Assets/Scenes/SampleScene.unity

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   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 0, y: 0, z: 0}
-  m_Children: []
+  m_Children:
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   m_Father: {fileID: 0}
-  m_RootOrder: 2
+  m_RootOrder: 3
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   m_AnchorMax: {x: 0, y: 0}
@@ -313,7 +314,7 @@ Transform:
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   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 1
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 GameObject:
@@ -409,7 +410,7 @@ Transform:
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   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 7
+  m_RootOrder: 8
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@@ -468,7 +469,7 @@ Camera:
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@@ -588,8 +589,87 @@ Transform:
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   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 4
+  m_RootOrder: 5
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+--- !u!224 &1418181057
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+    m_LineSpacing: 1
+  m_Text: Button
+--- !u!222 &1418181059
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1418181056}
+  m_CullTransparentMesh: 1
 --- !u!1 &1647761509
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@@ -684,7 +764,90 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 5
+  m_RootOrder: 6
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
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+  - component: {fileID: 1733836415}
+  - component: {fileID: 1733836414}
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+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!81 &1733836414
+AudioListener:
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1733836413}
+  m_Enabled: 1
+--- !u!20 &1733836415
+Camera:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1733836413}
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+  serializedVersion: 2
+  m_ClearFlags: 1
+  m_BackGroundColor: {r: 0.19215687, g: 0.3019608, b: 0.4745098, a: 0}
+  m_projectionMatrixMode: 1
+  m_GateFitMode: 2
+  m_FOVAxisMode: 0
+  m_SensorSize: {x: 36, y: 24}
+  m_LensShift: {x: 0, y: 0}
+  m_FocalLength: 50
+  m_NormalizedViewPortRect:
+    serializedVersion: 2
+    x: 0
+    y: 0
+    width: 1
+    height: 1
+  near clip plane: 0.3
+  far clip plane: 1000
+  field of view: 60
+  orthographic: 0
+  orthographic size: 5
+  m_Depth: 0
+  m_CullingMask:
+    serializedVersion: 2
+    m_Bits: 4294967244
+  m_RenderingPath: -1
+  m_TargetTexture: {fileID: 0}
+  m_TargetDisplay: 0
+  m_TargetEye: 3
+  m_HDR: 1
+  m_AllowMSAA: 1
+  m_AllowDynamicResolution: 0
+  m_ForceIntoRT: 0
+  m_OcclusionCulling: 1
+  m_StereoConvergence: 10
+  m_StereoSeparation: 0.022
+--- !u!4 &1733836416
+Transform:
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+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
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+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
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+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children: []
+  m_Father: {fileID: 0}
+  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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@@ -750,7 +913,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 3
+  m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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 GameObject:
@@ -764,7 +927,7 @@ GameObject:
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   - component: {fileID: 1914484681}
   - component: {fileID: 1914484680}
-  m_Layer: 0
+  m_Layer: 2
   m_Name: Sphere
   m_TagString: Untagged
   m_Icon: {fileID: 0}
@@ -846,5 +1009,126 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 6
+  m_RootOrder: 7
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!1 &2119868896
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
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+  - component: {fileID: 2119868900}
+  - component: {fileID: 2119868899}
+  - component: {fileID: 2119868898}
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+  m_TagString: Untagged
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+--- !u!224 &2119868897
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+  m_LocalScale: {x: 1, y: 1, z: 1}
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+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!114 &2119868898
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Assets/Scripts/CameraRenderer.Editor

-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
-public class CameraRenderer.Editor : MonoBehaviour
-{
-    // Start is called before the first frame update
-    void Start()
-    {
-        
-    }
-
-    // Update is called once per frame
-    void Update()
-    {
-        
-    }
-}

Assets/Scripts/CameraRenderer.Editor.cs

+using UnityEditor;
+using UnityEngine;
+using UnityEngine.Rendering;
+using UnityEngine.Profiling;
+
+partial class CameraRenderer
+{
+    partial void DrawGizmos();
+    partial void DrawUnsupportedShaders();
+#if UNITY_EDITOR
+    static ShaderTagId[] legacyShaderTagIds = {
+        new ShaderTagId("Always"),
+        new ShaderTagId("ForwardBase"),
+        new ShaderTagId("PrepassBase"),
+        new ShaderTagId("Vertex"),
+        new ShaderTagId("VertexLMRGBM"),
+        new ShaderTagId("VertexLM"),
+    };
+    static Material errorMaterial;
+
+    partial void PrepareForSceneWindow();
+
+    partial void PrepareBuffer();
+
+    string sampleName { get; set; }
+
+    /// <summary>
+    /// 绘制所有不支持的着色器
+    /// </summary>
+    partial void DrawUnsupportedShaders()
+    {
+        if (errorMaterial == null)
+        {
+            errorMaterial = new Material(Shader.Find("Hidden/InternalErrorShader"));
+        }
+        var drawingSettings = new DrawingSettings(legacyShaderTagIds[0], new SortingSettings(camera))
+        {
+            overrideMaterial = errorMaterial
+        };
+        for (int i = 1; i < legacyShaderTagIds.Length; i++)
+        {
+            drawingSettings.SetShaderPassName(i, legacyShaderTagIds[i]);
+        }
+        var fliteringSettings = FilteringSettings.defaultValue;
+        // 可以通过 FilteringSettings.defaultValue 属性获得默认的过滤设置
+        context.DrawRenderers(cullingResults, ref drawingSettings, ref fliteringSettings);
+    }
+
+    partial void DrawGizmos()
+    {
+        if (Handles.ShouldRenderGizmos())
+        {
+            context.DrawGizmos(camera, GizmoSubset.PreImageEffects);
+            context.DrawGizmos(camera, GizmoSubset.PostImageEffects);
+        }
+    }
+
+    partial void PrepareForSceneWindow()
+    {
+        if (camera.cameraType == CameraType.SceneView)
+        {
+            ScriptableRenderContext.EmitWorldGeometryForSceneView(camera);
+        }
+    }
+
+    partial void PrepareBuffer()
+    {
+        Profiler.BeginSample("Editor Only");
+        buffer.name = camera.name;
+        Profiler.EndSample();
+    }
+#else
+    const string sampleName = bufferName;
+#endif
+}

Assets/Scripts/CameraRenderer.Editor.meta → Assets/Scripts/CameraRenderer.Editor.cs.meta

 fileFormatVersion: 2
-guid: 1ce1209508eebe84d97233b7dcca7703
-DefaultImporter:
+guid: ad3150bd302b9684e9244154722b4d93
+MonoImporter:
   externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
   userData: 
   assetBundleName: 
   assetBundleVariant: 

Assets/Scripts/CameraRenderer.cs

@@ -17,20 +17,12 @@ public partial class CameraRenderer
     // 着色器标记ID
     static ShaderTagId unlitShaderTagId = new ShaderTagId("SRPDefaultUnlit");
 
-    static ShaderTagId[] legacyShaderTagIds = {
-        new ShaderTagId("Always"),
-        new ShaderTagId("ForwardBase"),
-        new ShaderTagId("PrepassBase"),
-        new ShaderTagId("Vertex"),
-        new ShaderTagId("VertexLMRGBM"),
-        new ShaderTagId("VertexLM"),
-    };
-    static Material errorMaterial;
-
     public void Render(ScriptableRenderContext context, Camera camera)
     {
         this.context = context;
         this.camera = camera;
+        PrepareBuffer();
+        PrepareForSceneWindow();
         if (!Cull())
         {
             return;
@@ -38,6 +30,7 @@ public partial class CameraRenderer
         Setup();
         DrawVisibleGeometry();
         DrawUnsupportedShaders();
+        DrawGizmos();
         Submit();
     }
 
@@ -59,14 +52,15 @@ public partial class CameraRenderer
     {
         // 设置视图投影矩阵 在着色器中被称为unity_matrixvp
         context.SetupCameraProperties(camera);
-        buffer.ClearRenderTarget(true, true, Color.clear);
-        buffer.BeginSample(bufferName);
+        CameraClearFlags flags = camera.clearFlags;
+        buffer.ClearRenderTarget(flags <= CameraClearFlags.Depth, flags == CameraClearFlags.Color, flags == CameraClearFlags.Color ? camera.backgroundColor.linear : Color.clear);
+        buffer.BeginSample(sampleName);
         ExecuteBuffer();
     }
 
     void Submit()
     {
-        buffer.EndSample(bufferName);
+        buffer.EndSample(sampleName);
         ExecuteBuffer();
         context.Submit();
     }
@@ -102,26 +96,4 @@ public partial class CameraRenderer
         // 绘制透明
         context.DrawRenderers(cullingResults, ref drawingSettings, ref filteringSettings);
     }
-
-    /// <summary>
-    /// 绘制所有不支持的着色器
-    /// </summary>
-    void DrawUnsupportedShaders()
-    {
-        if (errorMaterial == null)
-        {
-            errorMaterial = new Material(Shader.Find("Hidden/InternalErrorShader"));
-        }
-        var drawingSettings = new DrawingSettings(legacyShaderTagIds[0], new SortingSettings(camera))
-        {
-            overrideMaterial = errorMaterial
-        };
-        for (int i = 1; i < legacyShaderTagIds.Length; i++)
-        {
-            drawingSettings.SetShaderPassName(i, legacyShaderTagIds[i]);
-        }
-        var fliteringSettings = FilteringSettings.defaultValue;
-        // 可以通过 FilteringSettings.defaultValue 属性获得默认的过滤设置
-        context.DrawRenderers(cullingResults, ref drawingSettings, ref fliteringSettings);
-    }
 }