Hi Anya, no there isn't really any straightforward way to convert an entire model with many parts into just one single TGA texture map.
Fundamentally the sculpt map is a type of object that is kind of like a rectangular rubber sheet. It always has a kind of rectangular layout to it, and different points along the sheet can be stretched into different 3D locations to form a shape.
An OBJ file is not structured like one single sheet - usually OBJ files are made up of many different little polygons, without the restriction of being arranged in a sheet type layout.
If you create one single surface in MoI, like the result doing a loft or a sweep, then that single surface does have a rectangular layout to it, and it is this kind of single surface that the 3dm2sculpt conversion program is really targeted at converting over to a sculpt map.
If you use other tools such as booleans or trimming, that will make an object that is made up of many trimmed surfaces instead of just one single surface sheet - something like that will not convert very well over to a sculpt map.
Hopefully in the future Second Life will support more general polygon mesh structures like a regular OBJ file has. It is difficult to create a complex object just out of one stretched rectangular sheet.
- Michael
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