Hi! I am currently working on a Modelmanager. But it is a complex topic i think, because i want to load some fileformats and have also a support for animations. And maybe the hardest thing is, that it should be very user-friendly. As I have seen, there are two generall methods of handling filetypes: a) Include support for different filetypes in the engine/demo b) Make an exporter for each filetype in an own filetyp So whats in your mind the best way? You also could give me urls of other projects like animation libs,... and I will look at them, how they do this. Thanks, Christian