I was casually gaming when I see all of these games suddenly having the exact same "Highlighting", that is weirdly smooth and kind of pleasurable to my eye
Ravenfield:
Roblox:
Lego DC Supervillian:
The first place I tried looking was google with just "highlight" "all games have the same thing" "all games have the same highlight" but I think because my brain is stuck with the word "highlight" that I cant think of any other words to search, I also looked in opengl (though I couldnt find any working links to docs or updates there) however when I first saw it I thought that it might haved worked by having multiple viewports ontop of eachother
tl;dr im seeing the exact same special effect in most of the games I play and would like to know its basic implementation or how it works