hey guys,i try to place a gradient ball over another sprite and set the ball's blendmode=eraser
in FLASH,it's works fine and looks like this
there is three layers,the red things is in the middle,notice the right bottom area,that's gradient ball,and its blendmode has been set to eraser already
but the familar code when i wirte in flex project.things gonna wired,and run out like this
i just do the totally the same things,i even place all displayobject into a sprite and then finally place into a UIComponent.try to make thing in the same way.but it just work like this.i don't know why its happen.