Unity 获取RenderTexture像素颜色值

拿来吧你~

• 🦪功能介绍
• 🌭Demo

🦪功能介绍

💡不通过Texture2D 而是通过ComputerShader 提取到RenderTexture的像素值，效率有提升哦！

💡通过扩展方法调用，方便快捷：xxxRT.GetPixel

💡传送门👈

🌭Demo

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.InputSystem;
namespace ZYF
{
    public class GetRTPixelDemo : MonoBehaviour
    {
        public RenderTexture rt;
        public UnityEvent<Color> onGetColor;
        private void Update()
        {
#if !ENABLE_INPUT_SYSTEM
            var mPos = Input.mousePosition;
#else
            var mPos = Mouse.current.position.value;
#endif
            var pos = new Vector2Int((int)mPos.x, (int)mPos.y);
            var color= rt.GetPixel(new GetRTPixelExtension.RequestInfo(pos));
            onGetColor?.Invoke(color);
        }
        private void OnDestroy()
        {
            rt?.EndGetPixel();
        }
    }

}