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Unity Engine

DrawWireSphere(Vector3, float)

Draws a wireframe sphere with center and radius in the Scene view.
Read time 2 minutesLast updated 4 days ago

Definition

  • Type: Method
  • Namespace: UnityEngine
  • Assembly: UnityEngine.CoreModule
public static void DrawWireSphere(Vector3 center, float radius)

Parameters

center

Vector3
The center point of the sphere to draw.

radius

float
The radius of the sphere to draw. Determines the size of the drawn sphere.

Remarks

DrawWireSphere
is a method used for visual debugging in the Unity Editor. It renders a wireframe sphere in the Scene view. This method is useful for visualizing collision areas, effect ranges, or important positions within your scene.
The sphere is drawn using the current Gizmos color, which can be set using Gizmos.color before calling 
DrawWireSphere
. The sphere is drawn using the current Gizmos matrix, which can be set using Gizmos.matrix before calling 
DrawWireSphere
.
Typically, you'd use this method within MonoBehaviour.OnDrawGizmos() or MonoBehaviour.OnDrawGizmosSelected() functions in your MonoBehaviour scripts, or within a method with the DrawGizmo attribute. Like all Gizmos, it's an Editor-only tool and should not be used for game functionality. This method has no effect in the GameView or at runtime. If you want to draw similar shapes at runtime, refer to Debug.DrawLine.
The sphere respects the 3D space and perspective of the scene, including depth and occlusion by other objects. It also respects the alpha channel of the Gizmos color, allowing for semi-transparent spheres as well as the transformation of Gizmos.matrix.
using UnityEngine;public class SphereGizmoExample : MonoBehaviour{    public float radius = 1f;    [Range(0f, 1f)]    public float alpha = 0.5f;    private void OnDrawGizmos()    {        // Set the color with custom alpha        Gizmos.color = new Color(1f, 0f, 0f, alpha); // Red with custom alpha        // Draw the sphere        Gizmos.DrawSphere(transform.position, radius);        // Draw wire sphere outline        Gizmos.color = Color.white;        Gizmos.DrawWireSphere(transform.position, radius);    }}
Additional Resources: MonoBehaviour.OnDrawGizmos(), MonoBehaviour.OnDrawGizmosSelected(), DrawGizmo, Gizmos.color, Gizmos.matrix.