Hey, how do i add a LOD0 automatically and add the childs as renderers ? currently i test with this script: https://docs.unity3d.com/ScriptReference/LODGroup.SetLODs.html but it always adds me 4 renderers, dont mater what i change in script, and it do not add the childs.
Did you read the manual on how to use it? All you gotta do is select the LOD level by clicking on the relevant color bar you use to set distance threshold and then click the + icon to add a game object to that LOD level
The manual specifies how to make it automatic by using specific names on your FBX objects. I just tested it and it works fine: as many names as you make, that's how many LOD levels you get.