unityRenderTexture的使用

Posted 2022-10-31 那个妹子留步

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;


public class NewBehaviourScript : MonoBehaviour

    public RawImage RawImage;
    public Camera Camera;

    private RenderTexture _renderTexture;
    // Start is called before the first frame update
    void Start()
    
        _renderTexture = new RenderTexture(256,256,0);
        Camera.targetTexture = _renderTexture;
        RawImage.texture = _renderTexture;
    

    // Update is called once per frame
    void Update()
    
        if (Input.GetKeyDown(KeyCode.A))
        
            var rt= new RenderTexture(1256, 1256, 0);
            Camera.targetTexture = rt;
            RawImage.texture = rt;

            //释放 
            _renderTexture.Release();
            DestroyImmediate(_renderTexture);
            _renderTexture = null;

            _renderTexture = rt;
        
        else if (Input.GetKeyDown(KeyCode.B))
        
            var rt = new RenderTexture(256, 256, 0);
            Camera.targetTexture = rt;
            RawImage.texture = rt;
            _renderTexture.Release();//释放显存
            DestroyImmediate(_renderTexture);//删除对象
            _renderTexture = null;
            _renderTexture = rt;
        
        else if (Input.GetKeyDown(KeyCode.C))
        
            _renderTexture.Release();
            Destroy(_renderTexture);
            _renderTexture = null;