change the GroundSkyBox

modules/thirdpart/index.js

@@ -35,7 +35,8 @@ const thirdPart = {
   CustomShaderMode: Cesium.CustomShaderMode,
   CustomShaderTranslucencyMode: Cesium.CustomShaderTranslucencyMode,
   CustomShader: Cesium.CustomShader,
-  UniformType: Cesium.UniformType
+  UniformType: Cesium.UniformType,
+  GroundSkyBox: Cesium.GroundSkyBox
 }
 
 export default thirdPart

packages/core/src/components.js

@@ -204,11 +204,6 @@ import WindLayer from '@dc-modules/wind/WindLayer'
  */
 import HeatLayer from '@dc-modules/heat/HeatLayer'
 
-/**
- * exts
- */
-import { GroundSkyBox } from '@dc-modules/exts'
-
 /**
  * thirdPart
  */
@@ -395,10 +390,6 @@ const components = {
    * heat
    */
   HeatLayer,
-  /**
-   * exts
-   */
-  GroundSkyBox,
   /**
    * thirdPart
    */