Hard Edges on a Smooth Surface

[GrogMcGee]

just bevel the corner edges not the whole loop.

[TheThidMan]

just bevel the corner edges not the whole loop.

Won't that just create pinching??

Really you just have to reorganise your topology. Try looking at other people's human face modelling to see what i mean (EDIT: actually i think car modelling might be a better example). Rather than add in specific new edges to make a single corner sharp, you need to make the edges flow in such a way as to make them close at one point and distant at another.

Alternatively, if you don't want a slightly smoothed corner and you just want a super sharp corner, you can "Smooth by smoothing groups" or similar, which is an option in meshsmooth and turbosmooth modifiers. You may need to reasign polygon smoothing groups to get this to work as you want though.

[-Nova-]

You need more base geometry to maintain the curvature.

[GrogMcGee]

watch each of these videos http://digitalapprentice.net/Community/index.php?option=com_content&task=view&id=67&Itemid=154

[IronWarrior]

Thanks for all the responses, guys!

just bevel the corner edges not the whole loop.

Not quite sure what you mean...but I've tried alot of different bevels and chamfers and it usually creates pinching.

Won't that just create pinching??

Really you just have to reorganise your topology. Try looking at other people's human face modelling to see what i mean (EDIT: actually i think car modelling might be a better example). Rather than add in specific new edges to make a single corner sharp, you need to make the edges flow in such a way as to make them close at one point and distant at another.

I s'pose I'll look at some car tutorials, but I was hoping I was missing something simple...

Alternatively, if you don't want a slightly smoothed corner and you just want a super sharp corner, you can "Smooth by smoothing groups" or similar, which is an option in meshsmooth and turbosmooth modifiers. You may need to reasign polygon smoothing groups to get this to work as you want though.

I like having the slightly beveled corners, and I find it's really inefficient and time consuming to work with Smooth by smoothing groups...


You need more base geometry to maintain the curvature.


Not quite sure what you mean here, I know I need more geometry, but I want one of my curves sharp and the only smooth.


watch each of these videos http://digitalapprentice.net/Commun...d=67&Itemid=154 (http://digitalapprentice.net/Community/index.php?option=com_content&task=view&id=67&Itemid=154)


I did already, but I don't remember it covering this sort of sharp/smooth stuff.

[GrogMcGee]

:curious: ummm well the videos do cover those cases (in fact it covers all of the cases ... since almost all hard surfaces involves some form of what you're doing...) ... you can see your case in the screen shots used for the title screens for part 1 and part 2.


http://lh4.ggpht.com/_kyuBN4GsaYo/SpF-spHg6pI/AAAAAAAADLs/xudI99JhicY/s800/Fullscreen%20capture%2023082009%2013713%20PM.jpg

becomes
http://lh4.ggpht.com/_kyuBN4GsaYo/SpF-tUpBu_I/AAAAAAAADLw/1vHKmX51h1k/s800/Fullscreen%20capture%2023082009%2013719%20PM.jpg

[IronWarrior]

Awww...how did I miss that...I chamfered it properly and moved some vertices...and no pinching! I can move on with the model!

Thanks very much for all the help guys!

[slipmaggot75]

Inside of Maya when hitting 3 on the keyboard it shows your smooth mesh preview mode. What you can do is under proxy in the polygon menu choose what edges you would like to preserve as being hard and crease them to the maximum which is 10. That will preserve your hard edges on a smoothed mesh. Beveling will work also but i belive this is a quiker and more affiecient way.

[GrogMcGee]

Crease isn't really a very good solution:
http://lh4.ggpht.com/_kyuBN4GsaYo/SpWuKVeh_4I/AAAAAAAADOA/4HIQ2gWZs24/s800/Fullscreen%20capture%2026082009%2055003%20PM.jpg
left bevel, right crease

crease will give a hard unnatural edge. It also doesn't transfer across file formats, since it's not geometry.

[slipmaggot75]

ok i see what you mean i think it just depends on how you want to use it. I usually crease for going from maya to zbrush. It will convert over and will become actual geometry if you convert smooth mesh preview to geo under the convert menu in maya.

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