Unity – resizing particles dont mantain collisions properly

Unity – resizing particles dont mantain collisions properly

I am trying to make particles for blood on death. This is what I got so far:

Which looks fine and all. But now I also wanted to make the blood particles turn smaller over their lifetime, so I checked "Size over lifetime" and this is what happens now:

See the problem? As they shrink, they seem to float a little, giving some space between the floor they are laying on. This behaviour is not really desired.
How could I solve this?

Solutions/Answers:

Answer 1:

Reduce the radius scale value as needed. Tweak how near you want the particles with the value.

enter image description here

You can change particleSystem.collision.radiusScale in runtime to avoid sinking.

References