To do this animation we need a picture obviously so we find one we would like to work with and lets open it.

Right click on layer and duplicate it.

When the pop up appears, name it 2.

Now lets go to Edit-Transform-Flip Vertical.

And this is what you get after you click OK. Next, we do Edit-Transform-Scale. Grab the picture by the marking that appears on the bottom of the tree and drag it down.

Until it reassembles this picture. Make sure you do not leave a gap between the two pictures. Once you are done, right-click on the layer you just flipped and choose duplicate layer. Name it 3.

Your layer window should look like this:

Select layer 2 and click on Filter-Distort-Ripple. When the pop up appears, copy the data in the picture.

GO to layer 3 and do the same as before. Make sure you changed the number.

Now to Image Ready. Select the first two layers and take the first frame. look at the picture to get an idea.

Now select the first and last layers and take another frame. Your animation will only have two frames.

Last, click on play to see your animation in action. Remember that you have to save your animations like this: File-Save Optimized as.