amazing progress in noise reduction,fantastic work.

My vote is adding GGX just the problem of GGX in my opinion is when rough=0.6 or greater looks very very rough and useless.

Congratulations...we can see very nice details in dark areas and the colors are nicely rendered.
Very nice work !

Some small internal progress, we have improved geometry data storage by around 30%. Now more polygons will fit into geometry cache and it is also good for "out-of-core" case.
Still working on the rest of the TODO list.

#1 We had the manual trick with cache manipulation http://centileo.com/forum/forum19/93-recomendation-to-increase-render-speed-and-reduce-lags which allows to increase the render speed. Now this works automatically. This is needed for production mode in 3ds Max and for Picture Viewer in C4D.

#2 Now the renderer consumes the GPU memory not larger than available scene geometry needs + some rays cache (up to 1GB) + texture cache (up to 768MB). This fixes the problem reported by Aimar http://centileo.com/forum/forum19/84-centile-and-vram-problem. If there is more geometry than GPU memory then out-of-core comes in but now it is more efficient due to improved data transfer and data storage.

#3 In Multi-GPU system all the available memory of single GPU will be utilized. For example if you make the render of scene using one 4GB and one 8GB GPU then the first GPU will utilize up to 4GB of memory and the second GPU will utilize up to 8GB of memory. And the first GPU in the same render may use out-of-core operations while the second may use no OOC operations because of larger capacity.

#4 However there are still some details related to limiations that we need for robustness: if some GPU is very small like 1.5-2GB then it can accept up to 30M polygons and 100K mesh instances and if GPU has more than 4GB then it may accept up to 400M polygons and 1M mesh instances. All GPUs larger than 4GB have same limits.
If you combine 2 or more GPUs with different limitations in one scene render then the smallest limitation will apply for all other GPUs. The limits are quite high and will be higher one day.

But if all GPUs in the system have same limits then #3 will effectively work.

Still working on the other things, now on the part related to texture transfers to multiple GPUs and there is some fight between few features e.g.:
1) efficient texture cache utilization inside the bucket (needed for better speed increase due to more GPU)
vs
2) image-space noise-driven adaptivity at low sample rates

i just bought the GTX 1080ti SLI render machine.
i think i could be of help for testing the new Muti-GPU function.
Don't stop dude~you are changing the world.

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Kirgman wrote: Thanks a lot for support! Quote play boy wrote: i just bought the GTX 1080ti SLI render machine. i think i could be of help for testing the new Muti-GPU function. Btw, how many GPUs in machine? 1080ti should be exceptionally good for rendering!

over 7000 GPUs.
yes super fast for rendering.

I think he means cuda cores,..!

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Konstantinos Despotis wrote: I think he means cuda cores,..!

LOL