For my shower water I studied multiple images of shower heads with water. The thing is, when the water comes out of the head it starts as a solid line of water and the further it falls down the further it breaks up in shorter parts. The parts get shorter and thicker the further they get down. They have to be almost down before they resemble a droplet. That is because of the cohesiveness of water. The result is that what started as a thin line becomes at least three times thicker once it gets down. To make it even more difficult is that usually the spray spreads out to a wider pattern.
Basically that is the problem with creating shower/jet water: it changes on the way down. You would have to create many different stretches and drops to get something that resembles real water.
Most on-line tutorials are for lakes and oceans, not for shower water.
I have thought of using the photo-on-a-box method but that has it's own problems. Maybe it's an idea to try an AI and let that produce a Wavefront obj file.
The author of this shower on sketchup had the right idea but he failed to execute it realistically.
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