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Old 19th November 2007, 12:01 PM   #1
DesignR
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Default Joining halves?

In a different program, I'm used to creating half-shapes and then mirroring the half to boolean them together for a symmetrical final shape. When I try to do the same thing in AC3D the two sides smooth as two seperate objects when I subdivide it. What am I missing?
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Old 19th November 2007, 02:54 PM   #2
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Default Re: Joining halves?

Could it be that you have not joined the common vertices at the "seam"?

Grab each pair (one for each half), which should intersect right at the center line.

Do, in order, a Snap Vertices Together and then Weld Vertices command.

After you've done that for each set of common vertices, Optimize Vertices and Optimize Surfaces.

That, I think, should result in one smooth object.
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Old 19th November 2007, 03:17 PM   #3
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Default Re: Joining halves?

Quote:
Originally Posted by Stiglr View Post
Grab each pair (one for each half), which should intersect right at the center line.

Do, in order, a Snap Vertices Together and then Weld Vertices command.

After you've done that for each set of common vertices, Optimize Vertices and Optimize Surfaces.

That, I think, should result in one smooth object.
Thanks.

I did all you suggested but still got an obvious division, although not as severe as past efforts... (results below). What I'm trying for is a straight-across center area.

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Old 19th November 2007, 04:31 PM   #4
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Default Re: Joining halves?

It seems that you haven't deleted the surfaces that are now inside your object (they were at the right side of the original one).
You obviously don't need them, and they are producing what you're experiencing with the subdivision.
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Old 19th November 2007, 05:04 PM   #5
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Default Re: Joining halves?

Thank you,... that did it. I'm used to a solid modeler, so this is a whole new way of thinking.

Are there any tutorials that address this sort of thing?

Thanks again.
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Old 19th November 2007, 05:07 PM   #6
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Default Re: Joining halves?

I'm sure any tutorial on the basics of modeling would explain that in a section on mirroring.

As far as perhaps still seeing an obvious division, you might, after joining and welding, selecting contiguous surfaces and combining them into one. That will certainly "flatten them out", even sometimes if that effect is unintended!!!
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Old 19th November 2007, 05:20 PM   #7
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Default Re: Joining halves?

Thanks.

Again, being a solid-modeler user, that whole knocking out the un-needed center wall idea is something I need to now be aware of.
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