It looks like you have a fairly rough mesh export there though - at least some of non-smooth look is probably due to that.

Try moving the slider on mesh export more towards the right to get a higher polygon count, and also if you are still getting some longer polygons you might want to determine their length, and put in a distance under "Divide larger than" at about 1/3 of that length to force them to be subdivided further.

Also, when you import OBJ into trueSpace, is there any option available that says anything about using "vertex normals" for the import? If so make sure that is enabled. It kind of looks like it is not using the vertex normals currently.

Also if there are individual surfaces that are adjacent to one another, select them and use Edit/Join to connect them together, that will also improve the mesh generation as well.

- Michael