I’m not entirely sure I get what you wish to do, here are some tips you could start with:
Maybe this could get you started on a “surface level” (literally too):
You can use the
Incident Radiation component in the LBT 1.x version, that gives an estimate on the radiation on your walls, windows, etc., you can use the results for further calculation in Grasshopper, or Excel, if you are only interested in the design day values.
You can read about EnergyPlus solar radiation calculation here:
The incident radiation is not telling much about the internal conditions:
To get a better understanding what happens when radiation is transmitted through the window, I recommend you skim through the documentation of the Window Calculation module:
It’s a deep dive… fortunately you can use simplified methods to account for aggregate window properties, but if you are interested in the effect of solar radiation on summer cooling- and winter heating energy reduction (I’m on the northern hemisphere), I cannot see a shortcut over this in the long run.
To model windows with shading (extremely important), you need to build an energy model with Honeybee, but that alone worth dozens of pages. I recommend you look through the examples on Hydra and search the forum for previous topics - how to setup windows, simple glazing, detailed glazing, how to assign shading, creating schedules for shading, modelling shading, determining whether windows are operable, etc. - all these properties are relevant to get a realistic report on solar radiation within a zone.
Is this what you are interested in?