第4頁
Data flow
IO: BluRay, HDD, USB, Memory Cards, GigaBit ethernet
Memory: main 256 MB, video 256 MB
SPUs, PPU and RSX access main via shared bus
RSX pulls from main to video
第8頁
The RSX Graphics Processor
PULL from the main memory at 20 GB/s
a high end GPU adapted to work with the Cell Processor and HD displays
這個PPT的制作人
Sony Computer Entertainment America : Cedric Perthuis
資歷
Started in the game industry in a small French game studio 6 years ago. moved to United States to work at Intrinsic Graphics. joined Sony Computer Entertainment to create the audio and media engines of the PSX in 2003. In 2005 joined Emdigo as Lead Engineer. Emdigo is a newly created startup focusing on 3D graphics content on cellphones. In 2006, came back to Sony computer entertainment to work on Cg for the PS3 launch.
第10頁
Objective: to update a particle system
The PPU prepares the rendering
schedule SPU jobs to compute batches of particles
push RSX commands to pull the VBO from the main memory
make the render call
The SPUs fill a VBO with positions, normals, etc
receive a job
compute particles properties
DMA the result directly to VBO
release RSX semaphore
-fundamental hardware difference with other platforms: the SPUs are part of the pipeline
