On 13-1-2010 20:16, nemesis wrote:
> andrel escreveu:
>> You will still have the general increase in power, so if you need a 30 
>> time increase, just wait 7.5 years.
> 
> in 7.5 years, assuming intel don't buy nvidia, I'll be using the whole 
> sheer processing power available rather than just CPU.  So, you may have 
> your 30x speedup, while your GPU sits idle, but I'll be making it sweat 
> to give me 500-1000x speedups.
> 
>>> This is the future:  tapping all that hidden power that was being 
>>> ignored so far
>>> because we insist on using a lame-O chip geared at word processing to 
>>> do math
>>> operations.
>>
>> That remark merely shows that you don't know anything about the 
>> history and design of computers, or choose to ignore that.
> 
> It was obviously an over-the-top remark, but you get the point.
> 
>  > Hopefully there will be an
>  > offspring (possibly GPU based) that will be able to parse POV scenes and
>  > generate a preview of less quality but in much smaller time. When that
> 
> This makes no sense at all:  people aren't getting into GPU to get 
> lame-O real-time previews of less quality, but to speed up final renders 
> by a few orders of magnitude.

That may vary between persons. For me the most time consuming is finding 
the right viewpoint, testing textures and lighting. That takes more than 
an order of magnitude more time than the final render.

> 
> If you think GPU = game-like graphic quality, 
No
> you're very dead wrong. 
So I might not be.
> General Purpose GPU programming is all about using that huge available 
> power for general purpose computations.  Power that you don't use at all 
> if you're not a gamer right now.

What I think is that ATM GPU's are useful for trangulations and that the 
  result is near real life. As far as I have heard the rendering is less 
physical correct and more is faked. I though they were a bit lacking in 
multiple reflection and refraction, in media and possibly also in 
versatility of procedural textures. I am not a gamer, so I don't 
actually know for sure.

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