I'm trying to make an object I made in maya become inside out.

I am making a cave for my game design class and I made the whole thing one object.I would like to know if there is any way to turn it inside out or something because when I put it into unity the outside can be seen but not the inside (the important part), or should I start over and just make each part individually?[5865-cave+entrance.jpg|5865]

Not sure if I understand you correctly, but maybe you mean that your polygons/triangle are only visible from one side? In that case this is normal behavior and tools like 3ds max and Maya hide that from you. Search the forums in regards to double sided materials, like this one here: http://forum.unity3d.com/threads/21778-Double-Sided-*Material*?p=146928&viewfull=1#post146928