[UE4] Curvature,convex and concave extraction from Normal map

Antut

Hello !
I need your help for a little thing.
I have made a Curvature extraction shader in UE4 that seem to work nice.

Here the shadergraph:


But when i want to extract the convex and concave edge,it's giving me something like this:



Do you have any clue ?

Obscura

What is your issue exactly?

Antut

When i extract the concave and convex from the curvature,this gave me some weird gradient and i want a nice sharp edge

I use a "subtract 0.5" for extracting the convex and an "add 0.5 > 1-x" for the concave,is this right ?
Maybe it's the texture compression ? The normal Baker ?

Obscura

Thats because the normal map is made out of gradients. If you want fully sharp lines, you could feed the result into a "round" node for example. or an IF.

Antut

Hum i have already tried but not happy with the result.i will investigate more.
By the way,thank you for your time