I want to create a mask from an animated line. I found out pretty quick that you can’t use a line to mask, only fills. So, can I convert the line to a fill as it’s being drawn? Or do I need to put multiple instances of a shape along my line at intervals? 
I keep seeing requests for an animation of writing. I figured it would be easier to have the text in one layer and use the animated line as the mask. It sounded good in theory.
Any one have any ideas.
I’ve attached my test that shows the line being drawn. I was playing around with some different objects to use as masks and that’s how I saw that lines can’t be used as masks. I wish they could.
