Managing Pixel/ Aliasing Flicker

Question

Hello!

I have a 3D rendered comp from C4D that has some very small details that I believe are flickering due to being split across a small number of pixels. I am not 100% that this is the issue, but it is definitely causing some problems when I go to add VFX and in general when they are being displayed. I don't really have an opportunity to render them out again, but I was wondering if there is any way of mitigating this pixel flickering issues in post? I have included a sample of the problem here, you can see the flickering happening on the smaller ships far off in the distance. Thanks for your help!

Mylenium · Answer

You could try to stack multiple duplicates of the layer and apply a bit of creative masking to bump up opacity of the distant ships, then fix the harsh edges with a subtle Simple Choker or dark Glow, but overall this is simply massive undersampling that can only be fixed by re-rendering the whole thing with settings for actual samples cranked up considerably. It's inherent in how 3D renderers work - the engine simply runs out allocating samples and then you get color varioations because there's nothing to interpolate for the antialiasing algorithms.

Mylenium

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