Rule 3: Angle Exemption

Has anyone documented Rule 3: Angle Exemption? I'm confused by the diagram in the reference guide. It is a plan view, correct? It seems like any recessed fixture should be exempt, but apparently this is not the case. Does rule 3 mean that recessed lighting fixtures should be perpendicular to solid walls, or greater than 75 degrees separation from glass? ie. if the lighting fixture is inline with a window, than it must meet rule 1 also. is that correct? this is another credit that a year ago, reviewer passed with photos of recessed lighting and no diagrams, but now, they need calculations for distance of fixtures to glass. if I prepare theses diagrams for a 14 story building, how many do I need to show? there are LOTS of lighting configurations.