To this post I have a follow up question; Is it so that the level of the horizon corresponds to the Z value 0 in the near shading 3D scene construction? Or is the curvature of the earth taken into account? Meaning: do we assume sun height 0 degrees and the Z value 0 to be the same in the modelling? When making the 3D model, does my placement of objects in the Z direction have any influence on the shading, or is only the relative placement of objects important? Just wondering if the same result will be given if object 1 is at Z = 0 and object 2 is at Z = -5 or if object 1 is at Z = 5 and object 2 at Z = 0.
