Just grab some random waterfall video from vimeo, cropped in after effects. Then extract the white color leaving just the waterfall.
Exported as png secuence with alpha channel.
In a plane sligthly modified to the shape of the waterfall mapped the png secuence in a corona ligth material with opacity. WORKS LIKE A CHARM!!!!.
Check this preview:
*UPDATED*DISCLAIMER: ABSOLUTELY no post pro where harm doing this preview... just Corona raw crude awesomeness.