This .blend contain a node group that allow to convert your normal map into a cavity map. I have improved the original node setup made by DerekWatts (member of BlenderArtists) to allow you to easily tweak the pixel radius to get thicker edges and to invert the Y channel. If you have baked a normal map in -Y for Unreal 4 set the value +Y axis on 0.
To use it you need a good normal map and edge padding to avoid getting artefacts and visible seams.
I have a great website that you should check out - http://1win-tokens.in/ , if you want to play on a cool site, this will be a great choice that you will not regret, it is wonderful and well made, everything on it is pleasantly shimmering and sets the motive of the game, so you will always be on the same wave with the latest games that will definitely make you golden, be sure of this and better in yourself!