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Re-Importing OBJ's goes wrong

ZBrush Usage Questions
#1

Hi,

I just realize I have been visiting this forum for quite a while, and this might be my first post hehe. Well here goes:

Software: 3dsmax2008, 3dsmax2009 and Zbrush, Vista64.

Sculpted a head from a very rough base mesh in Zbrush, retopologised and projected to an adaptive mesh so I got all my detail back on a new lo res retopo model with good topology, no problem so far. I need UV’s, so I export the retopo’s LVL1 to OBJ, load into 3dsmax, do my uv work as I always do, save as OBJ with uv’s to inject them back into the retopop LVL1 model in Zbrush and do my baking. I’ve done this flow quite some times without problems, so 3dsmax and Zbrush’s im/export settings etc should fine.

Problem: When I import the uv’ed retopo model back in Zbrush while my non-uv’ed retopo (with all the subd levels, but set to LVL1 where I left it) model is the active tool, something weird happens. Without any notification, the OBJ I load is put into a new tool which then is set active, thus not injecting the changes in the tool that was active before. Vertex counts seem the same, I don’t get a message about incompatible models, nor do I get exploding models due to changes in vertexID’s. I’ve tested this flow with this model with simple test morph targets, but the same result. Wheter I try it with 3dsmax2008 or 2009, no change.

For some reason, the active tool doens’t accept anything when I import.

Thanks.

#2

no clue, sorry. Can you post up a quick obj and ztl that you’re using (small one). I can test to see if it is happening to me as well. Or you can test on another machine.

From the sounds of it, it is your Zbrush. But you never know…and Aurick probably will, all wise and whatnot.

Anyway, glad I could help…wait…

#3

Thx for the reply goast666. I’m rechecking the model to see if there aren’t any stupid retopo errors (floating vertices, non quads…). Next week I’m away on business, so I’ll only be checking back in into the forum the week after and upload the files then.

#4

Think I found the problem. There seems to be a difference in the OBJ im and erpoters between 3dsmax 32 and 64 bit? :rolleyes: And I just rencently made the switch to 64 bits.