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G2Art  
#1 Posted : Thursday, November 12, 2015 4:19:17 PM(UTC)
G2Art

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Hi,

I used SubD modeling to create a mesh that has zero thickness with the intention of converting it to a NURBs surface and then thickening it to a solid.

The mesh to surface conversion went well but the thickening of the resulting surface failed.

The attached image shows the mesh I worked with at SubD level 1. Before converting it to a surface I went to level 4.


Since I need to create organic shaped flat ribbon shapes, I am assuming that starting with a zero thickness SubD mesh then converting it to a surface then thickening it would be the best way.

Am I right?

Or is there a way to "thicken" a zero thickness SubD mesh and then convert it directly to a solid?

I am using Shark FX v9 with Power Pack Pro.

Thanks.

Edited by user Thursday, November 12, 2015 4:24:03 PM(UTC)  | Reason: Not specified

G2Art attached the following image(s):
Screen Shot 2015-11-12 at 2.05.49 PM.jpg (66kb) downloaded 13 time(s).

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Tim Olson  
#2 Posted : Thursday, November 12, 2015 9:13:33 PM(UTC)
Tim Olson

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Hi Mark

Can you post the subd file? I 'll use your exact file.
Tim

Edited by user Friday, November 13, 2015 4:45:26 PM(UTC)  | Reason: Not specified

Tim Olson
IMSI Design/Encore
G2Art  
#3 Posted : Thursday, November 12, 2015 9:25:10 PM(UTC)
G2Art

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Tim,

The file is attached.

A few minutes ago I discovered that I could thicken the surface created from a nurbed level 2 mesh.

Until then, I'd been trying to do it with a level 4 mesh (as in the attached file).
File Attachment(s):
SubD exercises 2b.sfx (479kb) downloaded 17 time(s).

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Tim Olson  
#4 Posted : Friday, November 13, 2015 4:40:11 PM(UTC)
Tim Olson

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Something else interesting to explore when creating open surfaces, is to crease the corner vertices.

Tim

Edited by user Friday, November 13, 2015 4:41:56 PM(UTC)  | Reason: Not specified

File Attachment(s):
subcreasecorners.sfx (629kb) downloaded 17 time(s).
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crease.png (320kb) downloaded 32 time(s).

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Tim Olson
IMSI Design/Encore
thanks 1 user thanked Tim Olson for this useful post.
G2Art on 11/13/2015(UTC)
G2Art  
#5 Posted : Friday, November 13, 2015 8:48:28 PM(UTC)
G2Art

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It is very interesting, but how do you crease the open vertices. Tim?

I've opened your attached sfx file but I still don't know how to do it.


BTW - why did thickening work on the surface created from the level 2 mesh but not from level 4 mesh?

Is the surface quality from a level 2 mesh going to be as good as that from a level 4 mesh?
G2Art  
#6 Posted : Tuesday, November 24, 2015 7:43:26 PM(UTC)
G2Art

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I suspect it is the rounded corners created by subdividing the mesh that are causing problems with thickening surfaces derived from the mesh.

I trimmed the surface so that the corners are square and not rounded - see the attached image.

The resulting surface was thickened without a problem.

I think that creasing the open vertices in the mesh would also produce good results.

The question is:: how do you crease open vertices, as shown in Tim's example?

If Tim or anyone else would share how that's done, I'd appreciate it.

Mark
File Attachment(s):
Trimmed surface thickened easily.sfx (2,338kb) downloaded 10 time(s).
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Trimmed surface thickened easily.jpg (139kb) downloaded 19 time(s).

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