Search found 44 matches

by mischterlampe
Tue May 12, 2020 7:42 am
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

Here is the caustic only rendering with 100% cpu for light tracing and only sun.

https://streamable.com/9cx6ia
by mischterlampe
Mon May 11, 2020 8:24 pm
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

I also rendered with the latest version 41da08d
and I get flickering, too.
https://streamable.com/wsu0yd

World Setting has no light, just one sun, 4k samples.
by mischterlampe
Sun May 10, 2020 11:47 am
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

First problem solved :-)
by mischterlampe
Sun May 10, 2020 11:12 am
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

Sorry, but I don't get it. Please exlude the light tracing issue here (I disabled it for this test) and just focus on the indirect cache. This means, if I rise the threshold, more and more materials should become black. But noting happens. If I rise the threshold to 0.9, which means almost every ma...
by mischterlampe
Sun May 10, 2020 11:09 am
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

I'm working on a better estimation method but FP32 numerical precision is also a huge problem with numbers so large. Thank you for the explanation, I can now understand, why it is flickering and I'm also very very happy, that you are working on the issue. Do you know how other renderer like octane ...
by mischterlampe
Sun May 10, 2020 10:57 am
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

This is the correct behavior, indirect cache is about diffuse and glossy-nearly-diffuse materials (i.e. not specular). So everything over the threshold (i.e. not to "shiny" and "directional") ends inside the cache. Sorry, but I don't get it. Please exlude the light tracing issue here (I disabled it...
by mischterlampe
Sat May 09, 2020 9:38 pm
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

Another issue, I came across, is that the glosiness threshold of the ind cache does not bahaving like expected. As long as the material´s glossiness is below the threshod the material is not in the cache, it is black in the indirect debug view. If I change the material's glossiness higher than the t...
by mischterlampe
Sat May 09, 2020 9:24 pm
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

I have some further question. I don't know if they are related to that flickering. When I hit render in the viewport I get a result, which looks pretty like the normal rendering, in the viewport the caustics are coming very late, meaning after 6s there are no caustics visible in the viewport, but th...
by mischterlampe
Fri May 08, 2020 8:16 pm
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

Thank you for fixing the caustics. Regarding the flickering, it is still there. I totally understand your explanation so I rendered it with 4096 samples. This took about 4,5 minutes eache frame. I have a ryzen7 2700x and two gpus (rtx 2060 super and rtx 2060) So do you think there is such a imbalanc...
by mischterlampe
Thu May 07, 2020 6:11 pm
Forum: User Support
Topic: The flickerfree animation challenge
Replies: 47
Views: 10200

Re: The flickerfree animation challenge

The flickering is way better, but there is still an increase of brightness. It feels more linear. https://streamable.com/411d7q But what I miss are the refractive caustics. Light tracing and PhotonGI ind. cache is on and persistent. Here is the old flickering version: flickeringversion.png and here ...