From 8f81a9bbb3aeb0db1d7672f465afcd7a06ed4cda Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 7 Apr 2009 00:32:01 +0000
Subject: [PATCH] better premunge before flattening

---
 panda/src/egg2pg/load_egg_file.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/panda/src/egg2pg/load_egg_file.cxx b/panda/src/egg2pg/load_egg_file.cxx
index b2682a3607..d74c28f674 100644
--- a/panda/src/egg2pg/load_egg_file.cxx
+++ b/panda/src/egg2pg/load_egg_file.cxx
@@ -46,7 +46,13 @@ load_from_loader(EggLoader &loader) {
 
     int num_reduced = gr.flatten(loader._root, combine_siblings_bits);
     egg2pg_cat.info() << "Flattened " << num_reduced << " nodes.\n";
+
     if (egg_unify) {
+      // We want to premunge before unifying, since otherwise we risk
+      // needlessly duplicating vertices.
+      if (premunge_data) {
+        gr.premunge(loader._root, RenderState::make_empty());
+      }
       gr.collect_vertex_data(loader._root);
       gr.unify(loader._root, true);
       if (egg2pg_cat.is_debug()) {