Hello, I have the following problem. I have shot a video clip whil it was rainig a bit . so 2 little drops of water wehere recorded on the shot ( on the lens).

To remove this I used lenear blur and cookie cutter to make a rouded blur bluring the drops away. it works perfectly.
But to do this I had to duplicate the video put in on top of the orginlal clip and then ad the fx on the top layer.( otherwies the cookie cutter just shows a black hole)
So here coms the problem there are of cours 2 drops, this has to mean that every time I have to put A clip on top and do it again.( cookie cutter kan be only plied ons in chain)


But I have heard that you can put the fxs on a empty layer? above the clip?so "blur and cookie cutter in this case?

But I have tried this but when I put the parent and child option the monitor just shows black screen, also when I ad fx on the top track, also when I ad fx on the mask thing whtch is in between parent and child.

Can someone please explain how I kan doe this? I just want to blur 2 spots on the footage, dut stacking 3 video clips to do this is too much for my P4 system. and rendering time

Please help, Thanks