How to separate colliders from gameobjects to new gameobject?

Unity Engine
1

I have a scene with over 1000 static game objects, all with colliders attached. I need to combine meshes to improve performance, but when I use simpleLOD to combine meshes, the colliders are gone.

Is there a way to get all colliders in a scene and put them on empty game objects? That way, when I combine meshes, I will still have the colliders. Any other ideas are welcome.

2

sounds like you’re either going to need to:
a: do it manually one at a time by copying the component into a new empty game object or
b: write an editor script to do it for you.

with a 1000, I’d try option B

3

Thanks, I’m going with option B. It seems the colliders are not gone, but since the child game objects are turned off, their colliders are as well. All I need to do is get the components in children and setactive, then turn off the mesh and anything else that’s not a collider.

Here is my temporary solution:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(turn_on_colliders))]
public class Colliders_Script : Editor
{
    turn_on_colliders colliderscript;

    public override void OnInspectorGUI()
    {
        DrawDefaultInspector();

        if (GUILayout.Button("show_colliders"))
        {
             colliderscript.turn_them_on();
        }
    }
}

where it accesses this script:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class turn_on_colliders : MonoBehaviour
{
    public void turn_them_on()
    {
        Component[] components = GetComponentsInChildren(typeof(Transform), true);

        foreach (Component child_object in components)
        {
            child_object.gameObject.SetActive(true);
        }

        Component[] meshChildren = GetComponentsInChildren(typeof(MeshRenderer), true);
        foreach (MeshRenderer mesh in meshChildren)
        {
            mesh.enabled = false;
        }
    }
}