Chaos Corona for Cinema 4D > [C4D] I need help!

Get Rid of Fireflies in Animation

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BigAl3D:
I love Corona, but damn if I can't avoid fireflies to save my life. I will upload a scene after I post this. As you can see in this clip, I have fireflies all over the place. I will admit, on the first clip with all the trucks, I had some old chrome materials that were set to 999 IOR reflection. I fixed all of them and you can see in the single truck test, I still have fireflies in many other areas that have much less reflection. I'm assuming reflection is the main cause, but I'm only guessing. The full truck shot is using a simple Physical Sky with basic settings.

The full shot used 15 passes with High Quality Denoising. I also tried Noise Level limit of 5, 4 and 3 with either no change or even more fireflies. Clearly, adding more passes isn't the solution as far as I can tell. The step below the door of the truck is really bad. Upon closer inspection, I'm guessing the source of the fireflies there is the pill-shaped bumps, which are actual meshes and not Displacement.

I'm open to all suggestions.

Cinema 4D r20
MacOS 10.15.7 Catalina
Corona v7 Hotfix2

BigAl3D:
File name of upload:  Firefly Problem.zip

Had to use Dropbox. The normal uploader just hangs and takes too long, so the Captcha expires. Tried this in two different browsers.

burnin:
Render settings / Corona >
/Frame buffer  set.

on an 'Image filter' there's a Highlight Clamping option - set it wisely ;)

BigAl3D:
Oh my God. In my initial test, this worked! I also read in the help that I should be using the Tent setting for Image Filter set to 2. Mine was set to High Quality. I set the Highlight Clamping to 2 and so far it seems to have worked. I'll render the full lot again and report back.

lollolo:
Have you tried Intel or Nvidia denoiser?
They can handle fireflies much better than Corona denoiser. So I would give them a try.

My choice is Intel. It outperformed Corona in all of my tests.

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