When the Engine Scaleability Setting of Anti Aliasing is set to High or higher using a post process material will result in jitter:
That is the Scene Color pass.
The only scene texture pass that doesn’t seem to jitter seems to be the final pass: Post Process Input:0
Go to your Post Process Volume in your map (the one that is unbound) and change Anti Aliasing settings. I think one of them fixes this problem. Though I am not sure how it effects the rest of the world. If there is any other way, I would like to hear it aswell!
Temporal AA is a method of Antialiasing that jitters or super samples the pixels immediately around the rendered pixel to take an average in color information and thus smooth out the jagged edges. This occurs after most but before some post processing in the Render Pipeline. Depending on where you have your Blendable happening (Before or After Tonemapper), you will end up either jittering the Scene Twice (which is what you are seeing in the above image. FXAA (Fast Approximate Antialiasing) smooths based solely on screenspace pixels while not as defined as Temporal AA in its evaluation of edges, it does not require Screen JItter Evaluation either.
I highly recommend taking some time to read Brain Karis’ Powerpoint on the development of Temporal AA, found here:
https://de45xmedrsdbp.cloudfront.net/Resources/files/TemporalAA_small-71938806.pptx
Thank You
Eric Ketchum
Yea, seems the issue is with Temporal AA. When I set it to FXAA it works fine. I don’t know what is the difference either.
Ok, thanks.