I’m sure I passed something before but no luck atm. If I have a bendy river, how can I animate texture to flow along with it not just in one direction?
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You can do it with a spline mesh, as long as you have the ripples going along the X axis of the plane ( that you use as a mesh ).
The Unreal water system has support for rivers, which does this for you.
If you want to model the river yourself, you can use a spline and extrude geometry across it, which will generate flowing UV coordinates that you can then animate.
True but I don’t think that was it. I think it was something to do with Vertex colors, maybe including Nearest Distance.
Flow maps will do this, but if you have a river thats set up as a mesh on a spline, the spline will already take the water in a specific direction complete of bending.
The two should be used in conjunction really.
To have it go around rocks and geometry you can output the mesh distance fields into the flow map (properly adjusted for it), and it will work.
Further, you can levarage vertex paint to offset the flow map some more - but doing so obviously has less of an effect than the other options.
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