Tom - yeah, its a kind of tricky thing to describe, when you have multiple projectors pointing at an object, i.e. you have a flat wall with a column in front, projectors mounted either side to fill in what would be the shadows from the column. the whole of the back wall is technically covered in light but the hard edges where the projector where it goes from single to doubled projectors. what i think i should have said is soft edge the perimeter of an object from a single projectors view
