Spider <spi### [at] bahnhofse> wrote:
: The more so, use union instead of merge where possible, it's faster

  This isn't always true.
  If you have several semi-transparent objects, usually merging them is
faster than unioning them (probably because povray has to do fewer lighting
calculations because there are fewer surfaces). Of course the resulting
object from merging semi-transparent objects is completely different from
a union of them.

: Difference is slowwwww...

  This isn't always true either.
  I just tested: Three unioned spheres took 46 seconds to render (at 640x480),
and the same spheres differenced took only 37 seconds.
  The size of the visible surface plays a very important role in the
rendering time, obviously because the shading calculations are rather slow.
The fewer the surfaces and the smaller (on screen), the faster.

:> Don't use media or fog.
: Absolutely not...

  Fog isn't so cpu-hog. AFAIK fog is rather fast to calculate but achieves
very nice results.

:> Don't have radiosity turned on.
: Never...

  I wouldn't say "never".

: 4	reboot to DOS
: 5	reboot to windows
: 8	reboot
: 10	reboot.

  "Windows has detected movement of the mouse. Please reboot the computer
for the changes to take effect."

-- 
main(i){char*_="BdsyFBThhHFBThhHFRz]NFTITQF|DJIFHQhhF";while(i=
*_++)for(;i>1;printf("%s",i-70?i&1?"[]":" ":(i=0,"\n")),i/=2);} /*- Warp. -*/

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