XiuXianGame/Assets/Scripts/GameUI/UI/BackgroundCom.cs

using Fort23.Core;
using Fort23.Mono.Test;
using Fort23.UTool;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;
using UnityEngine.UI;
namespace Fort23.Mono
{
    [UIBinding(prefab = "BackgroundCom")]
    public partial class BackgroundCom : UIComponent
    {
        protected Material Material = new Material(Shader.Find("Unlit/MoHu"));
        private void Init()
        {
            
        }

        public override void AddEvent()
        {
        }

        public override void DelEvent()
        {
        }

        public override void AddButtonEvent()
        {
        }
        
        

        public async override CTask<bool> AsyncInit(object[] uiData)
        {
            ManualAsyncTask ct = ManualAsyncTask.Create();
            if (GObjectPoolInterface != null)
            {
                GObjectPoolInterface.SetActive(false);
            }
            // var rect = panelObj.AddComponent<RectTransform>();
          
            UIManager.Instance.RefreshFull();
            // Shader.SetGlobalTexture(CameraTransparentColorTexture, renderTexture);
            InterceptGamePass.SetRenderTexture(renderTexture, delegate { ct.SetResult(); }, executeCallBack: Execute);
            await ct.Wait();
            RawImage.texture = renderTexture;
            
            RawImage.SetNativeSize();
            TimerComponent.Instance.AddTimer(500, delegate
            {
                UIManager.Instance.RefreshFull();
              
          
            });
            await base.AsyncInit(uiData);
            return true;
        }

        


        private RenderTexture renderTexture
        {
            get
            {
                if (_renderTexture == null)
                {
                    _renderTexture = new RenderTexture(Screen.width, Screen.height, 0, RenderTextureFormat.Default);
                }

                return _renderTexture;
            }
        }

        private RenderTexture _renderTexture;

        public override void Show()
        {
            base.Show();
            transform.anchorMin = Vector2.zero;
            transform.anchorMax = Vector2.one;
            CanvasScaler scaler=  transform.GetComponentInParent<CanvasScaler>();
            RectTransform scalerTran=   scaler.GetComponent<RectTransform>();
            transform.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, scalerTran.sizeDelta.x);
            transform.SetSizeWithCurrentAnchors(RectTransform.Axis.Vertical, scalerTran.sizeDelta.y);
        }

        protected void Execute(ScriptableRenderContext context, RenderingData renderingData, RenderTexture renderTargetHandle, RenderTargetIdentifier source, RenderTextureDescriptor cameraTextureDescriptor)
        {
            if (Material == null)
            {
                Material = new Material(Shader.Find("Unlit/MoHu"));
            }
            // return;
            LogTool.Log("回调背景图加载");
            CommandBuffer cmd = CommandBufferPool.Get("background");
            int w = cameraTextureDescriptor.width;
            int h = cameraTextureDescriptor.height;
            int randerIndex = -255;
            RenderTargetIdentifier lasetIdentifier = default;
            int lasetranderIndex = 10000;

            for (int i = 0; i < 4; i++)
            {
                w /= 2;
                h /= 2;
                if (w <= 1 || h <= 1)
                {
                    break;
                }
            
                int index =  Shader.PropertyToID("back_tu"+i);
                // isTu1 = !isTu1;
                cmd.GetTemporaryRT(index, w, h, 0, FilterMode.Bilinear, RenderTextureFormat.ARGB32);
                RenderTargetIdentifier renderTargetIdentifier = new RenderTargetIdentifier(index);
                if (lasetranderIndex != 10000)
                {
                    cmd.Blit(lasetIdentifier, renderTargetIdentifier, Material, 0);
                    cmd.ReleaseTemporaryRT(lasetranderIndex);
                }
                else
                {
                    cmd.Blit(source, renderTargetIdentifier, Material, 0);
                }
            
                lasetIdentifier = renderTargetIdentifier;
                lasetranderIndex = index;
                // break;
            }
            
            for (int i = 0; i < 4; i++)
            {
                w *= 2;
                h *= 2;
                if (w > cameraTextureDescriptor.width || h > cameraTextureDescriptor.height)
                {
                    break;
                }
            
                int index =  Shader.PropertyToID("back_fd"+i);
                cmd.GetTemporaryRT(index, w, h, 0, FilterMode.Bilinear, RenderTextureFormat.ARGB32);
                RenderTargetIdentifier renderTargetIdentifier = new RenderTargetIdentifier(index);
                if (lasetranderIndex != 10000)
                {
                    cmd.Blit(lasetIdentifier, renderTargetIdentifier, Material, 1);
                    cmd.ReleaseTemporaryRT(lasetranderIndex);
                }
            
                lasetIdentifier = renderTargetIdentifier;
                lasetranderIndex = index;
                // break;
            }


            // int index = Shader.PropertyToID("back_tu");
            // isTu1 = !isTu1;
            // cmd.GetTemporaryRT(index, w, h, 0, FilterMode.Bilinear,
            //     RenderTextureFormat.ARGB32);
            // RenderTargetIdentifier renderTargetIdentifier = new RenderTargetIdentifier(index);
            // cmd.Blit(source, renderTargetIdentifier,Material,0);
            cmd.Blit(lasetIdentifier, renderTargetHandle,Material,2);
            cmd.ReleaseTemporaryRT(lasetranderIndex);
            context.ExecuteCommandBuffer(cmd);
            CommandBufferPool.Release(cmd);
        }

        public override void Dispose()
        {
            base.Dispose();
        }
    }
}