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24 hours of sky over the Grand Canyon in Radiance

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Published on Nov 16, 2010

I implemented the Preetham, Shirley, Smits (1999) daylight color model for Radiance, modified it a little to fit in the confines of .cal files, and presented the work at the Radiance User Conference at Harvard in 2009. The work includes not only the daylight color model, but uses libnova for all astronomical placements, the Tycho-2 star survey for accurate stellar positions, and realistically re-colors the sun according to its altitude. Slides from the talk are at http://markjstock.org/radiance/radian...

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