displacement problems

[Aguz]

I have the same problem. Something strange with displacments. I think I have the same settings as you. Have you solved it?

[Tralen]

basicly i made my head
unwraped it
painted in zbrush
exported back into maya with that option turned off
exported it back into zbrush
made my displacement map using md2 on subdiv 1 with r32 (checked my map and its all red)
convered the .tif file to .map
went back to maya, put in mental ray settings put in the 2.2 and -1.1 and all that rendered and my face explodes every time.

I don't understand why you exported back to Zbrush to create the displacement map. Here are the steps:

1. Make sure your model doesn't have overlapping UVs, seeing your UV map I think it's ok.
2. In Zbrush export your model, while it is at subdivision 1.
3. With the model still at subdivision 1, create your displacement map, no errors here if you're using MD2.
4. Convert the .tif to .map.
5. Go to Maya, make sure you import your model with "Create Multiple Objects" set to false.
6. Set the aproximation editor, and add a subdivision aproximation.
7. Add the displacement to the shader, and link it to your .map file.

Now, I think you did something wrong at step 2, because It seems you exported the model, then opened it in maya, imported it in zbrush and created the displacement, the odds of getting some change in the vertex order that way is pretty high, mainly because your import options at zbrush might merge some vertex. Make sure you export the model and create the map in one go, and you should be ok.

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