Ingo,

thanks for the idea, this is what I am looking for. I am not worried about
absolute light intensities, as I just want to compare the simulated
photocell outputs for different changes in the optical system. Maybe, I have
to dig a  bit deeper into Povray theory to be prepared when I show my
results to a physician.

Cheers,
OT


"ingo" <ing### [at] homenl> schrieb im Newsbeitrag
news:Xns### [at] povrayorg...
> in news:3d736db0$1@news.povray.org Oliver Tilch wrote:
>
> > Is it feasible to misuse the raytracer to get  photocell output
> > values for defined scenes, rather than camera images?
>
> Oliver,
>
> I'm not quite sure I understand what you want to achieve, so here's wild
> guess on what could be done.
>
> Assuming you have an optical system that is some kind of
> imaging/projection device and the light from it falls on the photocell.
> The photocell will give a voltage depending on the amount of energy it
> receives.
> If this is what you want to simulate, you can build the whole setup in
> POV-Ray, using photons. Instead of projecting on a photocell you project
> on a white plane. Now set up the camera to only render an image of the
> plane. You can average the brightness of all the pixels in the resulting
> image, that could be something comparable with a voltage from a
> photocell.
> Note that POV-Ray does not simulate realistic, absolute, light
> intensities.
>
> Ingo

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