Multi IFS fractal

[Zelcious]

First post!

Multiple IFS and global illumination (plain pathtracing). Rendered with a homegrown renderer using CUDA.
Each transform has a cache friendly optimized subtree with a fixed number of nodes to quickly find which transforms to visit and in what order.
I dont know a method to get rid of a stack (do you?) but this method decreases stack traffic and the number of visited transforms tremendously.
Currently each subtree is optimized in regard to size of each node but I would be interesting to try what happens if you optimize to avoid overlapping nodes.
Also note that I only have to do a transform when traversing a leaf node of a subtree (thereby jumping to another subtree)
Original image was 8k x 6k. I guess it had a few thousend samples per pixel and took a few hours to render but I really dont remember.

[lycium]

welcome to the forum, it's great to see more rendering specialists here!  awesome results you've shown, too