poly models(mostly quads) are best converted to solid. But good mesh up to 1,000,000 quads is also not a problem for PP Pro.
It is the maximum that I tested. But if I do a retopology of complexe model, I try not to exceed 200,000 polygons.

You can see some examples here: http://masterviacad.com/powerpackoverview/styled-50/page35.html
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digitalphaser  
#5 Posted : Monday, November 27, 2017 8:40:37 AM(UTC)
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A small experiment.
I took a model with a not very clean topology. Each part is up to 70,000 polygons (mostly quads and bit tries). PP easily cope with this task.
digitalphaser attached the following image(s):
pp1.jpg (78kb) downloaded 2 time(s).
pp2.jpg (61kb) downloaded 2 time(s).
pp3.jpg (91kb) downloaded 4 time(s).

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