What is a Gravity Group in geometry collection settings?

There is a setting in geometry collection called gravity group. What it does? How does it work? How to create these gravity groups?

Tried to go through a C++ code but there is a long long chain with gravity group setters, and i couldnt find the start of it


It’s not an object / class. The gravity group is just an index variable.

okay, but where do i define these groups? If i get it right, gravity group is an index of some gravity profile.

index 0 has -980 lets say, index 1 will have -200 and so on. How do i create these?

if what ive said is a mistake then whats the purpose of that thing

There isnt much in the source that show this. It just sets the index for the physics proxies. The most info is inbthe Niagara particle system that it can influence specific particles. It may be scafolding for a future update of chaos.

There is only a chaos union object that also uses it, but it’s not exposed to the other systems.