Title: Multi IFS fractal Post by: Zelcious on May 29, 2011, 03:40:45 AM 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. Title: Re: Multi IFS fractal Post by: lycium on May 29, 2011, 04:56:46 AM welcome to the forum, it's great to see more rendering specialists here! O0 awesome results you've shown, too :) |