lenoxmo, I wouldn’t try to utilize the importer to “clean up” your imported mesh data. This can (and should) be done quite easily within blender. First of all, I wouldn’t be too concerned with triangular faces within your models, unless you intend to either deform them in an animation or subsurf them via the modifier. I would think that you’re not likely to need to do either with architectural models (inferring this from some of your other posts, sorry if not the case.) However, if you feel you must have quads over tri’s, then blender has a function built in to convert them (alt-J).
A couple of other things that you will likely need to do on any CAD-imported geometry:
- Enter edit mode (“tab” key toggles), select all verts (“a” key toggles), “w” key menu -> remove doubles. (Do this BEFORE converting to quads!)
- While still in edit mode, I usually recalculate the normals outside (ctrl-n) as I’m usually dealing with fully enclosed 3D models imported from solids created in CAD.
Whether to set Smooth or Solid also becomes a challenge for this kind of thing, but most likely won’t often affect archi work like yours.
There are other tricks to getting your meshes looking like you want them in blender which you’ll learn over time, but this should get you started. Blender is very powerful & flexible as a modeler / mesh editor, so don’t shy away from using it after you’ve imported. (I know I tend to be biased toward using my familiar CAD app to do as much of the modelling as I can prior to importing - simply because it can be more understandable, therefore faster.) Blender’s techniques are very different, but once you understand, can accomplish much.