RE: [Algorithms] lights/shadows rendering architecture

[Joris M. <jor...@te...>]

> That means you'll have a pipeline doing:
> 
> -Render shadowbuffer A
> *stall*
> -Use shadowbuffer A
> -Render shadowbuffer B
> *stall*
> -Use shadowbuffer B
> -Render shadowbuffer C
> *stall*
> -Use shadowbuffer C
> etc.
> 

Why would the system stall between rendering to shadowbuffer A and using
it? Its not like the GPU renders a shadowbuffer which the CPU has to use
afterwards. I presume it all gets batched up in the command queue of the
GPU, and since there is only 1 GPU the shadowbuffer will be rendered
before the commands using it will be issued, so no stall, right?


Joris