Im having trouble with masking regions...
I have a wall based ceiling fixture and I don't want the 3d geometry to display in plan, but symbol lines instead. Fine so far.
My symbol is a simple square, but I don't want my ceiling surface pattern to display inside this box. I added a masking region that is associated with reference plane: bottom of fixture, so im positive that is at correct height (and above cut plane). In plan view, my family perfectly masks the floor surface pattern, but in RCP the ceiling surface pattern is visible through my fixture.
Masking region is set to draw in foreground
Any ideas?
