How to access Niagara data interface vector field from outside the particle system?

[sebastianhannula]

Hi, I am trying to change the vector field that my Niagara particle system is sampling from a blueprint or c++.

Here are some pictures of what I am referring to:

I have defined a user-exposed vector field parameter under the data interface category and now I would like to find a way to change this programmatically. I am quite new to Unreal Engine and I don’t know how to achieve this. Any help would be appreciated!

[Trastrastras]

Can help this?
How can I change Niagara variables via blueprint?

[sebastianhannula]

Thank you for answering! The issue here is that the only parameter types supported here are (Actor, Bool, Float, Int32, Linear Color, Quaternion, Vector 2, Vector 3 and Vector 4) as pointed out in the solution to the post that you linked. The type of my parameter is Vector Field which is not supported by these built-in functions at least directly.

[sebastianhannula]

Any ideas, anyone?

[sebastianhannula]

Solved it. There is a node called Set Niagara System Asset which indeed is a built in function to acheive exactly this. However, I find the name a little misleading and didn’t think of looking in to it before Well if anyone has the same problem in the future, here is the solution!