I get his problem. the point is, he wants the bray what happens when two points collide. that longer lasting one, that slowly fades. NOT the one that aray delivers, the one that happens on aray beam collision. The one that cracker64 uses in his fax machine. . . . . . | - - - - + - - - . . . . .| . . . . (that plus is the bray he's looking for) Maybe there's a TMP value involved?