So i just bought the universe sandbox and i saw that you can use your own models for planets.
Seeing this, i converted a Team Fortress 2 hat model into .3ds format (which i saw it could convert) and plonked it into the media folder. I then typed in the name and it seemed to be trying to do something but it was all frozen but the task manager didn't say it was "not responding".
I tried again with .obj format but it did the same thing.
Anyone got any help?