Rafal 'Raf256' Maj wrote:
> 
> dva### [at] cedarnet news:40a6e00d@news.povray.org
> 
> > What sort of options are available for making big whopping sparks that
> > light up the scene?
> 
> FOr questions please use povray.general (or .newusers).
> 
> As for sparks, You can use
> 1) small bat very bright emission media
> 2) small spheres/etc with high ambient finish
> 3) real light sources
> 
> options 1) and 2) need radiosity and therefore are usualy slow, on the
> other hand using 3) is slow when YOu have too meany sparks.
> 
> Btw funny I was qoing to write a small FAQ/tutorial about it I hope You
> will find it usefull :)

You can use small ambient=1 no_shadow objects to model the sparks, but
a light source for each spark may not always be needed; a light source
in the middle of a group of sparks may be enough to look realistic.

If the sparks are in motion, you need to model them as portions of
a tube, or use some kind of motion blur.

Regards,
John

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