Waterfall

[Ryan Hill]

Cheapest way, immitate a motion lamp. Superimpose little wavy lines and move them down.

If you want to get a little fancier, paint a few seperate overlays based on the photo. Make one kind of white noise, one looks like the reflected sky, and one look like there’s no water at all. Make masks for all three so it closely matches what you see in the photo. Slide the white noise down, and slide distortion maps that you apply to the other two.

Failing that, smooth out the white water in the photo, and add dark particles that follow the shape of the falls, masks so the particles only appear where there is white water. Then add some light particles to make mist coming off the falls.

Those are some ideas.