Hi Stefan, no I don't plan on it being required. The way I'm working to set it up is that if you have a GPU with a lot of memory on it, MoI will use that memory to speed up drawing to help with higher complexity models. If you don't have a whole lot of GPU memory then MoI would work the same as it currently does.

The difference is that MoI currently sends all the polygons to draw from main system memory over to the GPU dynamically for every screen draw. This consumes little GPU memory but when there's a lot of data the transfer time becomes significant. The potential change will be that if there is a lot of GPU memory available I'll send the data over once and keep it there to avoid the transfer time.

MoI v4 will require a somewhat more modern card than v3 and prior did, but I'm talking here about something say within the last 6-7 years or so. V3 supported cards all the way back to the original first GeForce and Radeon 8500 cards which are very ancient now. V4 will need something more modern than that since it will use Direct3D11 on Windows 7+ and OpenGL 2.1 on Mac 10.8+ but these are modest requirements.

- Michael