[Radiance-general] the solar position algorithm used in Radiance

[Ji Zhang]

Dear list,

May I ask what is the exact algorithm used by gensky and gendaylit to
calculate sun position in Radiance?

i.e. given the latitude, longitude, standard meridian, month, day, hour,
what's the formula used in Radiance to produce solar altitude and azimuth
angles?

Thanks!

- Ji
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