nz_Sunshine for sketchup
Natale Zappia has developed nz_Sunshine that can be used to visualize a ray of light together with some solar data like SunAngle, Summer Solstice, Winter Solstice, Equinox, Latititude and Altitude.
This sketchup plugin is compatible with SketchUp 2016, SketchUp 2017, SketchUp 2018, SketchUp 2019.
nz_Sunshine offers a visual illustration of the relationship among the sun and architecture so that one can take hold of a grass-roots basic understanding of how shadow castings functions.
Sketchup can instantly recognize solar entry, and much can be obtained even with a Trial&Error approach however it is crucial to appreciate the physical mechanics of Light and Shadow to get directly access of feasible solutions.... nz_Sunshine may perform as a design tool in it's own right as you compare option and retain your local solar data like the Solstice at the time of designing.
The plugin is available in extension warehouse extensions.sketchup.com.