file: https://www.mediafire.com/file/l76zle988pa5fq2/caustic.blend/file
2 Likes
nice effect
is it wave reflected on the bottom ?
any tut on this ?
is it artificial or real caustic ?
thanks
happy bl
yes, there are two caustics there, one made by waves (dynamic Paint) like this:
the other is just a voronoi node with some math, but, yes both are applied only to the object above and reflected below…
and I’m also doing a third! with ocean modifier and some shader:
I made one fake caustics node setup based on your scene, but my setup is completely different. It works like yours using dynamic paint to produce the effect, but I have used less and different nodes. I think the result is smooth enough.
Check it out:
2 Likes
Really nice! That reminds me, some time ago I was looking for a way to project caustics underneath a bridge, on the bottom part, so reflection from the water. Does anyone know of a way to do that? Preferably in a way that can be applied to complex geometry, maybe projected by a light? I tried for a bit but then had to move on bc of time constraints…
Sadly, it does not work to fake reflective caustics.
it’s cool dude, that’s it continues 
Yes that’s exactly what I meant. Cool! How’d you do it?
in this case I just changed the direction of the lamp, but as you can see in the second image there were some problems … maybe a new node for this specific type of situation …