Not so simple interior

Post by **OnoSendai** » Sun Oct 21, 2007 7:17 pm

Fantastic image BbB.
This image reminds me of something that needs to be improved in Indigo.
Notice that the ceiling directly above the windows (especially the corner windows) is illuminated rather brightly?
I think this is a consequence of the sky sphere outside the windows, and in particular, the way the way I have constructed the lower hemisphere of the sky sphere.
The original Shirley + Preetham + Smits sky model is only defined on the upper hemisphere. However, if you just make the lower hemisphere completely black, then you get a rather jarring horizon line.
So I decided to extend the horizon values down into the lower hemisphere. However I think this greatly exaggerates the usual spectral radiance one would receive from objects below the horizon.
So I might try a model for the lower hemisphere that blends the horizon spectral radiance to black over a range of elevations, say over 10%.
Or perhaps I could make it blend into a user specified colour.
Thoughts?

CoolColJ · Post by **CoolColJ** » Sun Oct 21, 2007 9:33 pm

A user adjustable blend would be nice ONO - I myself have found the skylight too bright

Blending to green or some Terragen mountain ranges would be logical

Kram1032 · Post by **Kram1032** » Sun Oct 21, 2007 9:51 pm

a blend between physical sky and uniform background light?
Why not

BbB · Post by **BbB** » Sun Oct 21, 2007 11:56 pm

Why not a brownish, earthy colour as default? Something along those lines would also potentially give very nice reflections on outside, sun-lit speculars without the need for an HDRI...

Pinko5 · Post by **Pinko5** » Mon Oct 22, 2007 12:06 am

WOW BbB amazing image!!!
Very very good work as usual!!!
Pinko.

filippo · Post by **filippo** » Mon Oct 22, 2007 3:19 am

wonderfull work!!!
filippo

Not so simple interior

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