Those features look immensely useful and productive compared to zsphere and what not. They might be competing with autodesk for a 3D modeling package in a couple years o.o
This is a valid function, but Autodesk added doesFileExist function a few versions ago. You're script is an excellent example. I've never used file encryption.
Yep Autodesk got a hold of it when they bought Softimage, they quickly released it as a plug-in to people on 2010 subscription and then fully integrated and released it with 3dsmax 2011.
Thank you for your answer. About photogrammetry: Agisoft, or are you using the Autodesk one that does the render for you on this cloud thing? (or another one?)