Just remember that certain technologies are copyrighted, so you would not be able to use something like open GL or a rendering engine like Firefly without paying for licensing of the technology. All your programming would have to start from scratch and you cannot reverse engineer something like Poser itself. In other words, you can't take apart Posers programming, see how it works, and then just improve that, as that is also illegal. What might be a better option is to start a programmers group that licenses some technologies, and to start from there to make add-ons or improvements or plug-ins for an existing program like Poser (as some people are doing with the Python scripts). By the way, from what I understand, Daz Studio will be open source and anyone can contribute to it's development. I have worked on the development of some computer games and you are talking about a two to five year process before you can have a viable program to be worthy of use or competition to an existing program like Poser, so don't even start if you don't have staying power.