Shadow in Plan Question

Normally when I opt to have shadows in my plans I merely remove the ceiling/roof to create the shadow and overlay it onto my make2d’d plan that’s in Photoshop or Illustrator.

This time I’d like for the shadow in the plan (and sections) to only be what shadows are created by-way-of daylighting (what is visible through the apertures in the building).

Is there any way to do this?