Scrolling a gltf object with the scroll to a certain position and lock it there

[ricardoroukos]

I’m trying to do an animation for a glass of water so that when scrolling down i have the glass scroll down with the page until it reaches a certain position that i chose… then i want this gltf model to stay where its at as i continue to scroll down … as if the camera of the threejs renderer is going down with me … please help