diff --git a/Assets/Editor.meta b/Assets/Editor.meta
new file mode 100644
index 0000000..0497aa4
--- /dev/null
+++ b/Assets/Editor.meta
@@ -0,0 +1,8 @@
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+guid: 1b7e9ac06aaa69049ac657d341499ae0
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diff --git a/Assets/Editor/SRPTest.cs b/Assets/Editor/SRPTest.cs
new file mode 100644
index 0000000..a1ca657
--- /dev/null
+++ b/Assets/Editor/SRPTest.cs
@@ -0,0 +1,17 @@
+using UnityEditor;
+using zzwater;
+
+public class SRPTest
+{
+    [MenuItem("SRPTest/Active wave")]
+    static void AciveWave()
+    {
+        URPHelper.RendererFeatureSetActive (true, "FullScreenPassRendererFeature");
+    }
+
+    [MenuItem("SRPTest/Deactivate wave")]
+    static void DeactivateWave()
+    {
+        URPHelper.RendererFeatureSetActive (false, "FullScreenPassRendererFeature");
+    }
+}
diff --git a/Assets/Editor/SRPTest.cs.meta b/Assets/Editor/SRPTest.cs.meta
new file mode 100644
index 0000000..ad34aeb
--- /dev/null
+++ b/Assets/Editor/SRPTest.cs.meta
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diff --git a/Assets/Test/Scripts.meta b/Assets/Test/Scripts.meta
new file mode 100644
index 0000000..0dfd540
--- /dev/null
+++ b/Assets/Test/Scripts.meta
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diff --git a/Assets/Test/Scripts/TestOnRenderImage.cs b/Assets/Test/Scripts/TestOnRenderImage.cs
new file mode 100644
index 0000000..9e387c1
--- /dev/null
+++ b/Assets/Test/Scripts/TestOnRenderImage.cs
@@ -0,0 +1,18 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class TestOnRenderImage : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+}
diff --git a/Assets/Test/Scripts/TestOnRenderImage.cs.meta b/Assets/Test/Scripts/TestOnRenderImage.cs.meta
new file mode 100644
index 0000000..57a6aad
--- /dev/null
+++ b/Assets/Test/Scripts/TestOnRenderImage.cs.meta
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diff --git a/Assets/Test/Shader Graphs_fstest.mat b/Assets/Test/Shader Graphs_fstest.mat
new file mode 100644
index 0000000..4e4374b
--- /dev/null
+++ b/Assets/Test/Shader Graphs_fstest.mat	
@@ -0,0 +1,42 @@
+%YAML 1.1
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new file mode 100644
index 0000000..3c346e9
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deleted file mode 100644
index 28d2184..0000000
--- a/Assets/Test/UnderWater/TUlit.shadergraph
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diff --git a/Assets/Test/UnderWater/zzwater_testshader.mat b/Assets/Test/UnderWater/zzwater_testshader.mat
index 57cddfb..98bf639 100644
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diff --git a/Assets/Test/fstest.shadergraph b/Assets/Test/fstest.shadergraph
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+}
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+}
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+        "z": 0.5
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diff --git a/Assets/Test/UnderWater/TUlit.shadergraph.meta b/Assets/Test/fstest.shadergraph.meta
similarity index 86%
rename from Assets/Test/UnderWater/TUlit.shadergraph.meta
rename to Assets/Test/fstest.shadergraph.meta
index ce16f37..7ed6fda 100644
--- a/Assets/Test/UnderWater/TUlit.shadergraph.meta
+++ b/Assets/Test/fstest.shadergraph.meta
@@ -1,5 +1,5 @@
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-guid: 5292af0aba74d5a4483600dd60d5407c
+guid: 427374d7de305424bbe241d698028a64
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   internalIDToNameTable: []
   externalObjects: {}
diff --git a/Packages/zzwater/Runtime.meta b/Packages/zzwater/Runtime.meta
new file mode 100644
index 0000000..66533d5
--- /dev/null
+++ b/Packages/zzwater/Runtime.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: ee00fd152ab58af4bb7fedc9f1ceb006
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Packages/zzwater/Runtime/URPHelper.cs b/Packages/zzwater/Runtime/URPHelper.cs
new file mode 100644
index 0000000..5283785
--- /dev/null
+++ b/Packages/zzwater/Runtime/URPHelper.cs
@@ -0,0 +1,41 @@
+
+using UnityEngine.Rendering;
+using UnityEngine.Rendering.Universal;
+
+namespace zzwater
+{
+    public class URPHelper
+    {
+        public static ScriptableRendererFeature FindAndCacheRendererFeature(string name)
+        {
+            // 获取当前 URP 资产
+            var urpAsset = (UniversalRenderPipelineAsset)GraphicsSettings.currentRenderPipeline;
+
+            // 使用反射获取 rendererData (因为它通常是私有的)
+            System.Reflection.FieldInfo propertyInfo = urpAsset.GetType().GetField("m_RendererDataList", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
+            if (propertyInfo != null)
+            {
+                ScriptableRendererData[] rendererDataList = (ScriptableRendererData[])propertyInfo.GetValue(urpAsset);
+                if (rendererDataList.Length > 0)
+                {
+                    var rendererData = rendererDataList[0]; // 获取第一个渲染器数据，你可能需要调整此逻辑
+
+                    // 查找指定名称的 FullScreenPassRendererFeature
+                    foreach (var feature in rendererData.rendererFeatures)
+                    {
+                        if (feature.name == name)
+                        {
+                            return feature;
+                        }
+                    }
+                }
+            }
+            return null;
+        }
+
+        public static void RendererFeatureSetActive(bool active, string name)
+        {
+            FindAndCacheRendererFeature(name)?.SetActive(active);
+        }
+    }
+}
diff --git a/Packages/zzwater/Runtime/URPHelper.cs.meta b/Packages/zzwater/Runtime/URPHelper.cs.meta
new file mode 100644
index 0000000..783c65a
--- /dev/null
+++ b/Packages/zzwater/Runtime/URPHelper.cs.meta
@@ -0,0 +1,11 @@
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+guid: 4ee461df0edcb524687cefd2783f2457
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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diff --git a/Packages/zzwater/Runtime/zzwater.asmdef b/Packages/zzwater/Runtime/zzwater.asmdef
new file mode 100644
index 0000000..0045a94
--- /dev/null
+++ b/Packages/zzwater/Runtime/zzwater.asmdef
@@ -0,0 +1,16 @@
+{
+    "name": "zzwater",
+    "rootNamespace": "zzwater",
+    "references": [
+        "GUID:15fc0a57446b3144c949da3e2b9737a9"
+    ],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}
\ No newline at end of file
diff --git a/Packages/zzwater/Runtime/zzwater.asmdef.meta b/Packages/zzwater/Runtime/zzwater.asmdef.meta
new file mode 100644
index 0000000..026857b
--- /dev/null
+++ b/Packages/zzwater/Runtime/zzwater.asmdef.meta
@@ -0,0 +1,7 @@
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