I wanted to update tigers munchy mod by adding teamcolor to the textures. To do so I wanted to convert all the jpg textures to png ones. I used this command:
./start_megaglest --convert-models=/home/tscharn/.megaglest/techs/munchy_tt/factions/monsters/units/defense_tower/models/dftsit.g3d=png
it just crashes everytime I try it :-/ ( sometimes it taks a while until crash )