clipka wrote:
> Arttu Voutilainen <blizzara.REM0VE7H!S### [at] zbxtSP4MM3Rnet> wrote:
>> It's not only the multithreading and compiler. I have only one core (AMD
>> 64 3500+) and I compiled my 3.6 from source, with gcc and probalby -O2
>> and -march=athlon64 (or w/e they are supposed to be). I think the
>> 3.7-b29 was downloaded from povray.org. So, actually 3.6 should probably
>> be faster as it was optimized for this CPU, but no - 3.7 is (at least
>> for the "Eva Sails Away"-image) like ten times faster.
> 
> 
> Optimization for the official 3.7 beta 29 binary is probably -O3, and it comes
> optimized for 64 bit as well.
> 
> "ten times faster" sounds a bit unlikely to me however. How much time are we
> talking about?
> 
> 

I just tried: 3.6: 1min 27s vs 3.7b29: 5s

The images look different, but that is caused by different handling of
gamma. Otherwise I can't see any differences in them.

Both used the same scene and same ini. Radiosity was not used, nor focal
blur, nor media. I guess the difference comes from bounding boxes or
something like that, as IIRC it is caused mostly by grass.

-- Arttu Voutilainen

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