The Expression Session course on School of Motion is made to walk you through how to think like a coder & get started writing AE expressions, from the point of view of a designer / animator! Literally who it's targeted for

Full disclosure, I'm one of the instructors / creators of it.

ESTK was replaced with a plugin for Visual Studio Code: https://medium.com/adobetech/extendscri ... 2e1a068e89

I use Visual Studio Code, and have a writeup here: http://zacklovatt.com/visual-studio-code-stuff/ Also, Extendscript Toolkit is being EOL'd in favour of a VS Code plugin: https://medium.com/adobetech/extendscript-debugger-1-1-0-released-5f2e1a068e89 -- this will be the only officially supported way...

=> https://adobe-video.uservoice.com/forum ... er-effects

Take a look at "Displaying Images" in the Javascript Tools Guide: http://estk.aenhancers.com/4%20-%20User ... ing-images

This is an avenue you can explore, though doing this within a scriptUI panel may prove difficult; it may be worth exploring an Extension, as they come with an HTML5 frontend that could draw the rendered animation simpler than in extendscript.

Yeaa this is an annoying bug of ESTK. Occasionally errors that shouldn't be caught just... are. In my experience they usually only catch the first time, and after that it's fine and works as expected.

A better approach may be to use instead, and write OS-level commands to copy the file. This way is more robust and much more flexible.

Any sort of shared space is incidental, buggy, and shouldn't be relied upon. Don't do this.

Hey! What you can do: Create a slider on your layer Animate it from 1 -> higher Replace your expression with this one (below) Where I wrote {pickwhip slider here}, delete that and pickwhip the slider. function pad(str, max) { str = str.toString(); return str.length < max ? pad("0" + str, max) : str;...

The majority of "UI control" type things aren't exposed to the scripting API, giving us no way to play with things like that

While the system colour picker is fine, here's a scriptui-native solution that offers quite a bit more functionality (and platform agnosticism): https://github.com/smallpath/adobe-color-picker

What function(s) are you looking for specifically? In the sidebar here there are links to the overall Adobe Extendscript reference guide, as well as the AE Scripting Guide specifically. You'll find lots of documentation info there!

The check for null layer is just layer.nullLayer , not layer instanceof nullLayer (function () { var comp = app.project.activeItem; var layer = comp.selectedLayers[0]; if (layer.nullLayer) { alert('Layer is a null') } else { alert('Layer is not a null'); } })(); See: http://docs.aenhancers.com/layer...

Check this out: http://www.motionscript.com/design-guid ... -sync.html