ok, Object3D extends Sprite.
why does the blendMode property do not apply blendmode then ??
for (var i:int;i< 10;i++)
{
var sp:Sprite = new Sprite();
//addChild(sp);
var plane:Plane = new Plane();
plane.material = btm;
plane.name = "plane";
Object3D(plane).blendMode = BlendMode.ADD;
plane.y = 20;
plane.width = 1000;
plane.height = 1000;
//plane.sortType = MeshSortType.BACK;
plane.segmentsW = 8;
plane.segmentsH = 8;
plane.rotationX = Math.random()*180;
plane.rotationY = Math.random()*180;
plane.rotationZ = Math.random()*180;
scene.addChild(plane);
}