I want to apply motion tracking data to a mask, therefore i'm trying to utilize an adjustment layer to control the mask position. So i tracked motion on a video footage, applied tracking data to Adjustment layer, then marked the Adjustment layer and drew a closed mask on it. However, when i finish the mask, it does not "cut the hole" on the video footage (which is right below the Adjustment layer). Tried all the available modes (Add, Subtract, Intersect, etc.) but only the outlines of the mask's shape are visible on the video footage.
How can i apply a mask to an adjustment layer? Or maybe there are other methods to apply motion tracking data to a mask?
I think that you're misunderstanding how masks on adjustment layers are supposed to work. If you draw a mask on an adjustment layer, you are restricting the area within which the effects on the adjustment layer apply; it does not, as you say "cut a hole in the video footage". If you want to "cut a hole in the video footage", then you make the mask on the footage layer, not the adjustment layer.
Adjustment layers are for applying affects not necessarily alpha channels. You could simply turn off the adjustment layer switch and then use the adjustment layer has a track matte.
thank you Rick, it works