What is the difference between area solar radiation(spatial analysis) and sun shadow volume (3D analysis). Are they both used to show sunlight volume?
What I make up from their help pages is the following:
- Sun Shadow Volume: Calculates the shadow cast by each feature using sunlight for a given date and time. Thus it calculates a shadow.
- Area Solar Radiation: Derives incoming solar radiation from a raster surface. Thus it calculates the amount of radiation received by a given raster cell, both direct and indirect(How solar radiation is calculated)
So it seems that your goal determines which tool to use.