headus 3D tools

[johanz128]

So I got a 3x subdivided mesh in 3ds max 2010 and was wondering how can I uv it using this tool? Uv-mapping low res mesh in max but then subding it results in bad stretches and other unwanted stuff, how will this work with uv-layou?

[johanz128]

It seems that you can do something similar from maya, but how do I subD my model in maya so I can export it to work with uvlayout? I got no knowledge in maya.

[headus]

You should be able to load the unsubdivided mesh into UVLayout with "SUBD" selected in the import options. That adjusts the flattening to take into account future subdividing.

Phil

[johanz128]

I exported the "cage" mesh, imported it into uvlayout as subd, uv mapped it and then imported back into max. But after dividing it, it produces bent checkers, which is bad.
And I noticed when I import with SubD, the mesh is different from simple poly.
I watched that subD video, but I can't even preview it in uvlayout, I press S but nothing happens.

[headus]

"I press S but nothing happens."

The "S" key to shade the subdivided surface only works in the "3D" view, not the "Ed" view. If even thats not working, which version on UVLayout are you using?

"when I import with SubD, the mesh is different from simple poly. "

Yes, that's correct. When loaded as SUBD, you see a representation of the subdivided surface, not the cage.

"after dividing it, it produces bent checkers,"

Can you send me a picture of that? UVLayout only supports Catmull-Clark subdivision, and I dont know what Max does ... a picture might help.

Phil

[johanz128]

Here I added screenshots of how it looks.
I uv-mapped them in poly mode.
If I uv map them in subd mode, then the geometry in uvlayout does not look the same as the original. While at the same time it saves the obj as original, which produces unfitting uvs.
-
Oh god, don't tell me the images are too big.

[headus]

If that's a "before and after" shot of smoothing in Max, then I'd say the problem was with Max, not UVLayout. Does it do the same thing if you use Max's tool to create UVs?

Phil

[johanz128]

Yes it does that even if I map it in max. That's why I was interested in this tool, maybe it could have done something
If I import my obj as SubD into uvlayout, is there a way to get exported model the way it is in uvlayout? Because if I save the new uvs, geometry does not change. But I guess it can't be done/

[headus]

Yeah, I dont think UVLayout can help in this case. It looks like Max is doing something odd on the UV seams when its smoothing that mesh; maybe there's some options you can change in the Max to fix that?

Phil

[johanz128]

On a bit unrelated note, how do I select edge loop(the yellow line)?
I read all the shortcut pdf and didn't find how to.

[headus]

You cant select the yellow cut line ... its just an indicator of where the polys get cut when you detach the shell with "Enter".

Phil