Source: http://m.habrahabr.ru/company/wargaming/blog/241083/
Part 1 can be found here.
Part 2 can be found here.
x64 Support
Not so long ago, our artists transferred en-masse from 32-bit Maya 2012 to 64-bit Maya 2014. Since the exporter is almost completely based on Python, there was practically no problem with x64 support. Only the library (.pyd), built on C++, needed some fixing. Currently, the exporter can be used both in x32 and x64 processes, as it itself performs and loads the assembly of the C++ library.


