[problem] Animation with roughness materials flickering

[NeM3Si]

Hi all,

I've a problem with a simple animation and roughness materials, as can you see in the video that i post as exemple, my materials are flickering , every frame is different from the previous in terms of light and i've no idea why. i'm rendering with DL , and with PT is the same, only in PMC the situation is better but sustain. i've tried to change the kernels, the lights and the materials but nothing... i 'cant resolve it.

can you help me? i post also the cinema4d project as you can try.

many thanks

http://www.filedropper.com/dominoeffetto
http://www.filedropper.com/prova_8

[DinoMuhic]

without looking at your file I would first check if "Coherent ratio" is set to some value more than 0?

If it is, set it back to 0 or use more samples to clear out the picture.

Or your scene scale is not "normal" and you need to play with the ray epsilon....

there are NO other reason why it should flicker.

[NeM3Si]

it works! the problem was the Coherent ratio . i don't understand how works but i will use it at zero ever.

thanks!

[mojave]

Here you can find more information about coherent ration in your kernel settings:

https://docs.otoy.com/Cinema4DH/C4DPlug ... t=coherent ratio