<div>Hello all:</div>
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<div>I have some questions relating to gensky command.</div>
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<div>(1) The book of "Rendering with radiance" says luminous efficacy is set to 179 for all CIE sky models. Is that true for current version? </div>
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<div>(2) If I know Solar direct radiation and diffuse radiation, I hope to use Perez's (source: Modeling daylight availability and irradiance components from direct and global irradiance, 1990 solar energy) models (that is, interpolate two CIE sky model according to radiation), is that possible to generate a new sky luminance distribution model by interpolation of two standard CIE model in Radiance in order to calculate the interior illuminance more accurately?</div>
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<div>Thank you,.</div>
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<div>Jia</div>
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