Hi! Im trying make a Constructive Solid Modeling program in VC++. Now, i've kinda understood the overal algorithms for cutting up the intersecting polygons and so on, but i can't find any algorithm for converting a 3d-object into polygon B-reps (boundary-represantations). Can anyone point me towards such an algo? I have googled for a couple of hrs :( Doing b-reps out of a polygon with no holes in it seems easy enough. But with holes, i dont know. /T