Explicit handling of an FBXExportNode edge-case.

code/FBXExportNode.cpp

@@ -168,7 +168,7 @@ void FBX::Node::Dump(Assimp::StreamWriterLE &s)
     DumpChildren(s);
 
     // finish, filling in end offset placeholder
-    End(s, !children.empty());
+    End(s, force_has_children || !children.empty());
 }
 
 void FBX::Node::Begin(Assimp::StreamWriterLE &s)

code/FBXExportNode.h

@@ -66,6 +66,9 @@ public: // public data members
     std::vector<FBX::Property> properties; // node properties
     std::vector<FBX::Node> children; // child nodes
 
+    // some nodes always pretend they have children...
+    bool force_has_children = false;
+
 public: // constructors
     Node() = default;
     Node(const std::string& n) : name(n) {}

code/FBXExporter.cpp

@@ -419,6 +419,7 @@ void FBXExporter::WriteReferences ()
     // always empty for now.
     // not really sure what this is for.
     FBX::Node n("References");
+    n.force_has_children = true;
     n.Dump(outfile);
 }
 
@@ -1914,11 +1915,8 @@ void FBXExporter::WriteObjects ()
 
         // this node absurdly always pretends it has children
         // (in this case it does, but just in case...)
-        asnode.Begin(outstream);
-        asnode.DumpProperties(outstream);
-        asnode.EndProperties(outstream);
-        asnode.DumpChildren(outstream);
-        asnode.End(outstream, true);
+        asnode.force_has_children = true;
+        asnode.Dump(outstream);
 
         // note: animation stacks are not connected to anything
     }
@@ -1932,11 +1930,8 @@ void FBXExporter::WriteObjects ()
         alnode.AddProperties(animlayer_uid, FBX::SEPARATOR + "AnimLayer", "");
 
         // this node absurdly always pretends it has children
-        alnode.Begin(outstream);
-        alnode.DumpProperties(outstream);
-        alnode.EndProperties(outstream);
-        alnode.DumpChildren(outstream);
-        alnode.End(outstream, true);
+        alnode.force_has_children = true;
+        alnode.Dump(outstream);
 
         // connect to the relevant animstack
         connections.emplace_back(