using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// 用于不做渲染的UI对象，仅保留射线检测
/// </summary>
[RequireComponent(typeof(CanvasRenderer))]
public class NonDraw : Graphic
{
    protected override void Awake()
    {
        base.color = Color.clear;
    }

    protected override void OnPopulateMesh(VertexHelper vh)
    {
        vh.Clear();
    }

    // 重写方法以避免不必要的重绘调用
    public override void SetMaterialDirty() { }
    public override void SetVerticesDirty() { }
}