Is there a way to generate an area by connecting points?
I have got 3 lights and I want to connect them and use the resulting shape as a mask.
So I need a filter that connect points and fill the area at least.
As far as I know, there is no way to connect mask points with something by expressions, right?
there is a script that will connect a mask vertex to a 2d point (like position). however, you'll need to convert you 3d light's position to a 2d position (presumably a null) since i don't think the script does this. you can do that with an expression on the null... some thing like this (from motionscript.com) should do it:
target = thisComp.layer("UL"); // change this to one of your lights
or, if you don't need a mask, but could use a layer with the corner pin effect, then you could just use that expression as it was originally used: