On 21/06/2011 06:41 PM, Warp wrote:
> Invisible<voi### [at] devnull>  wrote:
>> OK. So the early ones were entirely hard-wired. They're still using
>> parallel processing to solve a real-world problem. My point was that
>> some kinds of algorithms are very easy to solve with parallel processing.
>
>    Scanline rendering is easy to parallelize because all the pixels can be
> rendered independently of each other (not unlike raytracing).

Indeed, a great many graphical tasks parallise very well. For example, 
image scaling (whether bilinear or trilinear or anisotropic or 
whatever). Or DCT / inverse DCT operations [on independent pixel blocks].

Other tasks don't parallise so well.

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