NOOB ADVICE ALERT:
I see at least 2 sets of emitters/particle effects in there:
- Sparks(Concrete Falling) (Material -> Burst.xml)
- Smoke (Material -> Smoke.xml)
I think the key parameters inside each particle effect would be:
<direction min="-1 -25 -1" max="1 0 1" />
<constantforce value="0 -35 0" />
These 2 symbolize like 2 vectors, where particles go initially and the force that is applied to them.
So in your case:
Smoke effect won’t have a clear direction(direction should describe like a ball, and force should not play a key role), I bet you can get the same as the Vehicle example.
But the concrete particles will do have tendency to be similar to a Vector3::DOWN(in fact similar to the example I wrote)…