1.  Base Geometry - this is the Wavefront OBJ file that represents the figure or prop mesh.  They are stored in Poser's Runtime/Geometries folder (usually).  Sometimes they are embedded in the Poser file for props and newer Poser default content has them stored in the Runtime/Libraries/.... folder along with the Poser file.  For M3, try /Runtime/Geometries/DAZPeople/blMilMan_m3.obj.  That is the untouched mesh.  Most figures are loaded in an initial pose - this differs from the base geometry in that posing deforms the mesh.  If you export Wavefront OBJ from Poser in this state, you will not be pleased with the results of your morphs when applied back in Poser.

2.  Figure library = Runtime/Libraries/Character folder.  In that folder you'll find a bunch of subfolders containing files with extension CR2 or CRZ.  These are the extensions denoting Poser figures (like M3) and the files contain the defining information for the figure (rigging, morphs, textures, and so on).  The CR2 file is plain text - the Wavefront OBJ file for the base mesh used by the figure is referenced there under 'figureResFile'.  The CRZ is a compressed version of the same file - it can be extracted back to a CR2 using WinZip.

3. As noted in 1., Figures usually load with an initial pose - that is with body part bends that are non-zero.

• Go into Poser and load your figure
• Turn off all IK (!) from the Figure menu (Use Inverse Kinematics)
• Go to the Window menu and select Joint Editor.
• Select the BODY body part.
• Select the Joint Editor window and hit "Zero Figure" - be amazed ;)

That is what the mesh looks like before any deformations (bends, morphs) are applied.

UV Mapper won't help you here.  It is mainly for, well, UV mapping which has nothing to do with morphing.

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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