this afternoon I made a small menu for the lightmapper, what I made bug free last week (bottom right corner). hopefully in the followign days I can assign all the parameters, and make the save/load functions. the 2nd trace length slider is blurring treshold in reality, copy-paste issue and some rearranging is needed...
what I plan to add in future is delete/redraw of static lightmap only under the selected area. it won't be so hard but can be useful (but blurring can cause minor problems on area borders)