Rock and snow Mountain with camera moving.
we can see the ghost ray effect for the sun like when you are flying on the plane.
you can increase the sampling render for more real effects of snow.
my render is just to 100 sampling because my CPU is weak.
all the textures can be found in the web site:
http://www.formation-sketchup.fr/
we have a "Texture-Papier-peint" in which I have take the Snow texture
we also have "Texture-Sable" for a rock texture.
this rock mountain has been made from sardi pax tutorial available in this link
https://www.youtube.com/watch?v=3a6TmSvNWsw