I have not had any luck exporting a successful displacement map from the Mudbox 2009 trial version.
Normal maps pop out just fine, displacements...not so much…
I am doing nothing special here: the basemesh is the default bust from Mudbox and I haven’t touched the model in an external program.

I’ve tried selecting the level 3 mesh, then the highest mesh and tried extracting...this gives me weird results: a near completely black Disp. map (as if it’s using the same model for both target and source). but if i export the level 3 mesh, import it back in: target as low res mesh, source as high, extract....we get the attached image result.

(as an aside) I have used the previous version of mudbox, where it expressly tells the user what level of mesh it is using for the target and source mesh extract...in this version it is gone...I can see why...allows importing of clean meshes for the bake process, but has left me somewhat confused as to the workflow.

can anyone help?

(using 64bit Mudbox)

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When you are selecting the source and target model how are you doing so?

I’ve tried both using the object list, and also using the object picker tool. or more specifically:
1)Using the object list: I select the level 3 mesh from the Head model and make it the target mesh, then I select the highest level from the head model and select that as the source model.
2) using the object picker too: I lower the subdivision level to 3, select the head model and make that the target mesh, then I go up to the high sub div. level and select that with the tool and make that the source
3)export out the level 3 head model, import it back in, using the object picker tool, I select the imported model as the target mesh, then use the picker tool again to select the high res. head mesh for the source…

all these above do not result in a usable displacement map.

I’ve attached another image of a displacement extraction:
The first one (that looks like the normals are inverted on one side) is from an extraction using the imported head model as a target mesh
The second is the result of using the same mesh, but selecting the low and high levels as target and source…

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