Multiple Alpha Matte

[Ray38100260gxw2]

I have an arrow that I need to appear from the bank of the water and rise up which I have done. I have Shape Layer 1 that the arrow comes up from. The red arrow is set to Shape layer 1 and the Alpha Matte is inverted.

I have Shape Layer 2 which is the blue square above the arrow. I want the arrow to disappear behind that box. I want to make a continuous loop of the arrow rising and dissappearing.

Best practices?

[thepixelsmith · Accepted solution]

Normally I would suggest adding the two different shapes to the same shape layer and using that shape layer as the track matte.

You can copy/paste a shape from one shape layer to another.