Animating Conveyor Belt?

[Anonymous]

Hi so I am new to this what I am trying to get is a Conveyor belt animating just like in the supermarkets/factories the thing is I am trying to roller it on its y-axis just like rotating without moving I tried a lot of things 

1.change pivot place didn't work it still moves to other sides

2.tried freezing translate pivots didn't work it didn't change anything

3.adding wire and make it rotate I followed this tutorial https://www.youtube.com/watch?v=Hu4-XTNbV0s I arrived to this point where to change "dropoff distance" but it seems it ain't there

A tip I didn't find output so I clicket input

(if u could find another solution to make this type of animation plz don't hesitate to tell me)

[Anonymous]

No, I meant that I cant keyframe them to work in the timeline

[hamsterHamster]

Timeline is not a dedicated animation editing tool, however you can see the keys if you select curveWarp node. Try to get used to GraphEditor, which is true animators tool.

And you can add any number of custom channels to the objects, like belt or some control gizmo, and connect to the offset attribute.. then it will show up keys in timeline as you select it.

[Anonymous]

I totally get u the graph editor is better and I work with it but the idea is that changing offset gives a structural form meaning it could be used as an animation here is a video so when I am changing the offset it works but when I am trying to keyframe it to work in the animation It doesn't work or in other words, it doesn't rotate in the animation even when it framed, so my question is how to rotate in animation rolling animation example