Adjust model's parameters:

azi: Facade's azimuth °
H: Facade's height
W: Street's width
S: Height of facade's area of interest
B: Gap below facade's area of interest
Add an overhang
Also consider interreflections

Remarks:
The calculations will be performed only for the facade's area of interest (coloured in red on the section view) and, optionally, at street level. The sum B+S+T should always remain ≤H. All dimensions can be specified with any unit at any scale. Azimuth is defined clockwise from North: North=0° East=90° South=180° West=270°
Also make computations at street level

Select a geographic location either by specifying:

a latitude or a specific site