Merge pull request #8766 from virtualcitySYSTEMS/fixNullpointer

add nullpointer check
CesiumGS · May 4, 2020 · e5ea83c · e5ea83c
2 parents 9fb39ba + 4ecfa18
commit e5ea83c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/Source/Scene/BillboardCollection.js b/Source/Scene/BillboardCollection.js
@@ -322,7 +322,9 @@ function BillboardCollection(options) {
         var billboards = this._billboards;
         var length = billboards.length;
         for (var i = 0; i < length; ++i) {
-          billboards[i]._updateClamping();
+          if (defined(billboards[i])) {
+            billboards[i]._updateClamping();
+          }
         }
       },
       this