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Particle noise

Hello everyone with my first post on this forum,

I’m starting my adventure with UE 4, and so far I just love this engine! I’m very much interested in building real time effects, so I started with simple particle systems, and already I’m stuck with such a trivial thing like making my particles being blown by kind of a wind force with noise in it. In other words I have a snow falling, suddenly a wind blows in x direction, the particles start swirling in turbulent noise fasion while being pushed to the side, and then they calm down and fall back on the ground like they used to before the wind blown. In all 3d apps it is super easy to achieve with noise parameter on the wind force, but I can’t find any answer on the internet how to do that in UE4. Please help!

ps. My target system is Android in case it matters.

Cheers,
Benio

I’m not sure how well they will work on mobile, but have you looked into vector fields? Check out the content examples to see how they work.

Hi Wilkes,

Thanks for answering. That is what I was affraid of that vector fields are the only way to go here, since I couldn’t googlde out any other reasonable way of doing that. I think it would be a huge overshoot though to use vector fields for simple noise animation.

I did manage to get some noise using point position and feeding it to world position in material, and modify it with some functions like noise, but since I’m modifying the position based on it’s position I get sort of recursion ending up with random instead smooth transitions. Maybe there is a way to alter velocity instead the position from the material section?

Cheers,
Benio