add smooth weighting options
add smooth weighting options

schuhschuh/MIRTK,BioMedIA/MIRTK,stefanpsz/MIRTK,schuhschuh/MIRTK,BioMedIA/MIRTK,schuhschuh/MIRTK,stefanpsz/MIRTK,BioMedIA/MIRTK,stefanpsz/MIRTK,stefanpsz/MIRTK,schuhschuh/MIRTK,BioMedIA/MIRTK