Particles not colliding with SM in Blueprint

Development Asset Creation FX
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1

Hi everone,

I’m currently trying to setup a small Cascade particle system in my level.
The Particle System is currently set to CPU and the particles set to freeze on collision
This works fine if I place the Static Mesh, I want them to collide with, in the level directly.
“Unfortunately” the Static Mesh is used in a Blueprint Actor which is placed in the level (adding some functionality to it).
The problem is, that the particles won’t collide with the Static Mesh that’s inside the Actor and I can’t seem to find any setting related to it.

Does anyone have an idea how to resolve this problem?

I thought about trying the same setup in Niagara to see if there is any difference. But a solution in Cascade would be prefered…as it’s a super simple setup. And I wouldn’t want to just activate Niagara for that.

Cheers and thanks!

2

Have you added collision to your particle? Because I just checked what you wanted and its working on my end, only when particle collision is enabled.

3

Yeah I added the collision module and set it to freeze. As pointed out above it collides fine with normal Static Meshs, but as soon as the Static Mesh is inside a BP Actor the collision gets ignored

4

There a chance you have collision problems with your actor, I do remember that its little bit finicky especially if the actor is a character(if that the case play with the root collision as well). Do try to play with the collisions and see if that helps, because its really weird that it works on world but not BP.