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Problem When Exporting Displacement Maps...

ZBrush Usage Questions
#1

I bring my mesh down to the lowest subdivision level and using the Multi Displacement 2 (Rev C) I use the code for Maya. I go to export the map leaving the default map setting of 2048x2048px…it sends the map out a 512x512px. If I bump it up to something over 5000px, then it sends it out at 2048. Is this just a weird bug with the Zplug? Does this happen to anyone else? Thanks!

…EDIT…OK It was exporting slow so I have my Charecter UVs set on 3 different maps (1.body, 2.Head, and 3.Hands Ears Feet) they are set up in three quadrents of Maya’s UV texture editor. When I go to export the Displacements it saves one out at 1024, and one out at 2048. No head Displacement map though. Do I have to have the UVS set all on one map or something before I take the model from Maya to ZB for the Displacements to export properly? Thanks

#2

It sounds like you may have the mapSizeAdjust slider set to 100 in the Multi Displace2 plugin. Set that to 0 so the maps wil not be rescaled by UV space.

S

#3

OK that sets the maps in equal distrubution. Thanks. But I guess you have to set your UV’s horizontally because I had 2 uv sets that were horizontal and one that was set vertical when I exported the obj. geo out of maya. the 2 that were horizontal exported correctly to let me set the displacement maps, vertical did not. Does this make sense to anyone using Maya>Zbrush? Do the UV sets have to be organized in a horizontal row in Maya when then exporting displacement maps out of ZB? Thanks for your help!

#4

I usually only ever set them up in a horozontal row since it allows me to use the fileIndex function of MD2 to identify what quadrant the map belongs to. I do have old ZTools with a horozontal layout of 2 regions at most… This never caused me a problem : / Not sure what may be happening there.

S

#5

Thanks Scott you have been very helpful! I guess you are right! I did a test with some simple Disp. Maps painted with horizontally set Uvs.
Horizontally the maps all show up as displacements! Vertical is a no-no. That kinda sucks since I exported geo out of Maya with UVs set in the wrong manner and used that as the the model to paint displacements. Is there any way I can transfer that displacement geo to the same model with the UVs set horizontal instead of vertically? Again, I value your help extremely! Thanks! :smiley:

#6

No problem man : )

Just rearrange the UVs in Maya as you like then export the obj again. In ZBrush import the new obj at level 1 and it will update the UVs.

S

#7

But can I keep the zbrush information that I already applied to my model in ZB? Somehow just transfer UV info? I spent a good few hours on it already and it would be helpful if I could.

#8

When you import a new version of the model into level 1 of your existing work, the higher levels remain unchanged. See my post from a few hours ago, found here.

#9

Thank You both so much! :smiley: