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View Full Version : Symmetry is gone after subdividing :(

javierdl
06-28-2009, 07:34 PM
Is there anything that can be done to get it back or avoid this to happen?
First I spent over 3 hours just moving back and forth between 3ds Max and Mudbox, fixing the topology everytime Mudbox added a new edge somewhere (making the mesh no longer symmetric). And now when I finally got it, as soon as I subdived it, it tells me it's no longer symmetric again!.
If there is no way around this, what would you Mudbox experiece artists would do?
Would you continue just working on one half and then delete the other half in your regular 3d software, and make it symmetrical again?
Or what? :shrug:

Using M2009.

Thanks,

JDL
oglu
06-29-2009, 10:44 AM
may i see the model...
sounds strange...
javierdl
06-29-2009, 03:50 PM
Thank you so much for replying Oglu :)

Here are a couple of images, I hope they'll say enough:

Level 0 - Symmetry found, no problem here.
http://a5zi3w.bay.livefilestore.com/y1p5h9Ja5HC4CF_h6flSFsRtkWdLYSzPp6nV166byFooQWx-xG2poT1-Ue_qkLrcibGiykBTKfeTK2-oy6We7YN9yNhJjH3zbBq/NoSymm02.png

Level 1 - Symmetry lost. 5714 polys
http://a5zi3w.bay.livefilestore.com/y1poxXR7iyUn0NmewCwiSco95mWdmwTA1Q1-CZyv9Bc0jtcyzutOZ7CUuGstDc7E57MM3C0CkiDnOiVFUNS2CBOJiK3oKE1B0xX/nosymm.png
oglu
06-29-2009, 04:34 PM
your model needs a edge loop around the middle...
sry but your meshflow/topo isnt clean... you need a clean quad mesh...
javierdl
06-29-2009, 05:26 PM
I see.
It actually had it before, but it had at least a couple of triangles as a result, reason why I removed the edge, so that the triangles could be a quad instead. I guess I'll put that edge back :shrug:

Thanks Oglu :)

JDL
javierdl
06-29-2009, 06:22 PM
Ok, I added the missing middle loop. Mudbox still decided to add edges of his own once I did the first subdivision though :banghead:
This time I just exported the subdivided mesh and made it symmetrical by deleting the most complicated half, using the Symmetry modifier in 3ds Max, collapsing and exporting back to Mbx.
Now I have been able to subdivide it 4 times without a glitch :beer:

I suppose I might use the original mesh as a low poly target once I have the normal map ready.

JDL
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