I know these don’t cast shadows, but what about shadows inside them ? Those clouds seem to have self shadowing, but I wonder if you can get sharp shadows or rays like in the next image ? And if these don’t cast shadows maybe these won’t work so well so close to the ground ? Maybe there can be some kind of a workaround with an invisible object placed in the same position - which would cast a shadow ?
In the next image you can also see some semblance of light rays inside the vdb, because the shading is “thicker”
I also wonder if the vdb can be made as transparent and feint like in the next image ? As a sort of light mist
