Try setting assumed_gamma to somthing very low, like 1 or 0.5. This will 
brighten everything up, hopfully simulating the natural adjustment our 
eyes make in low-light situations.

John Pallett wrote:

> Help, gurus!
> 
> I have several indoor scenes where the primary source of illumination is
> sunlight coming through one (or several windows).  After playing with
> gigantic white spheres outside my building, parallel lights coming through
> the windows, and every radiosity setting combination I can think of, I
> cannot get the room to look real.  Some typical results:
> 
> - If I crank my "sunlight" (a parallel light) up to rgb<100,100,100> I get
> very blotchy results, though the room is lit reasonably well
> - If I crank my "ambient white sphere" (a gigantic sphere outside my
> building) to have ambient 100, I get strange artifacts
> - If I leave lighting values down where they are reasonable (2 being a
> maximal value) my room is too dark, the light doesn't bounce in the room at
> all
> - If I turn recursion up to 20 and increase my count to 500, my results get
> a bit better... but it is REALLY slow and still very dark
> - Using a light INSIDE my room gives me great results!  It is just the
> sunlight that I am having trouble with.
> 
> Some notes:
> 
> - My materials all have a diffuse value from 0.9 to 1.0 - so they should be
> scattering the light around the room nicely
> - I tried playing with "Brightness" above values of 1.0 which light up my
> room, but make my contrast levels look strange
> 
> ... my goal here is to have a generic "sunlight" method that I can use with
> several indoor scenes, which does not require an hour for each frame.  Is
> this a feasible task?  Please tell me that I don't need to add area lights
> to each window.  :)
> 
> Any suggestions greatly appreciated, sample scenes, anything.
> 
> Cheers,
> JP
> 
> 
> 


-- 
Samuel Benge

sbe### [at] caltelcom

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