Conserve_energy could be helpfull here don't you think?
the part of light which is reflected is not transmitted.
Inside building is darker than outside so less light comes from inside.
Isn't it how it works?

Marc


de news: cja### [at] netplexaussieorg...
> In article <3ea0f666$1@news.povray.org>,
>  Simon Adameit <sim### [at] gaussschule-bsde> wrote:
>
> > Normally glass is modeled with thickness and not just as one surface so
> > slope or object pattern might be better.
>
> Neither of those will be of any help in making one-way glass. If you
> make a box with one side dark and the other side light, you will either
> see the dark side directly or through the light side. I'm not sure how
> you plan to use the slope pattern...I think it is idependant of the side
> of the surface it is evaluated at.
>
> Anyway, in a one-way glass window, you are unlikely to be able to tell
> the difference between thick glass and single-surface glass. With smart
> lighting and reflection values, you should be able to get an acceptable
> effect, otherwise using interior_texture or actually changing the
> texture depending on the camera location is probably the best way to go.
>
> --
> Christopher James Huff <cja### [at] earthlinknet>
> http://home.earthlink.net/~cjameshuff/
> POV-Ray TAG: chr### [at] tagpovrayorg
> http://tag.povray.org/

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