While singleplayer on consoles is 30 frames per second so they can have "30 demons crawling all over," multiplayer will kick it back up to Rage's 60 FPS.
"...as soon as Rage ships, the core tech team moves over to start making things happen on the Doom 4 project," revealed id's John Carmack, the studio's technical director.
"There's me and the systems programmer types that have been on Rage for so long. We're going to move over to the Doom team and a lot of resources are going to migrate over there." It's how a big studio like them must operate now, he explained.
"The only thing I've really talked about on Doom 4, technology-wise, is that we did make the decision that...well, my biggest pride and joy about Rage is that I won the fight for 60 frames per second on there, but it involves significant trade-offs."
Those 'trade-offs' are not having huge numbers of enemies on screen. "You can't have 30 guys crawling all over you at 60 frames per second at this graphics technology level because it's painful. It's a lot of effort to do that," explained the veteran programmer.
"But, we did make the call that for Doom 4, the single-player is going to go 30 frames per second on the consoles. So we can have 30 demons crawling all over you on there. But the multiplayer is still going to be 60 frames per second, so it has the quality feel that Rage has." Are you looking forward to Doom 4? It releases on Xbox 360, PS3 and PC.