Probably it will not be possible to achieve pleasing in-door and out-door 
illumination at the same time.

Remember, our eyes have pupil that adapt to the surroundig light - PovRay 
does not! If it is bright outside and we are looking out of the window our 
pupils shrink. When we then look back into our room, they dilate. Our eyes 
are seeing at different "exposures", depending on the surrounding light.

So in PovRay: if the light looks good on the outside (bright), it will seem 
dark inside. If it looks good inside (without tricks), it will be way too 
bright outside.

If our eyes would not be able to adapt to different lighting we would not be 
able to see much at all. And PovRay, if used with one set of lightsources, 
is such an eye -unable to adapt to the lighting.


news:48982e0e@news.povray.org...
> High!
>
> For the time being, I decided to fix my illumination problem by using a
> shadowless fill light for my apartment, of course with a fading to avoid
> additional illumination of the outside world. As I placed the fill light
> light right on the x center of the block, which is 5.54 units from the
> outer edge of the balcony door opening, I set the fading_distance to 5.54.
>
> Strangely, if I use fading_power 10 (to get a really sharp drop in
> brightness beyond the balcony door), the insides of the building remain
> as dark as without any fill light... with fading_power 1, I get an at
> least halfway credible indoor illumination (the original light
> brightness is rgb 0.2), but then of course the light still illuminates

> at least as bright like without fading, or even slightly brighter, as
> with fading, the light intensity starts at two times the nominal value
> (according to the POV manual)?
>
> Attached here are the following versions:
>
> a) view into my apartment without any fill light
> b) view along the street without any fill light
> c) view into my apartment with a simple point fill light, no fading
> d) view along the street with a simple point fill light, no fading
> e) view into my apartment with a simple point fill light, fading_power = 
> 1
> f) view along the street with simple point fill light, fading_power = 1
> g) view into my apartment with a simple point fill light, fading_power = 
> 10
> h) view along the street with simple point fill light, fading_power = 10
>
> See you in Khyberspace!
>
> Yadgar
>
>

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