Meaning what would be a good size poly wise for small models, and likewise with large models?
For instance, I made a lantern [Dunmer Dres bug lantern], and it is at 760 polys/faces atm. If I decide to make the 'paper-like' part of the model transparent and add bugs inside [like fireflies] for the atmospheric mood of the object, the poly count will likely rise a little bit more.
I am hoping it's not too much.
