Evaluates the hillshade, considering the sunlight and the shaded relief.
Inputs
- the file containing the matrix of the elevations, usually the DEM or the output of pitfiller
- the minimum diffuse insolation (which default value is set to 0)
- the azimuth (which default value is setted to 360)
- the elevation of the sun (which default value is set to 90)
Output
- the matrix containing the hillshade values