diff --git a/assets/effects/sprite-local-diffusion.effect b/assets/effects/sprite-local-diffusion.effect
index 3227a0d..93550c5 100644
--- a/assets/effects/sprite-local-diffusion.effect
+++ b/assets/effects/sprite-local-diffusion.effect
@@ -105,8 +105,12 @@ CCProgram fs %{
     float radius;
 
     // 裁剪掉透明区域上的点光
-    // ps：编辑器还不支持 bool 类型的样子，因此没在 CCEffect 中定义 cropAlpha
-    bool cropAlpha;
+    // ps：编辑器还不支持 bool 类型的样子，因此没在 CCEffect 中定义
+    bool cropAlpha;   
+
+    // 是否启用迷雾效果
+    // ps：编辑器还不支持 bool 类型的样子，因此没在 CCEffect 中定义
+    bool enableFog;
   }
 
   /**
@@ -118,13 +122,15 @@ CCProgram fs %{
 
     float a = 1.0 ;
 
-    // 裁剪掉透明区域上的点光 
+    // 裁剪掉透明区域上的点光
     if (cropAlpha) {
       a *= step(0.01, textureColor.a);
     }
 
-    // 裁剪掉扩散范围外的uv
-    // a *= step(dis, radius);
+    // 裁剪掉扩散范围外的uv（迷雾效果）
+    if (!enableFog) {
+      a *= step(dis, radius);
+    }
 
     // 加入从中心往外渐变的效果
     a *= 1.0 - (dis / radius);
diff --git a/assets/effects/sprite-local-diffusion.effect.meta b/assets/effects/sprite-local-diffusion.effect.meta
index 8a4663c..43ee7b3 100644
--- a/assets/effects/sprite-local-diffusion.effect.meta
+++ b/assets/effects/sprite-local-diffusion.effect.meta
@@ -5,11 +5,11 @@
     {
       "glsl1": {
         "vert": "\nprecision highp float;\nuniform mat4 cc_matViewProj;\nuniform mat4 cc_matWorld;\n\nattribute vec3 a_position;\nattribute vec4 a_color;\nvarying vec4 v_color;\n\n#if USE_TEXTURE\nattribute vec2 a_uv0;\nvarying vec2 v_uv0;\n#endif\n\nvoid main () {\n  vec4 pos = vec4(a_position, 1);\n\n  #if CC_USE_MODEL\n  pos = cc_matViewProj * cc_matWorld * pos;\n  #else\n  pos = cc_matViewProj * pos;\n  #endif\n\n  #if USE_TEXTURE\n  v_uv0 = a_uv0;\n  #endif\n\n  v_color = a_color;\n\n  gl_Position = pos;\n}\n",
-        "frag": "\nprecision highp float;\n\n#if USE_ALPHA_TEST\n  \n  uniform float alphaThreshold;\n#endif\n\nvoid ALPHA_TEST (in vec4 color) {\n  #if USE_ALPHA_TEST\n      if (color.a < alphaThreshold) discard;\n  #endif\n}\n\nvoid ALPHA_TEST (in float alpha) {\n  #if USE_ALPHA_TEST\n      if (alpha < alphaThreshold) discard;\n  #endif\n}\n\nvarying vec4 v_color;\n\n#if USE_TEXTURE\nvarying vec2 v_uv0;\nuniform sampler2D texture;\n#endif\n\n#if ENABLE_DIFFUSION\nuniform vec4 centerColor;\nuniform vec2 centerPoint;\nuniform float radius;\nuniform bool cropAlpha;\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n  float dis = distance(v_uv0, centerPoint);\n\n  float a = 1.0 ;\n\n  if (cropAlpha) {\n    a *= step(0.01, textureColor.a);\n  }\n\n  a *= 1.0 - (dis / radius);\n\n  vec4 diffusionColor = centerColor * a;\n\n  return textureColor * textureColor.a + diffusionColor;\n}\n#endif\n\nvoid main () {\n  vec4 o = vec4(1, 1, 1, 1);\n\n  #if USE_TEXTURE\n  o *= texture2D(texture, v_uv0);\n    #if CC_USE_ALPHA_ATLAS_TEXTURE\n    o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;\n    #endif\n  #endif\n\n  o *= v_color;\n\n  ALPHA_TEST(o);\n\n  gl_FragColor = o;\n  \n  #if ENABLE_DIFFUSION\n  gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n  #endif\n}\n"
+        "frag": "\nprecision highp float;\n\n#if USE_ALPHA_TEST\n  \n  uniform float alphaThreshold;\n#endif\n\nvoid ALPHA_TEST (in vec4 color) {\n  #if USE_ALPHA_TEST\n      if (color.a < alphaThreshold) discard;\n  #endif\n}\n\nvoid ALPHA_TEST (in float alpha) {\n  #if USE_ALPHA_TEST\n      if (alpha < alphaThreshold) discard;\n  #endif\n}\n\nvarying vec4 v_color;\n\n#if USE_TEXTURE\nvarying vec2 v_uv0;\nuniform sampler2D texture;\n#endif\n\n#if ENABLE_DIFFUSION\nuniform vec4 centerColor;\nuniform vec2 centerPoint;\nuniform float radius;\nuniform bool cropAlpha;\nuniform bool enableFog;\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n  float dis = distance(v_uv0, centerPoint);\n\n  float a = 1.0 ;\n\n  if (cropAlpha) {\n    a *= step(0.01, textureColor.a);\n  }\n\n  if (!enableFog) {\n    a *= step(dis, radius);\n  }\n\n  a *= 1.0 - (dis / radius);\n\n  vec4 diffusionColor = centerColor * a;\n\n  return textureColor * textureColor.a + diffusionColor;\n}\n#endif\n\nvoid main () {\n  vec4 o = vec4(1, 1, 1, 1);\n\n  #if USE_TEXTURE\n  o *= texture2D(texture, v_uv0);\n    #if CC_USE_ALPHA_ATLAS_TEXTURE\n    o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;\n    #endif\n  #endif\n\n  o *= v_color;\n\n  ALPHA_TEST(o);\n\n  gl_FragColor = o;\n  \n  #if ENABLE_DIFFUSION\n  gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n  #endif\n}\n"
       },
       "glsl3": {
         "vert": "\nprecision highp float;\nuniform CCGlobal {\n  vec4 cc_time;\n\n  vec4 cc_screenSize;\n\n  vec4 cc_screenScale;\n\n  vec4 cc_nativeSize;\n\n  mat4 cc_matView;\n  mat4 cc_matViewInv;\n  mat4 cc_matProj;\n  mat4 cc_matProjInv;\n  mat4 cc_matViewProj;\n  mat4 cc_matViewProjInv;\n  vec4 cc_cameraPos;\n\n  vec4 cc_exposure;\n\n  vec4 cc_mainLitDir;\n\n  vec4 cc_mainLitColor;\n\n  vec4 cc_ambientSky;\n  vec4 cc_ambientGround;\n};\nuniform CCLocal {\n  mat4 cc_matWorld;\n  mat4 cc_matWorldIT;\n};\n\nin vec3 a_position;\nin vec4 a_color;\nout vec4 v_color;\n\n#if USE_TEXTURE\nin vec2 a_uv0;\nout vec2 v_uv0;\n#endif\n\nvoid main () {\n  vec4 pos = vec4(a_position, 1);\n\n  #if CC_USE_MODEL\n  pos = cc_matViewProj * cc_matWorld * pos;\n  #else\n  pos = cc_matViewProj * pos;\n  #endif\n\n  #if USE_TEXTURE\n  v_uv0 = a_uv0;\n  #endif\n\n  v_color = a_color;\n\n  gl_Position = pos;\n}\n",
-        "frag": "\nprecision highp float;\n\n#if USE_ALPHA_TEST\n  \n  uniform ALPHA_TEST {\n    float alphaThreshold;\n  }\n#endif\n\nvoid ALPHA_TEST (in vec4 color) {\n  #if USE_ALPHA_TEST\n      if (color.a < alphaThreshold) discard;\n  #endif\n}\n\nvoid ALPHA_TEST (in float alpha) {\n  #if USE_ALPHA_TEST\n      if (alpha < alphaThreshold) discard;\n  #endif\n}\n\nin vec4 v_color;\n\n#if USE_TEXTURE\nin vec2 v_uv0;\nuniform sampler2D texture;\n#endif\n\n#if ENABLE_DIFFUSION\nuniform Diffusion {\n\n  vec4 centerColor;\n\n  vec2 centerPoint;\n\n  float radius;\n\n  bool cropAlpha;\n}\n\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n  float dis = distance(v_uv0, centerPoint);\n\n  float a = 1.0 ;\n\n  if (cropAlpha) {\n    a *= step(0.01, textureColor.a);\n  }\n\n  a *= 1.0 - (dis / radius);\n\n  vec4 diffusionColor = centerColor * a;\n\n  return textureColor * textureColor.a + diffusionColor;\n}\n#endif\n\nvoid main () {\n  vec4 o = vec4(1, 1, 1, 1);\n\n  #if USE_TEXTURE\n  o *= texture(texture, v_uv0);\n    #if CC_USE_ALPHA_ATLAS_TEXTURE\n    o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;\n    #endif\n  #endif\n\n  o *= v_color;\n\n  ALPHA_TEST(o);\n\n  gl_FragColor = o;\n  \n  #if ENABLE_DIFFUSION\n  gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n  #endif\n}\n"
+        "frag": "\nprecision highp float;\n\n#if USE_ALPHA_TEST\n  \n  uniform ALPHA_TEST {\n    float alphaThreshold;\n  }\n#endif\n\nvoid ALPHA_TEST (in vec4 color) {\n  #if USE_ALPHA_TEST\n      if (color.a < alphaThreshold) discard;\n  #endif\n}\n\nvoid ALPHA_TEST (in float alpha) {\n  #if USE_ALPHA_TEST\n      if (alpha < alphaThreshold) discard;\n  #endif\n}\n\nin vec4 v_color;\n\n#if USE_TEXTURE\nin vec2 v_uv0;\nuniform sampler2D texture;\n#endif\n\n#if ENABLE_DIFFUSION\nuniform Diffusion {\n\n  vec4 centerColor;\n\n  vec2 centerPoint;\n\n  float radius;\n\n  bool cropAlpha;\n\n  bool enableFog;\n}\n\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n  float dis = distance(v_uv0, centerPoint);\n\n  float a = 1.0 ;\n\n  if (cropAlpha) {\n    a *= step(0.01, textureColor.a);\n  }\n\n  if (!enableFog) {\n    a *= step(dis, radius);\n  }\n\n  a *= 1.0 - (dis / radius);\n\n  vec4 diffusionColor = centerColor * a;\n\n  return textureColor * textureColor.a + diffusionColor;\n}\n#endif\n\nvoid main () {\n  vec4 o = vec4(1, 1, 1, 1);\n\n  #if USE_TEXTURE\n  o *= texture(texture, v_uv0);\n    #if CC_USE_ALPHA_ATLAS_TEXTURE\n    o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;\n    #endif\n  #endif\n\n  o *= v_color;\n\n  ALPHA_TEST(o);\n\n  gl_FragColor = o;\n  \n  #if ENABLE_DIFFUSION\n  gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n  #endif\n}\n"
       }
     }
   ],
diff --git a/assets/scenes/LocalDiffusionEffectScene.fire b/assets/scenes/LocalDiffusionEffectScene.fire
index aa7b2b6..78eb6aa 100755
--- a/assets/scenes/LocalDiffusionEffectScene.fire
+++ b/assets/scenes/LocalDiffusionEffectScene.fire
@@ -78,10 +78,10 @@
     "_active": true,
     "_components": [
       {
-        "__id__": 125
+        "__id__": 137
       },
       {
-        "__id__": 126
+        "__id__": 138
       }
     ],
     "_prefab": null,
@@ -171,7 +171,7 @@
       "array": [
         0,
         0,
-        492.7684547533456,
+        491.0364039457767,
         0,
         0,
         0,
@@ -245,13 +245,13 @@
         "__id__": 9
       },
       {
-        "__id__": 109
+        "__id__": 121
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 124
+        "__id__": 136
       }
     ],
     "_prefab": null,
@@ -451,15 +451,18 @@
       },
       {
         "__id__": 95
+      },
+      {
+        "__id__": 107
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 107
+        "__id__": 119
       },
       {
-        "__id__": 108
+        "__id__": 120
       }
     ],
     "_prefab": null,
@@ -474,7 +477,7 @@
     "_contentSize": {
       "__type__": "cc.Size",
       "width": 576,
-      "height": 540
+      "height": 480
     },
     "_anchorPoint": {
       "__type__": "cc.Vec2",
@@ -1319,7 +1322,7 @@
       "ctor": "Float64Array",
       "array": [
         0,
-        -126,
+        -100,
         0,
         0,
         0,
@@ -2080,7 +2083,7 @@
       "ctor": "Float64Array",
       "array": [
         0,
-        -222,
+        -170,
         0,
         0,
         0,
@@ -2841,7 +2844,7 @@
       "ctor": "Float64Array",
       "array": [
         0,
-        -318,
+        -240,
         0,
         0,
         0,
@@ -3602,7 +3605,7 @@
       "ctor": "Float64Array",
       "array": [
         0,
-        -414,
+        -310,
         0,
         0,
         0,
@@ -4360,7 +4363,7 @@
       "ctor": "Float64Array",
       "array": [
         0,
-        -510,
+        -380,
         0,
         0,
         0,
@@ -4898,6 +4901,589 @@
     "_originalHeight": 0,
     "_id": "efiFYhAgxFpY9khUf6wQ/S"
   },
+  {
+    "__type__": "cc.Node",
+    "_name": "EnableFogToggle",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 9
+    },
+    "_children": [
+      {
+        "__id__": 108
+      },
+      {
+        "__id__": 111
+      }
+    ],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 118
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 576,
+      "height": 60
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0.5,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        0,
+        -450,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "76vm3aJ6RBJJV/ObsptXAg"
+  },
+  {
+    "__type__": "cc.Node",
+    "_name": "DescLabel",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 107
+    },
+    "_children": [],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 109
+      },
+      {
+        "__id__": 110
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 432,
+      "height": 40
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 1,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        144,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "39faOmDqFEF45qoB99qGG8"
+  },
+  {
+    "__type__": "cc.Label",
+    "_name": "SliderDescLabel<Label>",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 108
+    },
+    "_enabled": true,
+    "_materials": [
+      {
+        "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
+      }
+    ],
+    "_useOriginalSize": false,
+    "_string": "启用迷雾效果：",
+    "_N$string": "启用迷雾效果：",
+    "_fontSize": 40,
+    "_lineHeight": 40,
+    "_enableWrapText": true,
+    "_N$file": null,
+    "_isSystemFontUsed": true,
+    "_spacingX": 0,
+    "_batchAsBitmap": false,
+    "_N$horizontalAlign": 0,
+    "_N$verticalAlign": 1,
+    "_N$fontFamily": "Arial",
+    "_N$overflow": 2,
+    "_N$cacheMode": 0,
+    "_id": "72bn8MBPlJub9703i57OuY"
+  },
+  {
+    "__type__": "cc.Widget",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 108
+    },
+    "_enabled": true,
+    "alignMode": 1,
+    "_target": null,
+    "_alignFlags": 45,
+    "_left": 0,
+    "_right": 0.25,
+    "_top": 10,
+    "_bottom": 10,
+    "_verticalCenter": 0,
+    "_horizontalCenter": 0,
+    "_isAbsLeft": true,
+    "_isAbsRight": false,
+    "_isAbsTop": true,
+    "_isAbsBottom": true,
+    "_isAbsHorizontalCenter": true,
+    "_isAbsVerticalCenter": true,
+    "_originalWidth": 113.38,
+    "_originalHeight": 50.4,
+    "_id": "c8mkfeqR9NUZu8Cz/2SPbO"
+  },
+  {
+    "__type__": "cc.Node",
+    "_name": "Toggle",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 107
+    },
+    "_children": [
+      {
+        "__id__": 112
+      },
+      {
+        "__id__": 114
+      }
+    ],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 116
+      },
+      {
+        "__id__": 117
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 28,
+      "height": 28
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0.5,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        158,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "21L/wEbjdNUYyJ9y4SbFFH"
+  },
+  {
+    "__type__": "cc.Node",
+    "_name": "Background",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 111
+    },
+    "_children": [],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 113
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 28,
+      "height": 28
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0.5,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "f7RlBAbBNJNbmEm3chl062"
+  },
+  {
+    "__type__": "cc.Sprite",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 112
+    },
+    "_enabled": true,
+    "_materials": [
+      {
+        "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
+      }
+    ],
+    "_srcBlendFactor": 770,
+    "_dstBlendFactor": 771,
+    "_spriteFrame": {
+      "__uuid__": "6827ca32-0107-4552-bab2-dfb31799bb44"
+    },
+    "_type": 0,
+    "_sizeMode": 1,
+    "_fillType": 0,
+    "_fillCenter": {
+      "__type__": "cc.Vec2",
+      "x": 0,
+      "y": 0
+    },
+    "_fillStart": 0,
+    "_fillRange": 0,
+    "_isTrimmedMode": true,
+    "_atlas": null,
+    "_id": "d6Isoo7/ZO/bbOhEvqBb0k"
+  },
+  {
+    "__type__": "cc.Node",
+    "_name": "checkmark",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 111
+    },
+    "_children": [],
+    "_active": false,
+    "_components": [
+      {
+        "__id__": 115
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 28,
+      "height": 28
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0.5,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "09QL6g+ENK5oeAI3eRiFkZ"
+  },
+  {
+    "__type__": "cc.Sprite",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 114
+    },
+    "_enabled": true,
+    "_materials": [
+      {
+        "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
+      }
+    ],
+    "_srcBlendFactor": 770,
+    "_dstBlendFactor": 771,
+    "_spriteFrame": {
+      "__uuid__": "90004ad6-2f6d-40e1-93ef-b714375c6f06"
+    },
+    "_type": 0,
+    "_sizeMode": 2,
+    "_fillType": 0,
+    "_fillCenter": {
+      "__type__": "cc.Vec2",
+      "x": 0,
+      "y": 0
+    },
+    "_fillStart": 0,
+    "_fillRange": 0,
+    "_isTrimmedMode": false,
+    "_atlas": null,
+    "_id": "40fLjBd/9DJKek7+KSubyW"
+  },
+  {
+    "__type__": "cc.Widget",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 111
+    },
+    "_enabled": true,
+    "alignMode": 1,
+    "_target": null,
+    "_alignFlags": 8,
+    "_left": 0.75,
+    "_right": 0,
+    "_top": 0,
+    "_bottom": 0,
+    "_verticalCenter": 0,
+    "_horizontalCenter": 0,
+    "_isAbsLeft": false,
+    "_isAbsRight": true,
+    "_isAbsTop": true,
+    "_isAbsBottom": true,
+    "_isAbsHorizontalCenter": true,
+    "_isAbsVerticalCenter": true,
+    "_originalWidth": 0,
+    "_originalHeight": 0,
+    "_id": "9fBwpoEbhJ6ZQE7B47Ub6L"
+  },
+  {
+    "__type__": "cc.Toggle",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 111
+    },
+    "_enabled": true,
+    "_normalMaterial": {
+      "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
+    },
+    "_grayMaterial": null,
+    "duration": 0.1,
+    "zoomScale": 1.2,
+    "clickEvents": [],
+    "_N$interactable": true,
+    "_N$enableAutoGrayEffect": false,
+    "_N$transition": 3,
+    "transition": 3,
+    "_N$normalColor": {
+      "__type__": "cc.Color",
+      "r": 214,
+      "g": 214,
+      "b": 214,
+      "a": 255
+    },
+    "_N$pressedColor": {
+      "__type__": "cc.Color",
+      "r": 211,
+      "g": 211,
+      "b": 211,
+      "a": 255
+    },
+    "pressedColor": {
+      "__type__": "cc.Color",
+      "r": 211,
+      "g": 211,
+      "b": 211,
+      "a": 255
+    },
+    "_N$hoverColor": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "hoverColor": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_N$disabledColor": {
+      "__type__": "cc.Color",
+      "r": 124,
+      "g": 124,
+      "b": 124,
+      "a": 255
+    },
+    "_N$normalSprite": null,
+    "_N$pressedSprite": null,
+    "pressedSprite": null,
+    "_N$hoverSprite": null,
+    "hoverSprite": null,
+    "_N$disabledSprite": null,
+    "_N$target": {
+      "__id__": 112
+    },
+    "_N$isChecked": false,
+    "toggleGroup": null,
+    "checkMark": {
+      "__id__": 115
+    },
+    "checkEvents": [],
+    "_id": "11XOk3zDJLfZvBbfeWPiSh"
+  },
+  {
+    "__type__": "cc.Widget",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 107
+    },
+    "_enabled": true,
+    "alignMode": 1,
+    "_target": null,
+    "_alignFlags": 40,
+    "_left": 0,
+    "_right": 0,
+    "_top": 0,
+    "_bottom": 0,
+    "_verticalCenter": 0,
+    "_horizontalCenter": 0,
+    "_isAbsLeft": true,
+    "_isAbsRight": true,
+    "_isAbsTop": true,
+    "_isAbsBottom": true,
+    "_isAbsHorizontalCenter": true,
+    "_isAbsVerticalCenter": true,
+    "_originalWidth": 461.38,
+    "_originalHeight": 0,
+    "_id": "4eONhDOstGwr5Sg+FM0KX0"
+  },
   {
     "__type__": "cc.Widget",
     "_name": "",
@@ -4936,7 +5522,7 @@
     "_layoutSize": {
       "__type__": "cc.Size",
       "width": 576,
-      "height": 540
+      "height": 480
     },
     "_resize": 1,
     "_N$layoutType": 2,
@@ -4952,7 +5538,7 @@
     "_N$paddingTop": 0,
     "_N$paddingBottom": 0,
     "_N$spacingX": 0,
-    "_N$spacingY": 36,
+    "_N$spacingY": 10,
     "_N$verticalDirection": 1,
     "_N$horizontalDirection": 0,
     "_N$affectedByScale": false,
@@ -4967,31 +5553,31 @@
     },
     "_children": [
       {
-        "__id__": 110
+        "__id__": 122
       },
       {
-        "__id__": 112
+        "__id__": 124
       },
       {
-        "__id__": 114
+        "__id__": 126
       },
       {
-        "__id__": 116
+        "__id__": 128
       },
       {
-        "__id__": 118
+        "__id__": 130
       },
       {
-        "__id__": 120
+        "__id__": 132
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 122
+        "__id__": 134
       },
       {
-        "__id__": 123
+        "__id__": 135
       }
     ],
     "_prefab": null,
@@ -5047,13 +5633,13 @@
     "_name": "ball_0",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 109
+      "__id__": 121
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 111
+        "__id__": 123
       }
     ],
     "_prefab": null,
@@ -5109,7 +5695,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 110
+      "__id__": 122
     },
     "_enabled": true,
     "_materials": [
@@ -5141,13 +5727,13 @@
     "_name": "cocos_logo",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 109
+      "__id__": 121
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 113
+        "__id__": 125
       }
     ],
     "_prefab": null,
@@ -5203,7 +5789,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 112
+      "__id__": 124
     },
     "_enabled": true,
     "_materials": [
@@ -5235,13 +5821,13 @@
     "_name": "ball_1",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 109
+      "__id__": 121
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 115
+        "__id__": 127
       }
     ],
     "_prefab": null,
@@ -5297,7 +5883,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 114
+      "__id__": 126
     },
     "_enabled": true,
     "_materials": [
@@ -5329,13 +5915,13 @@
     "_name": "video_btn",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 109
+      "__id__": 121
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 117
+        "__id__": 129
       }
     ],
     "_prefab": null,
@@ -5391,7 +5977,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 116
+      "__id__": 128
     },
     "_enabled": true,
     "_materials": [
@@ -5423,13 +6009,13 @@
     "_name": "SystemFont",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 109
+      "__id__": 121
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 119
+        "__id__": 131
       }
     ],
     "_prefab": null,
@@ -5485,7 +6071,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 118
+      "__id__": 130
     },
     "_enabled": true,
     "_materials": [
@@ -5515,13 +6101,13 @@
     "_name": "BmFont",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 109
+      "__id__": 121
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 121
+        "__id__": 133
       }
     ],
     "_prefab": null,
@@ -5577,7 +6163,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 120
+      "__id__": 132
     },
     "_enabled": true,
     "_materials": [
@@ -5609,7 +6195,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 109
+      "__id__": 121
     },
     "_enabled": true,
     "alignMode": 1,
@@ -5636,7 +6222,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 109
+      "__id__": 121
     },
     "_enabled": true,
     "_layoutSize": {
diff --git a/assets/scripts/LocalDiffusionCtrl.ts b/assets/scripts/LocalDiffusionCtrl.ts
index 219d4c3..5705190 100644
--- a/assets/scripts/LocalDiffusionCtrl.ts
+++ b/assets/scripts/LocalDiffusionCtrl.ts
@@ -38,6 +38,7 @@ export default class LocalDiffusionCtrl extends cc.Component {
         this._localDiffusionUniform.centerColor = localDiffusionUniform.centerColor;
         this._localDiffusionUniform.radius = localDiffusionUniform.radius;
         this._localDiffusionUniform.cropAlpha = localDiffusionUniform.cropAlpha;
+        this._localDiffusionUniform.enableFog = localDiffusionUniform.enableFog;
         this._updateMaterial();
     }
 
@@ -48,6 +49,7 @@ export default class LocalDiffusionCtrl extends cc.Component {
             material.setProperty("centerPoint", this._localDiffusionUniform.certerPoint);
             material.setProperty("radius", this._localDiffusionUniform.radius);
             material.setProperty("cropAlpha", this._localDiffusionUniform.cropAlpha);
+            material.setProperty("enableFog", this._localDiffusionUniform.enableFog);
             renderComponent.setMaterial(0, material);
         });
     }
@@ -73,4 +75,9 @@ export class LocalDiffusionUniform {
      * 是否裁剪掉透明区域上的点光
      */
     cropAlpha: boolean = true;
+
+    /**
+     * 是否开启战争迷雾效果
+     */
+    enableFog: boolean = false;
 }
diff --git a/assets/scripts/LocalDiffusionEffectScene.ts b/assets/scripts/LocalDiffusionEffectScene.ts
index dd2fe5a..492b374 100644
--- a/assets/scripts/LocalDiffusionEffectScene.ts
+++ b/assets/scripts/LocalDiffusionEffectScene.ts
@@ -6,20 +6,17 @@ const { ccclass, property } = cc._decorator;
 export default class LocalDiffusionEffectScene extends cc.Component {
     private _redSlider: cc.Slider = null;
     private _redSliderLabel: cc.Label = null;
-
     private _greenSlider: cc.Slider = null;
     private _greenSliderLabel: cc.Label = null;
-
     private _blueSlider: cc.Slider = null;
     private _blueSliderLabel: cc.Label = null;
-
     private _alphaSlider: cc.Slider = null;
     private _alphaSliderLabel: cc.Label = null;
-
     private _radiuSlider: cc.Slider = null;
     private _radiuSliderLabel: cc.Label = null;
 
     private _cropAlphaToggle: cc.Toggle = null;
+    private _enableFogToggle: cc.Toggle = null;
 
     private _examplesParentNode: cc.Node = null;
 
@@ -28,20 +25,17 @@ export default class LocalDiffusionEffectScene extends cc.Component {
 
         this._redSlider = cc.find("Canvas/Content/Controller/ColorRedSlider/Slider").getComponent(cc.Slider);
         this._redSliderLabel = cc.find("Canvas/Content/Controller/ColorRedSlider/ValueLabel").getComponent(cc.Label);
-
         this._greenSlider = cc.find("Canvas/Content/Controller/ColorGreenSlider/Slider").getComponent(cc.Slider);
         this._greenSliderLabel = cc.find("Canvas/Content/Controller/ColorGreenSlider/ValueLabel").getComponent(cc.Label);
-
         this._blueSlider = cc.find("Canvas/Content/Controller/ColorBlueSlider/Slider").getComponent(cc.Slider);
         this._blueSliderLabel = cc.find("Canvas/Content/Controller/ColorBlueSlider/ValueLabel").getComponent(cc.Label);
-
         this._alphaSlider = cc.find("Canvas/Content/Controller/ColorAlphaSlider/Slider").getComponent(cc.Slider);
         this._alphaSliderLabel = cc.find("Canvas/Content/Controller/ColorAlphaSlider/ValueLabel").getComponent(cc.Label);
-
         this._radiuSlider = cc.find("Canvas/Content/Controller/RadiuSlider/Slider").getComponent(cc.Slider);
         this._radiuSliderLabel = cc.find("Canvas/Content/Controller/RadiuSlider/ValueLabel").getComponent(cc.Label);
 
         this._cropAlphaToggle = cc.find("Canvas/Content/Controller/CropAlphaToggle/Toggle").getComponent(cc.Toggle);
+        this._enableFogToggle = cc.find("Canvas/Content/Controller/EnableFogToggle/Toggle").getComponent(cc.Toggle);
 
         // 代码添加控制脚本
         this._examplesParentNode = cc.find("Canvas/Content/Examples");
@@ -57,6 +51,7 @@ export default class LocalDiffusionEffectScene extends cc.Component {
         this._alphaSlider.node.on("slide", this._onPropertyChanged, this);
         this._radiuSlider.node.on("slide", this._onPropertyChanged, this);
         this._cropAlphaToggle.node.on("toggle", this._onPropertyChanged, this);
+        this._enableFogToggle.node.on("toggle", this._onPropertyChanged, this);
     }
 
     onDisable() {
@@ -66,6 +61,7 @@ export default class LocalDiffusionEffectScene extends cc.Component {
         this._alphaSlider.node.off("slide", this._onPropertyChanged, this);
         this._radiuSlider.node.off("slide", this._onPropertyChanged, this);
         this._cropAlphaToggle.node.off("toggle", this._onPropertyChanged, this);
+        this._enableFogToggle.node.off("toggle", this._onPropertyChanged, this);
     }
 
     start() {
@@ -90,7 +86,8 @@ export default class LocalDiffusionEffectScene extends cc.Component {
                     Math.round(255 * this._alphaSlider.progress)
                 ),
                 radius: this._radiuSlider.progress,
-                cropAlpha: this._cropAlphaToggle.isChecked
+                cropAlpha: this._cropAlphaToggle.isChecked,
+                enableFog: this._enableFogToggle.isChecked
             });
         });
     }