diff --git a/src/core/engine/Viewport.ts b/src/core/engine/Viewport.ts
index ea87c40..5a39d37 100644
--- a/src/core/engine/Viewport.ts
+++ b/src/core/engine/Viewport.ts
@@ -158,12 +158,12 @@ export default class Viewport {
     $(statsControls.dom).children().css('height', '28px')
 
     // 监听事件
-    this.watchList.push(watch(() => this.state.camera.position.y, (newVal) => {
-      if (!this.state.isReady) {
-        return
-      }
-      this.updateGridVisibility()
-    }))
+    // this.watchList.push(watch(() => this.state.camera.position.y, (newVal) => {
+    //   if (!this.state.isReady) {
+    //     return
+    //   }
+    //   this.updateGridVisibility()
+    // }))
 
     // 监听窗口大小变化
     if (this.resizeObserver) {
@@ -292,7 +292,7 @@ export default class Viewport {
       const camera = this.camera
 
       this.state.camera.position.x = camera.position.x
-      this.state.camera.position.y = this.getEffectiveViewDistance()
+      this.state.camera.position.y = camera.zoom // this.getEffectiveViewDistance()
       this.state.camera.position.z = camera.position.z
     }
   }