Search found 169 matches

by alpistinho
Sat Apr 11, 2020 12:26 pm
Forum: Development
Topic: Limit CPU threads for compilation (Windows)
Replies: 10
Views: 718

Re: Limit CPU threads for compilation (Windows)

When I am on Windows I always disable the LTCG flag (and also the Gy too, I think).
The issue is the linking-time optimization.
by alpistinho
Mon Apr 06, 2020 7:49 pm
Forum: Development
Topic: BlendLuxCore: Save image while render is paused
Replies: 35
Views: 1417

Re: BlendLuxCore: Save image while render is paused

The first code line by BYOB seem to not give me any result. there is no file saved and i have to search in all folder as i don't know wich exact folder get the file. but a quick search "exr" inside addon folder show nothing. Alpistinho can you upload you're working modified final.py file so i can o...
by alpistinho
Mon Apr 06, 2020 7:37 pm
Forum: Development
Topic: BlendLuxCore: Save image while render is paused
Replies: 35
Views: 1417

Re: BlendLuxCore: Save image while render is paused

You have to rename the images or move them somewhere else if you want to prevent them from being overwritten. I guess you could probably do something like: import os from datetime import datetime os.rename('a.exr', '{}.exr'.format(datetime.now().strftime('%Y-%m-%d-%H-%M-%S') Just change a.exr to th...
by alpistinho
Sat Mar 28, 2020 4:39 pm
Forum: Development
Topic: Blue noise dithered Sobol
Replies: 19
Views: 2231

Re: Blue noise dithered Sobol

Just to give an update, I haven't really been able to create something that: Has blue-noise characteristics in screen space Doesn't have a heavy correlation between dimensions Doesn't need to generate an absurd amount of samples The version using Owen scrambled Sobol samples works ok for the first 2...
by alpistinho
Fri Mar 27, 2020 3:03 pm
Forum: User Support
Topic: Activation problem with V 2.3
Replies: 6
Views: 699

Re: Activation problem with V 2.3

Mint is based on Ubuntu.

The 18 release is still based on Ubuntu 16.04, if I'm not mistaken.
by alpistinho
Thu Mar 19, 2020 2:33 pm
Forum: Development
Topic: Blue noise dithered Sobol
Replies: 19
Views: 2231

Re: Blue noise dithered Sobol

Sharlybg wrote:
Thu Mar 19, 2020 1:01 pm
He it in the master ready for test ?

want to integrated theses improvements in my cycles vs luxcore test i'm working on.
Definitely not, the code is a bunch of patches thrown together and it is not even rebased for 2.4
by alpistinho
Thu Mar 19, 2020 2:26 pm
Forum: Development
Topic: Blue noise dithered Sobol
Replies: 19
Views: 2231

Re: Blue noise dithered Sobol

BTW keep in mind that I posted here an evolution of that method, this is the link: https://hal.archives-ouvertes.fr/hal-02158423/file/blueNoiseTemporal2019_slides.pdf This is only valid for animation rendering. The counterpart for still rendering is the one I mentioned in the first post, using Owen...
by alpistinho
Wed Mar 18, 2020 11:55 pm
Forum: Development
Topic: Blue noise dithered Sobol
Replies: 19
Views: 2231

Re: Blue noise dithered Sobol

Thanks for the test. As far as I understand, the method implemented in Cycles is described here: https://www.arnoldrenderer.com/research/dither_abstract.pdf This method degrades into white noise as the rendering goes on, so I assume that by 200 samples there would be not that much difference between...
by alpistinho
Sun Mar 15, 2020 4:32 pm
Forum: Development
Topic: Blue noise dithered Sobol
Replies: 19
Views: 2231

Re: Blue noise dithered Sobol

Hi, Now I've hacked it into my PMJ02 patch: I'm doing the same thing we do with the current sobol samples. Applying the Cranley-Patterson rotation to the samples but using the blue mask. According to the Siggraph "My favorite samples" panel we have to apply this rotation but only inside each stratum...
by alpistinho
Sun Mar 15, 2020 3:23 pm
Forum: Development
Topic: Blue noise dithered Sobol
Replies: 19
Views: 2231

Re: Blue noise dithered Sobol

Hi,

The both sampling are tiled over 128x128 pixels, so it is completely reasonable that there are correlation artifacts.
I will download the new scene to test.

About the noise, it is most likely due to the Owen scrambling. I saw the same effect when using my PMJ02 patch