I have one semi-transparent (glass) mesh that is boolean substracted from a lower terrain mesh
This means that the base of glass mesh object exactly fits the top of terrain mesh object , so there are two coincident polygons, with different materials defining the junction of the two.
How do I prevent shadows and flickering appearing at the interface of the two adjacent meshes as a result?
I cannot either separate or push the two meshes together so that they no longer share a surface - because the junction is (and needs to be) live - per ArchiCAD normal SEO methodology. If I adjust the terrain, I want the glass to automatically follow.
Is there a materials based solution?