View Full Version : Modelling: mirror-weld, where do i go wrong?

04-14-2004, 01:57 PM
In my attempts of growing out of noobhood I have grown more and more fond of tool called FI's OExtender (just like a regular extender except that it works perfectly :D).
I also use it to create sharp edges on my subpatched meshes. I just press "e" for FI's extender, then again and then "t" to move onward, and a beatifully sharp edge is created on my subpatched model. It's all good until it's time for mirroring. Mirroring means merging. Merging means connecting points with virtually 0 distance, which I have previously created to make edges sharp.

Some Illustrations to make things more clear.
Let's say this is the object half I'm trying to mirror. The middle edge contains 2 poly rows created with extender and having 0 width. The result is a perfect sharp corner.
(upper and lower edges of this thing are also "extended" once to make corners sharp)

Obviously, if I mirror this whole thing with "merge" on, mirrored half gets totally messed up.

And merge off is also unacceptable. There is no way I can merge those points later correctly by any means.

So the question is, how do you experienced modellers approach to this issue? Am I going wrong way when extending 0 distance or... This issue caused me a lot of head-ache and manual labour when I modelled my first(probably last) car (http://vbulletin.newtek.com/showthread.php?s=&threadid=21158) .

Thanks in advance for possible attention :)

04-14-2004, 02:34 PM
Two things you can do. First of all, you can't extend 0 distance without those points merging when you run the merge operation. You can still get that edge, just move the points ever so slightly after you extend. As a sidenote, I use bandsaw to get sharp edges.

Secondly, you can run mirror without merge points selected and then select the points you want to merge.

For instance, a lot of times, I have points that merge that I don't want to merge when I run mirror. So I run mirror without merge points, then I just select my centerline and hit m, and all the points that are sitting on the center line are merged to any points they are sitting on.