Distant flickering lights

[stevesideas]

Is there a way to stop the lights flickering in the distance ?

Current render settings are:

[stevesideas]

https://vimeo.com/251616806

[stevesideas]

I'm also using vrayaerialperspective to simulate a distant fog. Turning this off reduces the flickering substantially but there is still some there. I need to use vrayaerialperspective as this gives the entire scene a final look.

[Vizioen]

Put lightcache to 3000 and retrace to 8.0. Also a noise threshold of 0.025 and such a small resolution isn't really helping to determine correct settings

[stevesideas]

Cheers. I'll try that. Do you think it could be anything to do with light evaluation set to adaptive or just a sampling/LC issue ?

[stevesideas]

So. I've tried those settings but it doesn't make any difference. I've tried lowering the noise threshold to 0.01

[stevesideas]

BTW. The full resolution of the image is 1920x1080...this is just a small section from it.

[stevesideas]

okay. That didn't work either. I've run out of ideas....apart from render at a higher res but then that will take forever.

[Macker]

Use DOF to blur the lights in the distance? Use a softer AA filter?

[stevesideas]

I think it might be linked to the light evaluation. I've tried raising it from 8 to 16 and the flickering reduces. I'm trying 32 now to see how that looks.

[stevesideas]

It was a combination of raising the min subdivs, max subdivs, adapative light amount (biggest effect). All solved now but I think the render will take quite a bit longer!