Our goal is to have zero pixelization effect on textures in full-HD resolution, so the relatively small location (like 4-5 minutes of gameplay) takes 2 GB of VRAM filled to the top and the only solution to this when we wanted bigger levels was streaming. Besides of idTech-based games (RAGE, Quake Wars) huge scale streaming solutions were not so popular, but now it seems they may come to glory again, cause scanning technologies should become more popular and there’s not just us who may need this solutions.