Fix for node group add menu, groups from old files wouldn't show up there.

Reason was that node trees are now associated to specific node types (NODE_GROUP in particular) by the ntree->nodetype id.

1 files changed, 11 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 66e38f1c5f8..d1a19f24b97 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -11991,6 +11991,17 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 				ntree->update |= NTREE_UPDATE;
 			}
 		}
+
+		{
+			/* Initialize group tree nodetypes.
+			 * These are used to distinguish tree types and
+			 * associate them with specific node types for polling.
+			 */
+			bNodeTree *ntree;
+			/* all node trees in main->nodetree are considered groups */
+			for (ntree=main->nodetree.first; ntree; ntree=ntree->id.next)
+				ntree->nodetype = NODE_GROUP;
+		}
 	}
 
 	/* put compatibility code here until next subversion bump */