Computational complexity of different kinds of environments while lucid?

I had a nice vivid lucid last week where I encountered a gloriously beautiful landscape. I glimpsed it out a window and flew out into it to better see and enjoy it. Once outside, I lasted only a few seconds in that glorious sweeping vista before I transitioned into a FA -- I remained asleep and dreaming, but the dream ended and I thought I had awakened in bed (I regained lucidity a moment later when I was suddenly ejected from bed into a slide/tunnel) .

It got me to thinking -- most of my LDs are indoors it seems, and the ones that were outdoors had very simple geometry (square buildings, rectangular paths). But this landscape was full of "twig trees" (trees with lots of twiggy branches but no leaves), rolling hills, and extended far into the distance.

Could it be that the geometric complexity of the scene contributed to "brain rendering overload" and ended the scene?

Do people experience long lucid scenes with high degrees of complexity?

I know that sivason mentions in LDs that the brain sometimes needs periodic rebooting every few minutes (resting by limiting the "view" to a single simple thing), and I wonder if this was one of those sorts of things...

(since, so far, my LDs have 99+% only finished when I hit caveman mode...)