Nieminen Mika wrote:
> 
> 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.
Ok, you got me. Everything depends and nothing is true... ehh.. did I just Lie ??


> : 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.
Hmm, most of my expereince with difference come from multiple objects, a difference of
a
text from a union... but then, text is generally pretty slow... IMHO


> 
> :> 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.
Yes, but then.... it is slow...

> 
> :> Don't have radiosity turned on.
> : Never...
> 
>   I wouldn't say "never".
Hmm, Well, not until you have patience to wait...

> 
> : 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."
Keyboard not present, press any key to continue.
//Spider

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