How to active a frame by frame animation by scrolling down the page?

Design help Animations & Interactions
1

Hello, I made an animation and I want it to play when my page is scrolling down. More like a parallax animation. I know I would have to export my animation into a PNG sequence but I’m not sure how to code it. Please help?

Here is my public share link: LINK
(how to access public share link)

2

Please check out this topic.