Saturday, October 6, 2012

Latest Results

Below are some renders I made after implementing direct sun sampling. these are images of a clear, dry sky, with only Rayleigh scattering and no Mie scattering.

I have not yet implemented a realistic spectral emission distribution for the sun, so right now, it's just flat across the visible spectrum. I am using a rough, temporary approach to convert spectral results to RGB. These pictures all use the same exposure, so the luminosities are roughly comparable.

For now, I made the ground an 18% gray, perfectly diffuse reflector.

Sunrise or sunset.
Twilight. Sun
below horizon.
Day with
lower sun.

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