hi everyone: i add two actors to a renderer(actor1 and actor2),then set the opacity of actor1 to 0.8 . but at the intersetant area of actor1 and actor2, the actor1 can not be see at all. why? what can i do to make the actor1 visible at th4 intersectant area? jiang-gx jxjx at sjtu.edu.cn 2004-08-03