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Exporting displacement zbrush to max 2k8

Hello everyone this is the very first time I write in this forum, so sorry for my english but I’m not very practice of this language.
I would like to ask a pair of questions, I have searched into this forum but find no answer to my problems.
I usually start sculpting in zbrush with it’s native tools like sphere or zsphere.
I have sculpted lot of stuff, with lot of details (the image is down there), so I want to export those geometry into max 2008 to render with vray and animate those characters.
My problems are those; when I try to export displacement max and put them into the channel of a max or vray materials or into a max modifier called displacement max just crash…without recovery.Instead when I try to export a displacement map with multidisplacement it says it’s low on memory, but i got a dual xeon with 6 gb ram…I tried with lots of size 1024 2048 ecc…and tried with a lots of settings in my memory but no ways.
The second, and last one, is that when i try to make a zmapper of a low res mesh, imported from max or whatever, after have done some sculpting with zbrush it doesn’t create a good normal, creating a wrong unwrap of the object.Why it doesn’t create a normal map to an imported file too?
Thank you in advice.

Attachments

Orc preview.jpg

I can’t help with the Max side of things, for the normal map are you keeping in mind that maps need to be flipped vertically when going between ZBrush and other programs? Other than that, what are the steps that you’re following to create the map? We can’t spot a problem if we don’t know what you’re doing.