Add doNotSerialize support to transform nodes

src/Meshes/subMesh.ts

@@ -9,7 +9,6 @@ import { Constants } from "../Engines/constants";
 import { DataBuffer } from './dataBuffer';
 import { extractMinAndMaxIndexed } from '../Maths/math.functions';
 import { Plane } from '../Maths/math.plane';
-import { InstancedMesh } from './instancedMesh';
 
 declare type Collider = import("../Collisions/collider").Collider;
 declare type Material = import("../Materials/material").Material;

src/Misc/sceneSerializer.ts

@@ -248,7 +248,9 @@ export class SceneSerializer {
         // Transform nodes
         serializationObject.transformNodes = [];
         for (index = 0; index < scene.transformNodes.length; index++) {
-            serializationObject.transformNodes.push(scene.transformNodes[index].serialize());
+            if (!scene.transformNodes[index].doNotSerialize) {
+                serializationObject.transformNodes.push(scene.transformNodes[index].serialize());
+            }
         }
 
         // Geometries

src/scene.ts

@@ -54,7 +54,6 @@ import { Color4, Color3 } from './Maths/math.color';
 import { Plane } from './Maths/math.plane';
 import { Frustum } from './Maths/math.frustum';
 import { UniqueIdGenerator } from './Misc/uniqueIdGenerator';
-import { InstancedMesh } from './Meshes/instancedMesh';
 
 declare type Ray = import("./Culling/ray").Ray;
 declare type TrianglePickingPredicate = import("./Culling/ray").TrianglePickingPredicate;