Zhenming.Peng
Subscriber
Hi Karthik

i had already read the help documentation before.
there is no clear definition of the direct radiation
it shows:
Illumination Parameters
Direct Solar Irradiation
is the amount of energy per unit area due to direct solar irradiation.
it basically doesnt explain which direct radiation i should use as input (the value of horizontal irradiance, or normal irradiance)
regards