I used to (in CS and CS6) make simple animated GIFs (2-6 frames) by creating the basic shapes in Illustrator, saving snapshots of the different iterations as still GIFs, then pulling them into PS to create layers from which I made & tweaked the final animated GIF.
Now how do I do it? I don't see any thing in PS CC to address this layers to animation.
Now how do I do it? I don't see any thing in PS CC to address this layers to animation.