Made WaitUntilIdle callable from managed code

Author: david-lively

Runtime/Cesium3DTileset.cs

@@ -745,6 +745,8 @@ public bool createPhysicsMeshes
         /// </summary>
         public partial void RecreateTileset();
 
+        public partial void WaitUntilIdle();
+
         /// <summary>
         /// Zoom the Editor camera to this tileset. This method does nothing outside of the Editor.
         /// </summary>

Runtime/ConfigureReinterop.cs

@@ -288,6 +288,7 @@ public void ExposeToCPP()
             tileset.showCreditsOnScreen = tileset.showCreditsOnScreen;
             tileset.ionServer = tileset.ionServer;
             tileset.RecreateTileset();
+            tileset.WaitUntilIdle();
 
             GraphicsFormat gfxFmt = GraphicsFormat.RGB_ETC_UNorm;
             FormatUsage fmtUsage = FormatUsage.Sample;
@@ -975,4 +976,5 @@ Cesium3DTilesetLoadFailureDetails tilesetDetails
             var message = exception.Message;
         }
     }
-}
+}
+

native~/Runtime/src/Cesium3DTilesetImpl.cpp

@@ -1,5 +1,6 @@
 #include "Cesium3DTilesetImpl.h"
 
+#include "../../extern/cesium-native/Cesium3DTilesSelection/src/TilesetContentManager.h"
 #include "CameraManager.h"
 #include "CesiumEllipsoidImpl.h"
 #include "CesiumIonServerHelper.h"
@@ -563,6 +564,10 @@ void Cesium3DTilesetImpl::DestroyTileset(
   this->_destroyTilesetOnNextUpdate = false;
 }
 
+void Cesium3DTilesetImpl::WaitUntilIdle(const DotNet::CesiumForUnity::Cesium3DTileset& tileset) {
+  this->getTileset()->getTilesetContentManager().waitUntilIdle();
+}
+
 void Cesium3DTilesetImpl::LoadTileset(
     const DotNet::CesiumForUnity::Cesium3DTileset& tileset) {
   TilesetOptions options{};

native~/Runtime/src/Cesium3DTilesetImpl.h

@@ -52,6 +52,8 @@ class Cesium3DTilesetImpl : public CesiumImpl<Cesium3DTilesetImpl> {
   void UpdateOverlayMaterialKeys(
       const DotNet::CesiumForUnity::Cesium3DTileset& tileset);
 
+  void WaitUntilIdle(const DotNet::CesiumForUnity::Cesium3DTileset& tileset);
+
   float
   ComputeLoadProgress(const DotNet::CesiumForUnity::Cesium3DTileset& tileset);