Quote:Original post by zedzO...k...Quote:Original post by Sneftel
Cool trick, but the PS3 hardware is laughably ill-suited for the demands of real-time raytracing. It's not going to happen in the next five years except on an ASIC.
what about a top of the line $1000+ intel cpu?
FWIW cell slaughters the $1000+ cpu WRT raytracing
cell illsuited, hmmmm, ild be pointing the finger more at other players :)
Quote:Original post by zedzQuote:Original post by Sneftel
Cool trick, but the PS3 hardware is laughably ill-suited for the demands of real-time raytracing. It's not going to happen in the next five years except on an ASIC.
what about a top of the line $1000+ intel cpu?
FWIW cell slaughters the $1000+ cpu WRT raytracing
cell illsuited, hmmmm, ild be pointing the finger more at other players :)
true though we wont be seeing any major solely raytraced games coming to the ps3, but raytracing is used in practically all games, eg particle collision tests, line of sight tests + for more advanced stuff eg radiosity, gathering etc
Quote:Original post by zedz
what about a top of the line $1000+ intel cpu?
FWIW cell slaughters the $1000+ cpu WRT raytracing
cell illsuited, hmmmm, ild be pointing the finger more at other players :)
true though we wont be seeing any major solely raytraced games coming to the ps3, but raytracing is used in practically all games, eg particle collision tests, line of sight tests + for more advanced stuff eg radiosity, gathering etc
Quote:Original post by GamerSg
Why isnt it ill suited? The cell uses an asymmetric processor architecture, which means that the SPE's do not have direct access to the main RAM. If you wanted to do ray tracing tests on the SPE's, you would be severly limited with the amount of geometry you could test against in 256KB of memory. In a typical game scene, your geometry would easily number 100k polygons. Obviously you cant fit all of that in the SPE's memory. A single ray test could require multiple iterations of filling the memory with different geometry from the scene. This will introduce additional overheads to the PPE which is already going to be heavily taxed since it is the only real capable General Purpose CPU which will be handling most of the conventional game code and also happens to be underpowered when compared to a Pentium 4 or G5.
In my opinion, theoretically the cell is extremely powerful but in practice the architecture is just flawed for games or almost any other general purpose software.
Quote:Why isnt it ill suited?
Quote:on the fastest pc doing the same scene yould be looking at seconds per frame not frames per second
Quote:Are you drunk?
Quote:Original post by zedzUhm...where is houten?
+ no i wasnt drunk (btw i used to work in houten)
Quote:
To put this render job in perspective I just ran one frame of this scene through 3dsMax’s default ray-tracer an it took my Centrino Duo (dual core x86) machine one hour eight minutes to render what Cell and the iRT renders in less than one half of a second.
Quote:Another point I wanted to clear up is that the iRT is a completely scalable ray-tracer. One SPE can render the entire 3M triangle city model by itself at 1080p.
