Hi PaQ, yeah as various pieces speed up probably memory consumption will be a bigger barrier for you. MoI as a 32-bit program can get up to around 4GB (well in the neighborhood - maybe more like 3.6GB) on a 64-bit OS though, not just 3GB... Also I think that probably implementing an instancing mechanism may actually help out more than 64-bit-ness for a lot of cases.

I certainly understand that you'd like a 64-bit version of MoI, but in order to do it would require a major churn in my development environment needing to switch to a new compiler and updating all support libraries and dealing with various compatibility issues from that. That's going to be very disruptive for me and so I don't think it's going to be likely to happen anytime too soon.

Some previous discussion here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=5172.5

- Michael