add AllowSceneModification option to ExportOptions

- know when to modify scene, when not to

Author: vkovec

Assets/FbxExporters/Editor/ConvertToPrefabSettings.cs

@@ -76,5 +76,6 @@ public class ConvertToPrefabSettingsSerialize : ExportOptionsSettingsSerializeBa
         public override ExportSettings.LODExportType LODExportType { get { return ExportSettings.LODExportType.All; } }
         public override ExportSettings.ObjectPosition ObjectPosition { get { return ExportSettings.ObjectPosition.Reset; } }
         public override bool ExportUnrendered { get { return true; } }
+        public override bool AllowSceneModification { get { return true; } }
     }
 }

Assets/FbxExporters/Editor/ExportModelSettings.cs

@@ -105,6 +105,7 @@ public interface IExportOptions {
         ExportSettings.ObjectPosition ObjectPosition { get; }
         bool AnimateSkinnedMesh { get; }
         bool UseMayaCompatibleNames { get; }
+        bool AllowSceneModification { get; }
         bool ExportUnrendered { get; }
         Transform AnimationSource { get; }
         Transform AnimationDest { get; }
@@ -145,6 +146,7 @@ public abstract class ExportOptionsSettingsSerializeBase : IExportOptions
         public abstract ExportSettings.LODExportType LODExportType { get; }
         public abstract ExportSettings.ObjectPosition ObjectPosition { get; }
         public abstract bool ExportUnrendered { get; }
+        public abstract bool AllowSceneModification { get; }
     }
 
     [System.Serializable]
@@ -163,5 +165,6 @@ public class ExportModelSettingsSerialize : ExportOptionsSettingsSerializeBase
         public void SetObjectPosition(ExportSettings.ObjectPosition objPos){ this.objectPosition = objPos; }
         public override bool ExportUnrendered { get { return exportUnrendered; } }
         public void SetExportUnredererd(bool exportUnrendered){ this.exportUnrendered = exportUnrendered; }
+        public override bool AllowSceneModification { get { return false; } }
     }
 }

Assets/FbxExporters/Editor/FbxExporter.cs

@@ -2212,6 +2212,10 @@ protected int ExportTransformHierarchy(
                 string fbxName = unityGo.name;
                 if (ExportOptions.UseMayaCompatibleNames) {
                     fbxName = ConvertToMayaCompatibleName (unityGo.name);
+                    if (ExportOptions.AllowSceneModification)
+                    {
+                        unityGo.name = fbxName;
+                    }
                 }
 
                 // create an FbxNode and add it as a child of parent