John Carmack talks about graphics Page: 1
John Carmack is one of the game industry's most respected figures and during a recent interview for PC Perspective.
Ray-tracing is the talk of the industry recently with Intel readying it in it's Larrabee architecture that should be hot on Ray-Tracing:
There are large advantages to rasterization from a performance standpoint and many of the things that they argue as far as using efficient culling technologies to be able to avoid referencing a lot of geometry, those are really bogus arguments because you could do similar things with occlusion queries and conditional renders with rasterization. Head to head rasterization is just a vastly more efficient use of whatever transistors you have available.
But, I do think that there is a very strong possibility as we move towards next generation technologies for a ray tracing architecture that usesa specific data structure; rather than just taking triangles like everybody uses and tracing rays against them and being really, really expensive.
John also had something to say about consoles. He strongly believes that consoles are now the driving force for developers and that it's getting harder to justify making that extra performance for multi-GPU desktop PC's:
From a developer stand point the uncomfortable truth is that the console capabilities really dominate the development decisions today. If you look at current titles and how they’ve done on the console, you know, high end action GPU based things, the consoles are so the dominate factor that it’s difficult to set things up so that you can do much to leverage the really extreme high end desktop settings.
However, John's still a fan of massivly fast PC systems for developers to really sink their teeth into and predict what's going to come out soon.
As a slightly harsh last word, he's hoping Nvidia didn't pay too much for Ageia...
I really hope NVIDIA didn’t pay too much because I found the whole thing disingenuous. Many people from the very beginning said their entire business strategy was to be acquired because it should have been obvious to everybody that the market for an add-in physics card was just not there.
Perhaps overly harsh but an insight none-the-less
The interview is a long one and certainly worth a read. Take a look here