14
$\begingroup$

Here's a portion of a render I'm working on, which is backlit from behind by a spotlight with a "Halo" effect applied:

Spotlight with halo

If you look carefully in the background, you'll notice the halo effect is creating "rings" of shadow as it fades. How can I remove these rings and make the halo effect fade out smoothly? I've played around with all the settings I can find without any success.

Here's my current settings for the spotlight:

Spotlight settings

$\endgroup$
18
$\begingroup$

That is a dithering problem. Which is not really a problem at all, but rather what physically must happen. That occurs any time there is a small change in color spread over a large area.

One of the ways to get rid of the banding is to make a stronger contrast, such as a pure black background.

The best way to deal with it. Is under the Render tab in the Properties window. Set the dithering amount up a bit until the color banding is not visible.

post processing dither

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.