How to remove fireflies while keeping the lighting and resolution?
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[How to remove fireflies while keeping the lighting and resolution?] I've tried firefly enable, and I'll be letting it render longer. Anything else you guys know, or that I might be overlooking? Thank you!
Post edited by Richard Haseltine on
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Comments
Assuming you have an nVida GPU that will handle the scene have you tried the new denoiser in the 4.11 Public Beta?
Fireflies are one thing and occur in one part of a render.
Uncoverged pixels are another thing and occur more broadly across the whole render.
Do you know which you have?
Oh those fireflies not the 3D models of bugs! So I am confused.
"...while keeping the lighting and resolution?" -- that's tricky. Usually adjusting (increasing) the amount of light or changing the HDRI map (if you are using one -- to a higher resolution map) can reduce the number of fireflies. The other trick is to double/quadruple the render size dimensions and then take the final rendered image into photoshop or Gimp and reduce its size by half. But if you can't change these two parameters (lighting and resolution) then you could always take you final rendered image and eliminate the fireflies manually using the clone brush in photoshop.
One trick that I use for static images is to render about 50% larger than I want my final image, then scale it. The downsampling of the pixels will average out some of the noise, althought it may not completely eliminate it. That's harder for animation of course.
Another is that if you want a dark / high contrast picture, render with more light and then adjust the exposure in post processing. Learning to use canvases and layer the images in post work can also help a lot to maintain your desired look but improve the overall quality.
Put more light into the image and use tonemapping to get the final effect. If the render hits the time limit, allow more time.
If you have Photoshop Creative Cloud, you can use a color range selection to select just the individual firefly pixels in your finished image. Then, use a content-aware fill on them.
Here is an interesting take on the topic: https://thinkdrawart.com/why-is-there-noise-in-my-daz-studio-iray-render-and-how-to-remove-it