Unity3d之求物体体积

Renderer[] renders = GetComponentsInChildren<Renderer>();

if(GetComponent<Renderer>()!=null){
System.Array.Resize<Renderer>(ref renders,renders.Length+1);
renders[renders.Length-1] = GetComponent<Renderer>();
}
Quaternion ori = gameObject.transform.rotation;
gameObject.transform.rotation = Quaternion.Euler(0,0,0);
foreach(Renderer render in renders){
Vector3 vmax = render.bounds.max;
Vector3 vmin = render.bounds.min;
xmax = Mathf.Max(xmax,vmax.x);
ymax = Mathf.Max(ymax,vmax.y);
zmax = Mathf.Max(zmax,vmax.z);

xmin = Mathf.Min(xmin,vmin.x);
ymin = Mathf.Min(ymin,vmin.y);
zmin = Mathf.Min(zmin,vmin.z);
}
BoxCollider collider = gameObject.AddComponent<BoxCollider>();
Vector3 s = gameObject.transform.localScale;
Vector3 c = new Vector3((xmax + xmin)*0.5f,(ymax + ymin)*0.5f,(zmax + zmin)*0.5f) - transform.position;
collider.center = new Vector3(c.x/s.x,c.y/s.y,c.z/s.z);
collider.size = new Vector3((xmax - xmin)/s.x,(ymax - ymin)/s.y,(zmax - zmin)/s.z);

transform.rotation = ori;