Ah, so radiation is being emitted and blocked in a way that coincides to the way we interpret 3d objects, is that right? Because if it would be uniform, the bright orange colors would be uniformly distributed?
No, I was thinking in terms that the pillars are glowing and illuminating themselves, which would be really coincidence to have this luminescence only on areas that would look like a shadow or not.
It turns out that for my original question, there is actually something illuminating it from the top-right. As massive as the pillars are, they are part of a yet bigger structure [0] and the brightness generated is allowing us to see it with better depth. It's really incomprehensible to grasp how large things can get.
