Hello,
For my game in UE, I want the player to be able to pour flour into a bowl. I tried using Niagara, with pretty big particles, but these don’t collide between them and they never “stack” in the bowl.
Has anyone a clue to give me ? 
Thank you
Hello there @bj_to0!
This is quite a challenge you are trying to setup here. Checking with my peers, for any matter that is to be poured, your best bet is using Niagara Fluids. The main conflict is that the feature remains experimental, so results may not be exactly what you are planning, or be fully documented just yet.
The fluids plugin has options for liquids, gases, and particles, so the right approach would be to use the system templates and adjust their parameters to create your flour.
There’s an extended learning path in the community, covering the basics for fluids, you can follow it here:
Looking around the community, the closest practical example I could find about pouring an element into a container, was one related to honey. It should be possible to implement the logic in this guide using particles, and creating a material similar to flour or sand, to achieve the effect you are looking for.
