Maybe out of topic
For those who use it under all kind of linux system:
Forget about any ppa, synaptic or whatever repository. Usually don't work or don't work correctly for a lot of reasons.
That's not the fault of SH3D developer BUT the distribution managers.
At this times the space is no more a problem for decent programs.
Use the installer version from this site and You will be more happy.
e.g.I have a <60G SSD for all system and programs (root, home & swap);
SH3D have 140MB + a lot of library and plans all at a half of an ancient movie.