Are my bounds right world position in this case ?

Questions & Answers
1
  • I use script on prefab to instantiate many block to make rooms.
  • I use a script to make bouds = of all instantiated children block of piece.
  • My debug give good value ( i think ) in console.
  • But is the white draw good value ? Why all go to 0 0 0 world ?

98199-03.png
98199-03.png1901×1064 333 KB

Script is here :

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

public class bound : MonoBehaviour {
  void OnDrawGizmos()
    {

        Bounds bounds = GetChildRendererBounds(gameObject);
        Gizmos.DrawWireCube(bounds.center, bounds.size);
        Debug.Log(bounds +","+ gameObject);
    }

    Bounds GetChildRendererBounds(GameObject go)
    {
        Renderer[] renderers = go.GetComponentsInChildren<Renderer>();

        if (renderers.Length > 0)
        {
            Bounds bounds = renderers[0].bounds;
            for (int i = 1, ni = renderers.Length; i < ni; i++)
            {
                bounds.Encapsulate(renderers*.bounds);*

}
return bounds;
}
else
{
return new Bounds();
}
}
}

3

Your combined bounds look like they somehow include the world origin as well. However your code specifically avoids this since you correctly start with the bounds of the first and then combine with the remaining.

I think your problem is that your parent object also has a MeshRenderer but that doesn’t seem to have any mesh. That’s why the bounds of the parent most likely is an empty bounds located at worlds “0,0,0”.

“GetComponentsInChildren” also returns components on the actual object, not only components on children. So you also process the MeshRenderer on your parent object.

Since you don’t have a MeshFilter with an actual mesh to render on your parent you might want to simply remove the MeshRenderer from your parent as it serves no purpose besides causing trouble.

2

Ok my bounds are wrong in console to, center is center of bounds we show with white draw.