Light Flickering

[Tazok]

Hello ! New day, new problem haha !

I did this render but I have this kind of white flicker against the wall.

Someone know what it could be please and what can i do ?

[Beanzvision]

Hi there, perhaps this article may help? https://support.chaos.com/hc/en-us/articles/7777270371473

Also, what are the frames per second? It has a stop motion feel.

[Tazok]

Hi there, perhaps this article may help? https://support.chaos.com/hc/en-us/articles/7777270371473

Also, what are the frames per second? It has a stop motion feel.

It's 25 fps, it's just because i slowed it down a bit on premiere because it was a bit too quick to see, but no problem on that side.

I'm gonna try the "UHD Cache" thing of your link ! Seems very similar to my problem. I'll tell you if it's work.
Thanks for the link !

[Beanzvision]

You may also want to enable ''flicker free'' in the secondary GI tab. More on that here: https://support.chaos.com/hc/en-us/articles/4528607789585

[Tazok]

You may also want to enable ''flicker free'' in the secondary GI tab. More on that here: https://support.chaos.com/hc/en-us/articles/4528607789585

Ok so it was already in "UHD cache" for the first thing, but it was on "still frame" for the second thing. I have put "animation flicker free" like you said, and seems to be good ! Thanks !

[Beanzvision]

You're most welcome!

[BigAl3D]

Yes, flicker free is necessary, but I thought that was more to prevent the noise from being different per frame and dancing, no? Your animation "feels" like it's reflections from something shiny we can't see. Almost like a caustic effect. Is there a reflective surface or water off camera? Just curious.

[Cinemike]

Yes, flicker free is necessary, but I thought that was more to prevent the noise from being different per frame and dancing, no?

This would be "lock sampling pattern" in the performance settings tab.

[Tazok]

This would be "lock sampling pattern" in the performance settings tab.

Ho thanks you're answering my next question without asking it :D

[Tazok]

Yes, flicker free is necessary, but I thought that was more to prevent the noise from being different per frame and dancing, no? Your animation "feels" like it's reflections from something shiny we can't see. Almost like a caustic effect. Is there a reflective surface or water off camera? Just curious.

There is a glass table not far but i don't think it can react here. No nothing particular, at first sight anyway

[BigAl3D]

Makes me wonder when would you ever want to turn "lock sampling pattern" off? Seems like something I don't want.

[romullus]

Makes me wonder when would you ever want to turn "lock sampling pattern" off? Seems like something I don't want.

Random noise pattern is crucial if you want to denoise image sequence outside of Corona.

[Cinemike]

Makes me wonder when would you ever want to turn "lock sampling pattern" off? Seems like something I don't want.

Quoting maru from this forum:
"Lock sampling pattern" only affects the pattern created by the noise for each rendered frame.
It should be on if you are rendering an animation and do not intend to use denoising, or if you are using one of denoisers in Corona.
It should be off if you are rendering an animation and you are planning to use a 3rd party denoiser which expects noise pattern changing for each frame.

[BigAl3D]

Ah good info to know. Thanks. One day, I'll actually read all the material for at least one piece of software I use. Maybe.