At about 6:20 am today, I saw on my bedroom wall the the pure red color of sun rise. It was really reddish and the shadows next to it were even more blue. I used to achieve this effect with ordinary lights by changing light and shadow colours even in scanline times.
Today I wanted to create the same reddish tint with a daylight system on mental ray.
I played with sun’s height, red-blue tint value, saturation value and even color temperature values in exposure control. Yes there is eventually some redness, and very nice, too but, but it is more like a yellowish tint on the entire image - like the ambient colour is yellow so I couldn’t reach the exact same effect.
The distinction between the direct illumination on surface and the shadow next to it is so vivid. One red and the other blue. Actually the same effect is noticable in noon lighting either. May be due to the Haze model, I don’t know? I tried Perez and CIE, too.
Any ideas on how to improve this?