ScrollTrigger - Pin sections and reveal the second layer over the first

[shubhra]

Hi, hope everyone is doing great.

 

I would like to be able to achieve an effect that is done with scrollmagic but with scrolltrigger.  It layers 2 images on top of each other and the second image is hidden. But when you scroll the second image and section is revealed on top of the first section. You can understand the effect more from this gif - 

 

 

I hope its not too much of a trouble and I can get a starting point here as I am not very good with code. Thank you so much. Have a great day!

See the Pen LYoGzwy by shubhra (@shubhra) on CodePen.

[Cassie]

Here you go!

 

This one should get you started

See the Pen oNjgEjm?editors=1100 by GreenSock (@GreenSock) on CodePen.