Can I use mesh particles to fill objects?

So far, I’ve got a box that I just want to fill with random junk, so I figure I could just use mesh particles. But my meshes just clump together. I’d rather have them act as physics objects. Can I do this with the particle system or should I just make a blueprint?

Particle effect can be made to use GPU so that they are less CPU Intensive however you won’t have much control over their physics behaviour in runtime.

Game actors simulating physics will be more expensive that particle FX but you can have a lot of control over their behviour.

So depending on what you want to fill the container for you can use one of them. If you want to fill the container and then stop the simulation for things inside and carry it around then using actors is better approach.

I would make pre-modelled groups of junk, since seperate meshes + each their own material will increase drawcalls.
Same with particles, each seperate mesh is a drawcall.
Making them pre-combined results in the most optimal solution.

Thanks for the reply. I’m fine with using particles but it doesn’t seem like I can enable gravity. Velocity just forces the meshes through the object I want them to be in. Guess I’ll try to do this in blender.