using UnityEngine;
using UnityEngine.UI;
public class NewBehaviourScript : MonoBehaviour
{
RenderTexture rt; //RawImage上的RenderTexture
Texture2D texture;
Color color;
void Start()
{
StartCoroutine(CaptureScreenshot());
}
IEnumerator CaptureScreenshot()
{
while (true)
{
//只在每一帧渲染完成后才读取屏幕信息
yield return new WaitForEndOfFrame();
//RawImage上的RenderTexture
rt = GetComponent<RawImage>().texture as RenderTexture;
texture = new Texture2D(rt.width, rt.height, TextureFormat.ARGB32, false);
RenderTexture.active = rt;
texture.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);
//RawImage上的trxture
//texture = GetComponent<RawImage>().texture as Texture2D;
texture.Apply();
color = texture.GetPixel((int)Input.mousePosition.x, (int)Input.mousePosition.y);
Debug.Log (
color.r * 255 + ", "
+ color.g * 255 + ", "
+ color.b * 255 + ", "
+ color.a * 255);
}
}
}
