r.sunmask
r.sunmask.position - Calculates cast shadow areas from sun position and elevation raster map.
Raster (r.*)
ParameterRaster|elevation|Elevation raster layer [meters]|False
ParameterNumber|altitude|Altitude of the sun in degrees above the horizon|0|90|0.0
ParameterNumber|azimuth|Azimuth of the sun in degrees from north|0|360|0.0
ParameterString|east|Easting coordinate (point of interest)|
ParameterString|north|Northing coordinate (point of interest)|
ParameterBoolean|-z|Do not ignore zero elevation|True
ParameterBoolean|-s|Calculate sun position only and exit|False
OutputRaster|output|Shadows