SubD TIPS & TRICKS...

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Old 06 June 2002   #1
SubD TIPS & TRICKS...

hi
let's start a thread about tips & tricks on modeling methode
specialy the most favorite one SubD surfaces...in MAX
i made this simple box:
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File Type: jpg 02_cage.jpg (25.0 KB, 1973 views)
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Old 06 June 2002   #2
then i didn't add any polygon to it, no edge extrude or face or
vertices added...just twiking some parameter in editable mesh
& then applying meshsmooth modifier, i got this:
could anyone tell that what i did to achive those smooth/beveled
edges from that simple non-beveled box?!
& i must mentioned that i did nothing to mesh-smooth sub level
controls like crease edge or weight of vertices. in fact they don't work like that.
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Last edited by ilasolomon : 06 June 2002 at 02:52 AM.
 
Old 06 June 2002   #3
Pick me! Pick me!

errr, Smoothing Groups?
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Old 06 June 2002   #4
HAHA! yes smoothing group, but i need more detail! there is
a little trick ...
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Old 06 June 2002   #5
um, is it checking the 'separate by smoothing groups' checkbox in meshsmooth, Mr Solomon?
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Old 06 June 2002   #6
POOF!...i'm worried i didn't understand a word of your sientific
article...sorry! more explaination pleasssse!
anyway...my trick is that i applied 2 mesh-smooth afterward!

this is what happend to regular mesh smoothed box:
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File Type: jpg 03_regularsds.jpg (35.4 KB, 1837 views)
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Old 06 June 2002   #7
by smoothing group difination:
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File Type: jpg 04_smoothing-group_difination.jpg (40.5 KB, 1785 views)
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Ila Soleimani
www.ilasolomon.com

"Billions of bilious blue blistering barbecued barnacles!...Cannibal!"

 
Old 06 June 2002   #8
by first mesh-smooth modifier with smoothing-group based iteration we have this:
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File Type: jpg 05_smoothing-groupsds.jpg (30.0 KB, 1726 views)
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www.ilasolomon.com

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Old 06 June 2002   #9
& with second regular mesh-smoothing methode...:
Attached Images
File Type: jpg 06_secondsds.jpg (38.9 KB, 1710 views)
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Ila Soleimani
www.ilasolomon.com

"Billions of bilious blue blistering barbecued barnacles!...Cannibal!"

 
Old 06 June 2002   #10
Dammit! So close... :( Oh well, I guess the chocolate fish goes to someone else...

"Oops, just realized you wanted Max stuff. Well, this might be useful. Dunno how meshsmooth interpolates."

Catmull-Clark I believe, or some variation or that so your advice should be right on the button...
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Old 06 June 2002   #11
">>Actually, I'm starting to develop a new smoothing algorithm that retains volume with low vertex count" ...sounds good, Marc!! Will it smooth ngons?

I read in Dec issue of Computer Arts that XSI 2 has "...a subdivision algorithm that's one of the best we've seen enabling you to use polygons with any number of sides while still generating clean and smooth surfaces."

Can anyone confirm this??
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Old 06 June 2002   #12
I think this thread would be very usefull in understanding of how Sub-d works and your example was very usefull.
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Old 06 June 2002   #13
hope so!
ok this is a more complex test:
this is the original polygonal cage
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File Type: jpg batman_smsubd_polycage.jpg (42.5 KB, 1641 views)
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Old 06 June 2002   #14
now carefuly modify the smoothing groups...& first mesh smooth
by SG:
Attached Images
File Type: jpg batman_smsubd_smooth1.jpg (47.0 KB, 1611 views)
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Ila Soleimani
www.ilasolomon.com

"Billions of bilious blue blistering barbecued barnacles!...Cannibal!"

 
Old 06 June 2002   #15
& with the second mesh-smooth , this time regular SubD:
Attached Images
File Type: jpg batman_smsubd_smooth2.jpg (45.0 KB, 1277 views)
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www.ilasolomon.com

"Billions of bilious blue blistering barbecued barnacles!...Cannibal!"

 
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