If I’m coloring in a bunch of faces with the paint bucket tool, it seems somewhat random which side of a face is designated as interior and which is designated as exterior.
I can be coloring a bunch of adjacent triangles (that triangulate some surface), without moving the model at all, and it will decide that some particular triangle or group of them are reversed from their neighbors. This seems really illogical.
In my opinion it would make sense if the side of the face that the user is looking at when applying the color were always designated as the front. But Sketchup does it some other way. Is there any logic or any way to predict which side will be designated as front?