Decals Distance Field

Hey guys,

I am trying to have some decals fade in where the decal object intersect with the landscape but I don’t understand how it works internally as when using that method with a simple plane it recognizes the intersecting areas just fine as seen on the screenshot but for decals as the decal itself is projected onto the landscape I guess it works a bit different so I get these squares like intersecting itself or it feels more like that is cause by the landscape resolution quads? I tried to find a way to turn off the Affect Distance Field Lighting to prevent from intersecting itself but decal actors do not have that. Anyone experimented with this before or have any idea how to have some fade in decals based on distance from objects or depth?