how to build a simulation projection

[chen.ebbo]

as the topic ,how to set up a framework for simulation ,is there any demo?

[ulf.schroeter]

Your request is "a little bit" too unspecific for any educated answer. Please specify what kind of simulation you are targeting (land/flight/ship/machinery, single-/multi-player, etc), what are your requirements for visualization (single/multi-screen, CAVE, dome, etc)