Hey there, so I'm using the manual section wipes, copied more or less verbatim from the example -> http://scrollmagic.io/examples/advanced/section_wipes_manual.html
I'm running into a bit of an issue though, ideally I would like to trigger an new timeline or add a class when each section comes into view. As I'm seeing it, since each section is technically in view only pushed off the viewport this become difficult.
I've tried using a dummy element and absolutely positioning it, in theory, where the section wipe would be in a usual scrolling context.
I'm not sure if this makes much sense, so if I can help by putting together a quick codepen, let me know.