Description

Represents an axis aligned bounding box.

An axis-aligned bounding box, or AABB for short, is a box aligned with coordinate axes and fully enclosing some object. Because the box is never rotated with respect to the axes, it can be defined by just its center and extents, or alternatively by min and max points.

Bounds is used by Collider.bounds, Mesh.bounds and Renderer.bounds.

using UnityEngine;

public class BoundsVisualizer : MonoBehaviour
{
    public Bounds bounds;

    void Start()
    {
        // Example bounds setup if not assigned
        if (bounds.size == Vector3.zero)
            bounds = new Bounds(transform.position, Vector3.one);
    }

    void Update()
    {
        DrawBounds(bounds, Color.red);
    }

    void DrawBounds(Bounds b, Color color)
    {
        Vector3 min = b.min;
        Vector3 max = b.max;

        Vector3[] corners = new Vector3[8];
        // Bottom
        corners[0] = new Vector3(min.x, min.y, min.z);
        corners[1] = new Vector3(max.x, min.y, min.z);
        corners[2] = new Vector3(max.x, min.y, max.z);
        corners[3] = new Vector3(min.x, min.y, max.z);
        // Top
        corners[4] = new Vector3(min.x, max.y, min.z);
        corners[5] = new Vector3(max.x, max.y, min.z);
        corners[6] = new Vector3(max.x, max.y, max.z);
        corners[7] = new Vector3(min.x, max.y, max.z);

        // Bottom rectangle
        Debug.DrawLine(corners[0], corners[1], color);
        Debug.DrawLine(corners[1], corners[2], color);
        Debug.DrawLine(corners[2], corners[3], color);
        Debug.DrawLine(corners[3], corners[0], color);

        // Top rectangle
        Debug.DrawLine(corners[4], corners[5], color);
        Debug.DrawLine(corners[5], corners[6], color);
        Debug.DrawLine(corners[6], corners[7], color);
        Debug.DrawLine(corners[7], corners[4], color);

        // Vertical edges
        Debug.DrawLine(corners[0], corners[4], color);
        Debug.DrawLine(corners[1], corners[5], color);
        Debug.DrawLine(corners[2], corners[6], color);
        Debug.DrawLine(corners[3], corners[7], color);
    }
}

Properties

Constructors

Public Methods