Thank you for the link. It's a very useful documentation.
With respect to 'pyephem', I didn't probe it. I'll need it soon, and I hope that it does not too much complicated.
I've recently been playing with Radiance (https://github.com/NREL/Radiance). A few years ago I did some simulations in order to obtain the luminance levels and glare calculations of a building, all numbers. It was a nice and relatively easy work.
Now I would like to walk a forward step and probe the Radiance abilities for rendering pictures. Indeed this is a heavy work for me.
My first try does not seem too much promising. It's very complicated, specially the dayligth. A lot of parameters ...
sphere_pfilt.png
sphere_pfilt.png (958.58 KiB) Viewed 33 times
One point of interest is the patterns and textures. I want to do a parallel study radiance - coin3d relative to them (bitmap and procedural functions).
Revisiting the Radiance documentation I've been found that Radiance besides has stereographic projections. In this way it's possible to join the solar path with the stereographic view of your placement. This could be a nice exercise. I'll try.
see you