If I have a comp that is used more than once at a later time in the project or comps that don’t start at 0 then the “AtTime” part of the expression kinda throws it off. Since I have many comps within comps, it’s verry difficult to try and match the timing of each comp for the expression to work.
Would you happen to know if there’s an alternative to sourceRectAtTime? Because it works great , but if I have things in multiple comps at different times, then it has issues.
It looks like you are correct in that the intro layer is over the video layer, but I don’t think it gets transparent. It looks more like the rectangle is a shape layer with a large stroke and no fill, then being scaled up and opening to reveal the video beneath it.