High Quality Surfaces

Altair Forum User

Hi, I was evaluating Evolve 2015: particularly I was interested in Subdivision surfaces technology. unfortunately, I realized that the quality around the extraordinary points is quite poor. As you can see the zebra lines flow is bumpy. For aesthetic surfaces, this kind of quality is not acceptable. Are you planning any improvement regarding this type of issue?

 

Please find images attached

 

Thanks in advance

 

Giorgio Mandelli

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Altair Forum User

(...) very interesting point Giorgio: tried using Alias (Class A modeling) for half a year (hated it) - grew up with Solidworks & Creo - wanted to switch to a powerful program which has a much more nice interface than Alias has for working with surfaces... (but everyone on the marked seems stucked 10 years ago /emoticons/default_biggrin.png' alt=':D' srcset='/emoticons/biggrin@2x.png 2x' width='20' height='20'>)

- true feature tree/history, solid modeling etc.pp. would be very nict > Evolve seemed perfect

What would you suggest me & is it worth spending the time to 'learn' Evolve (especially concerning the problems you have showed)?

How steep would you sayis the learning curve?

all the best & thanks
peter

ArjunA_22390

Guys,

 

I have sent your concerns to the development team and will post their reply here asap.

 

Thank you for the comments. 

ArjunA_22390

Giorgio,

 

We ran a comparison with other programs offering this feature and found that extraordinary vertices handling is very similar in terms of quality. At the moment this is the best we can achieve with the algorithm being used. The closest competitor to us in this space is Fusion 360. See screenshot for extraordinary vertices.

 

Please let me know if you have any questions.

 

Thank you,

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Altair Forum User

Altair Forum User said:

See screenshot for extraordinary vertices.

 

Hi Arjun,

I think there is some problem because the attached images are missing.

ArjunA_22390

Fusion 360 does not have a zebra mode to analyze surface quality but I exported the file as IGES and opened in Evolve to do the same. I applied zebra lines and have attached the same. The quality of polygonal/subdivided faces will never be as good as NURBS when you evaluate them. This does not mean they are bad. For this reason polygonal modeling is most often not used for production or at least not where surface continuity/quality is imperative.

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