I’m looking for a sandbox where I can upload/import STL or OBJ files (rigid bodies that I can export from a CAD software) for quick interaction testing with gravity and contact.
The idea is lowest friction possible for import/upload so that the time between file export from CAD software to testing of joints and such will be as quick as possible. So things like creating a sandbox template in Unity and then building the game every time would be out of the question.
Any ideas?