diff --git a/assets/effects/sprite-local-diffusion.effect b/assets/effects/sprite-point-light.effect
similarity index 99%
rename from assets/effects/sprite-local-diffusion.effect
rename to assets/effects/sprite-point-light.effect
index 93550c5..f66fed9 100644
--- a/assets/effects/sprite-local-diffusion.effect
+++ b/assets/effects/sprite-point-light.effect
@@ -3,7 +3,7 @@
 // 原理：
 // 1. 画圆
 // 2. 圆心高亮（透明度=1.0），圆边缘不亮（透明度=0.0）
-// 4. 在原图像上方叠加圆
+// 3. 在原图像上方叠加圆
 
 CCEffect %{
   techniques:
diff --git a/assets/effects/sprite-local-diffusion.effect.meta b/assets/effects/sprite-point-light.effect.meta
similarity index 100%
rename from assets/effects/sprite-local-diffusion.effect.meta
rename to assets/effects/sprite-point-light.effect.meta
diff --git a/assets/materials/sprite-local-diffusion.mtl b/assets/materials/sprite-point-light.mtl
similarity index 100%
rename from assets/materials/sprite-local-diffusion.mtl
rename to assets/materials/sprite-point-light.mtl
diff --git a/assets/materials/sprite-local-diffusion.mtl.meta b/assets/materials/sprite-point-light.mtl.meta
similarity index 100%
rename from assets/materials/sprite-local-diffusion.mtl.meta
rename to assets/materials/sprite-point-light.mtl.meta
diff --git a/assets/scenes/LocalDiffusionEffectScene.fire b/assets/scenes/PointLightEffectScene.fire
similarity index 100%
rename from assets/scenes/LocalDiffusionEffectScene.fire
rename to assets/scenes/PointLightEffectScene.fire
diff --git a/assets/scenes/LocalDiffusionEffectScene.fire.meta b/assets/scenes/PointLightEffectScene.fire.meta
similarity index 100%
rename from assets/scenes/LocalDiffusionEffectScene.fire.meta
rename to assets/scenes/PointLightEffectScene.fire.meta
diff --git a/assets/scripts/LocalDiffusionCtrl.ts b/assets/scripts/PointLightCtrlComponent.ts
similarity index 91%
rename from assets/scripts/LocalDiffusionCtrl.ts
rename to assets/scripts/PointLightCtrlComponent.ts
index 5705190..0d91405 100644
--- a/assets/scripts/LocalDiffusionCtrl.ts
+++ b/assets/scripts/PointLightCtrlComponent.ts
@@ -1,8 +1,8 @@
 const { ccclass, property } = cc._decorator;
 
 @ccclass
-export default class LocalDiffusionCtrl extends cc.Component {
-    private _localDiffusionUniform: LocalDiffusionUniform = new LocalDiffusionUniform();
+export default class PointLightCtrlComponent extends cc.Component {
+    private _localDiffusionUniform: PointLightUniform = new PointLightUniform();
 
     onEnable() {
         this.node.on(cc.Node.EventType.TOUCH_START, this._onTouchStart, this);
@@ -34,7 +34,7 @@ export default class LocalDiffusionCtrl extends cc.Component {
         this._updateMaterial();
     }
 
-    private _onPropertyChange(localDiffusionUniform: LocalDiffusionUniform) {
+    private _onPropertyChange(localDiffusionUniform: PointLightUniform) {
         this._localDiffusionUniform.centerColor = localDiffusionUniform.centerColor;
         this._localDiffusionUniform.radius = localDiffusionUniform.radius;
         this._localDiffusionUniform.cropAlpha = localDiffusionUniform.cropAlpha;
@@ -55,7 +55,7 @@ export default class LocalDiffusionCtrl extends cc.Component {
     }
 }
 
-export class LocalDiffusionUniform {
+export class PointLightUniform {
     /**
      * 中心点颜色
      */
diff --git a/assets/scripts/LocalDiffusionCtrl.ts.meta b/assets/scripts/PointLightCtrlComponent.ts.meta
similarity index 100%
rename from assets/scripts/LocalDiffusionCtrl.ts.meta
rename to assets/scripts/PointLightCtrlComponent.ts.meta
diff --git a/assets/scripts/LocalDiffusionEffectScene.ts b/assets/scripts/PointLightEffectScene.ts
similarity index 94%
rename from assets/scripts/LocalDiffusionEffectScene.ts
rename to assets/scripts/PointLightEffectScene.ts
index 492b374..8ccb497 100644
--- a/assets/scripts/LocalDiffusionEffectScene.ts
+++ b/assets/scripts/PointLightEffectScene.ts
@@ -1,9 +1,9 @@
-import LocalDiffusionCtrl, { LocalDiffusionUniform } from "./LocalDiffusionCtrl";
+import PointLightCtrlComponent, { PointLightUniform } from "./PointLightCtrlComponent";
 
 const { ccclass, property } = cc._decorator;
 
 @ccclass
-export default class LocalDiffusionEffectScene extends cc.Component {
+export default class PointLightEffectScene extends cc.Component {
     private _redSlider: cc.Slider = null;
     private _redSliderLabel: cc.Label = null;
     private _greenSlider: cc.Slider = null;
@@ -40,7 +40,7 @@ export default class LocalDiffusionEffectScene extends cc.Component {
         // 代码添加控制脚本
         this._examplesParentNode = cc.find("Canvas/Content/Examples");
         this._examplesParentNode.children.forEach(childNode => {
-            childNode.addComponent(LocalDiffusionCtrl);
+            childNode.addComponent(PointLightCtrlComponent);
         });
     }
 
@@ -78,7 +78,7 @@ export default class LocalDiffusionEffectScene extends cc.Component {
 
         // 通知子节点更新材质
         this._examplesParentNode.children.forEach(childNode => {
-            childNode.emit("on_property_change", <LocalDiffusionUniform>{
+            childNode.emit("on_property_change", <PointLightUniform>{
                 centerColor: cc.color(
                     Math.round(255 * this._redSlider.progress),
                     Math.round(255 * this._greenSlider.progress),
diff --git a/assets/scripts/LocalDiffusionEffectScene.ts.meta b/assets/scripts/PointLightEffectScene.ts.meta
similarity index 100%
rename from assets/scripts/LocalDiffusionEffectScene.ts.meta
rename to assets/scripts/PointLightEffectScene.ts.meta
diff --git a/static/effects/2d-sprite-local-diffusion.gif b/static/effects/2d-sprite-point-light.gif
similarity index 100%
rename from static/effects/2d-sprite-local-diffusion.gif
rename to static/effects/2d-sprite-point-light.gif