Can i have problems using charactercontroller with a very little size of player?

Hello everyone, i want to use my charactercontroller in an universe like an ant. There can be problems using soo small colliders and collision?
Is better to create giant decoration and simulate we are an ant?

 

too small and too big can both be problems due to floating point errors.

In both cases it may be necessary to reset the origin of your world periodically. Thankfully this is something easy to google - pretty well trodden territory.

My hunch would be to make your character standard human size and base everything else from that. I'd expect to run into fewer problems in general that way.

 

Well, maybe i was using wrong words in google because i cant find experiences about that, right now im testing, using 1m in human model and 0.1m in ant model and there is no important issues. I dont wanna go to atom model

 

Making an infinitely large play space in Unity3D [Floating Origin] – Salty Hash

Origin-shifting in Unity : Unity3D (reddit.com)

If you do run into issues, links to hits when I searched "Unity origin shifting".