How to have a rounded falloff for depth fade node in water shader?

Hey all, quick question. When using depth fade for things like water, there arises the problem of the ugly, straight line at the bottom of the water where it meets the floor. Currently, its just a straight line that follows the camera’s look angle, making it look very unnatural. See the image below to see what I mean. How would I go about making that NOT be a straight line, but maybe curved? Like a circle centered around the camera?

Notice the straight line cutoff at the bottom of the image. Would be nicer looking if it seemed rounded, at least on the edges.

https://forums.unrealengine.com/attachment.php?attachmentid=16299&stc=1&d=1415214894