[PCG] Filter all interior point

Hi,

I’m having a blueprint to model a mission the player need to accomplish.
I’ve created a box to delimitate the mission location.
I want to physically delimitate this location by spawning meshes on the boundary.

I know how to use spline sampling, but I don’t want in my case has I would need to place spline points correctly each time I add that mission blueprint.

At first i want to sample points on the box collision and project to landscape but I haven’t found a way to do this.

Then I wanted to do a surface sampling, and then remove interior points.

I was able to spawn the points:


But now I don’t know how I can efficiently remove all interior points (and keep only points). I could project all element on a plan at fixed Z and then do a convex hull, but it sounds overkill