.... good idea, thank you very much!!


Alain <kua### [at] videotronca> wrote:

> > Hello,
> >
> > when using the "photons" feature in a scene, is there any option to adjust the
> > brightness of the effect "photons" causes, as it is possible for the "radiosity"
> > feature with the brightness statement in the global radiosity block?
> >
> > I know, POV-Ray just wants to create realistic images, but sometimes it can be
> > reasonable to "improve" realism to get the look desired.
> >
> > In this special case, I have some quartz objects on a dark surface, and I would
> > like to make the diffraction pattern  more bright without increasing the
> > brightness of the surface.
> >
> > Thank you!
> >
> >
>
> You can try a 2 pass process.
> In the first pass, use a brighter light and save the photons to a file.
> In the second pass, bring the light to it's intended value and load the
> photons file.
>
> When you load the photons, no new photons are shot. If the light used to
> create the saved photons is much brighter, then the saved, and reused,
> photons will be that much brighter.
>
> You may want to increase the dispersion_samples value to get smoother
> redults.
>
> Alain

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