Solar Radiation on 3D buildings?

[StéphaneRIBES]

Hi,

Is there a way to calculate solar radiation on 3D buildings walls using 3D analyst or City Engine?

I'm not interesting about extruding 2D solar radiation calculation (on roofs) on a 3D output. I would have a real solar radiation on each wall taking in account shadows effects between buildings for example.

thanks

Stéphane