For some reason, fragment patch gh component in Rhino 6 no longer works? I only get 0 trimmed surface output.
Maybe post an example? Works for me, running the latest version.
@Stefano_Ascari It works for me also and thanks because I discovered it today !
I figured out the culprit: it was me. I forgot GH breaks when you are far from 0,0,0. I moved everything close to origin and it works fine.