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t-splines? (#500)
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Tem  
#1 Posted : Thursday, September 6, 2007 4:30:17 PM(UTC)
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Tim & Crew,

Please, look at this technology: http://www.tsplines.com/t-tools/
I would love to make use of it In CU5, or sooner.

Thanks!

Tem
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jol  
#2 Posted : Friday, September 7, 2007 3:42:53 AM(UTC)
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Not quite sure what this does

but I do know our splines need some lovin'

take a look at illustrator, solidworks and so on

splines look lovely .. and what's more .. and here's the thing .. on a complex spline, you can get EXACTLY the curvature you want much more easily
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jlm  
#3 Posted : Friday, September 7, 2007 4:01:49 AM(UTC)
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Tem wrote:
look at this technology

It seems to be a good tool to manage nurbs curvatures and tangencies.
JL
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jol  
#4 Posted : Friday, September 7, 2007 4:10:51 AM(UTC)
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to make good solids - you need good surfaces

.. and for good surfaces you need good splines

Please can we have better splines

Please have a good long look at Illustrator, Pages, Cheetah and so on
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jlm  
#5 Posted : Friday, September 7, 2007 1:55:48 PM(UTC)
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Drawing splines in Pages and in Keynotes is very nice & easy.

By the way, I threw away my Freebox modem, and I'm back able to upload files to this forum.
JL
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tmay  
#6 Posted : Friday, September 7, 2007 4:31:04 PM(UTC)
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Looks like there are plugins available only for Rhino and Maya. Everything else out there to date is either NURBS or subdivision/facet.

tom
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ALBANO  
#7 Posted : Wednesday, September 12, 2007 4:59:59 AM(UTC)
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Tem wrote:
Tim & Crew,

Please, look at this technology: http://www.tsplines.com/t-tools/
I would love to make use of it In CU5, or sooner.

Thanks!

Tem

Please try to incorporate this! It looks as this will be the solving of all tangency-dependent modeling problems we have now!
Would really love to see this! (assuming it works as they claim!)

Thanks,

ALBAN
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nabed  
#8 Posted : Wednesday, September 12, 2007 8:32:36 AM(UTC)
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This seems to be a real winner, especially regarding conceptual design/3D "sketching".
It would also solve a lot of file translation problems, as t-spline surfaces can be seemlessly converted into spline surfaces as well as sub-D surfaces (at least that's what they claim).

If they can live up to how they're describing the technique, this will become a major step in the development of CAD software.

Ciao, Norbert
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Birger  
#9 Posted : Wednesday, September 12, 2007 12:17:27 PM(UTC)
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Ill second that motion, looks very promising. Has anyone used the plug-in in either rhino or maya?
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ALBANO  
#10 Posted : Thursday, September 13, 2007 2:21:52 AM(UTC)
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jol  
#11 Posted : Thursday, September 13, 2007 3:59:21 AM(UTC)
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Very interesting abilities

Whilst we undoubtedly need pushy-pully surface capabilities ..

.. My concern would be can you use 'T Splines' to make something that doesn't look like a peice of used soap ? .. ie with tight surface control !?
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ALBANO  
#12 Posted : Thursday, September 13, 2007 5:47:20 AM(UTC)
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jol wrote:
Very interesting abilities

Whilst we undoubtedly need pushy-pully surface capabilities ..

.. My concern would be can you use 'T Splines' to make something that doesn't look like a peice of used soap ? .. ie with tight surface control !?


If i understand it right you can transform any set of Nurbs surfaces into T-Spline surfaces! In the worst case one would start with a rough set of nurbs definitions and transform it into T-spline to modify the entire shape at once....

ALBAN
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jlm  
#13 Posted : Friday, September 14, 2007 10:02:55 AM(UTC)
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As I understand, the 2 splines are sharing the same normal at crossing point.
This could only help smoothing Jol's soap.
Am I wrong ?
JL
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ALBANO  
#14 Posted : Saturday, September 15, 2007 9:54:35 AM(UTC)
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jlm wrote:
As I understand, the 2 splines are sharing the same normal at crossing point.
This could only help smoothing Jol's soap.
Am I wrong ?
JL


Not sure about this! I dont want to defend a technology I dont really know. But you can have creases with control and it seems possible to translate tspline surfaces into nurbs and vice versa without loss of information.
Maybe I got it wrong?!?!
Is there someone out there using Rhino besids Concepts? There is a 14day trial plugin for Rhino.......please test it!!!!! :)

ALBAN
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Tem  
#15 Posted : Saturday, September 15, 2007 7:00:07 PM(UTC)
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From using Rhino I can say that there was a way to "weight" nodes/points on a NURBS surface. This allowed me to loosen/tighten inter-surface transitions, uhmm...make the surface smoother / bulge less, or more. In this way the SOAP effect could be reduced. However that was all for NURBs surfaces. I do not know if T-Splines have this capability. I know that with polygon modeling there is a way to control how soapy ones model is too. The maths are out there, too far out there...
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