Is there a way to do overscan ingame?

I am using ue4’s ssgi, its pretty good, but it looks bad at the screen edges.

Is there a nice way to do overscan in game? Meaning the viewport renders the scene with a wider fov than is actually displayed, in order to improve screen-space effects.

you could do that with a postprocess shader. you’ll sacrifice render resolution tho and it will blur slightly.

I already know of the tequnique, however its a very unideal and hacky method, as it breaks some shader functions, and also bp functions to do with converting screenspace to worldspace.

Also, you can infact do this without sacrificing resolution. You just have to set r.screenpercentage to more than 100%.