Animation problem

[Lino Pontes Donnamaria]

Hi guys!
I have a problem with my animation.
I am using pass limit 18, but the result are not good.
I did increase the pass limit to 25, but don't work
I did an animation with pass limit 10 and the result was very good.
Can you help me?
See the video atached.
Thanks a lot!

[Lino Pontes Donnamaria]

Why this flickering?
How can I solve this?

Thanks

[Daskydesign]

I think the flickering is caused by the animated texture of the screen. Is that a selfilluminated material?
Have you tried to render it without that?

[Lino Pontes Donnamaria]

Hi!

It was sefilluminated. I turned of, but don't solved this problem yet.

[Daskydesign]

mmmh did you use the light portal for the window?
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501660-how-to-use-light-portals-in-corona-

[cecofuli]

18 or 25 passes for this scene are too low! =)
And, don't use Passes, but Noise Level.
For a reasonable quality, NL should be >4%

[zdragas]

Did you precalculate UHD Cache?

[maru]

First of all, I don't understand the description:

I am using pass limit 18, but the result are not good.
I did increase the pass limit to 25, but don't work
I did an animation with pass limit 10 and the result was very good.

Another things:
-denoising is not magical - it will try to denoise the image, but if there is too much noise initially, there will always be flickering and smudging visible
-10, 19, or 25 passes is most probably not enough, please see: https://coronarenderer.freshdesk.com/support/solutions/articles/5000518064
-if there are no moving lights or objects in your scene, you should bake your UHD Cache and reuse it for all frames: https://coronarenderer.freshdesk.com/support/solutions/articles/5000515648

[Lino Pontes Donnamaria]

Hi guys!
Thanks for your answers and comments!
Now I answers your questions...
Yes, I am using portal for window.
I am using Denoise A= 1 and Denoise R=0,6. This setup did work very well in others projetcs. I believe now that 18 - 25 pass is no enough for this case.
Yes, I did precalculate UHD Cache.
An image attached show my setups.

Thanks my friends!

[Lino Pontes Donnamaria]

Hi guys!
I am using UHD Cache preset animation on. In this image don"t show this.

[SHORT CUTS]

Try setting the uhd cache preset to animation (flicker-free). right now i am also doing my first animation with corona and i overlooked that setting and guess what, i had a lot of flickering in my earlier test animations. changing that to animation did solve all the flickering in my case.

[Lino Pontes Donnamaria]

Hi!
I am using UHD Cache preset aniamtion yes. This image that I posted here with setups  do not has this UHD Cache preset aniamtion active, sorry, but it is active.
See in this video part. Has flk...
Forgive me, my english isn't good, but I hope that you understand me.

Thanks guys!

[maru]

Hi, sorry for the delay. The kind of flickering you can see in your animation is visible on edges, bright reflections, etc, which means that it is caused by insufficient supersampling (antialiasing). To solve this, you simply need to increase the number of passes. See:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000516725

If you would like to keep similar render time, you can increase the number of passes, but at the same time lower GIvsAA. Here is an example:
10 passes, GIvsAA 16 = 20 passes, GIvsAA 8 = 40 passes, GIvsAA 4
All of these should take similar time to render, where more passes = better antialiasing, and more GIvsAA = better GI. You shouldn't probably go lower with GIvsAA than 4.