""It will do this for SketchUp SKP format export.

However, most polygon formats don't have anything in their structure to hold camera data, they often only hold geometry. For example OBJ, LWO, and STL are all like this.""

Great!! I think sketchup format is also importable by many software through collada (Google earth kmz format)

I did not realized that OBJ and LWO could not hold camera information, that's sad!

Marc