diff --git a/README.md b/README.md
index 0e30ef7..a9c662b 100644
--- a/README.md
+++ b/README.md
@@ -48,8 +48,9 @@ Operation                   | Description
 --------------------------- | ---------------------------
   del_model <reg_ex>  | Deletes all models whose name contains the regular expression <reg_ex>.
   geo_name <name>     | Change the .geo's name to <name>.
-  rename_model <new> <old> | Rename a model from <new> to <old>.
-
+  rename_model <old> <new> | Rename a model from <old> to <new>.
+  rename_texture <old> <new> | Rename a texture from <old> to <new>.
+  rescale_all <scale> | Rescale all vertices in all models by multiplying them all by <scale> .
 Multiple operations can be specified and performed in the same run.
 
 ## Known Issues
diff --git a/geo_edit.py b/geo_edit.py
index b51a07d..4e14123 100755
--- a/geo_edit.py
+++ b/geo_edit.py
@@ -14,6 +14,8 @@ if len(sys.argv) < 4:
     print("    del_model <reg_ex_filter>    Delete models with the name matching regular expression.")
     print("    geo_name <geo_name>          Rename the name of the .geo .")
     print("    rename_model <old> <new>     Rename model <old> to <new>.")
+    print("    rename_texture <old> <new>   Rename texture <old> to <new>.")
+    print("    rescale_all <scale>          Rescale all models by the given amount.")
     exit()
 
 fn_in = sys.argv[1]
@@ -54,7 +56,7 @@ while arg_i < len(sys.argv):
         nameold = bytes(sys.argv[arg_i], "utf-8")
         namenew = bytes(sys.argv[arg_i+1], "utf-8")
         arg_i += 2
-        renamed = False
+        renamed = 0
         for m in geo.models:
             if m.name == nameold:
                 m.name = namenew
@@ -63,6 +65,26 @@ while arg_i < len(sys.argv):
                 break
         if renamed <= 0:
             print("   **Warning!*** Rename failed, no model name matched '%s'." % (nameold.decode("utf-8"), ))
+    elif operation == "rename_texture":
+        nameold = bytes(sys.argv[arg_i], "utf-8")
+        namenew = bytes(sys.argv[arg_i+1], "utf-8")
+        arg_i += 2
+        renamed = 0
+        for i, t in enumerate(geo.header_texnames):
+            if t == nameold:
+                geo.header_texnames[i] = namenew
+                print("Renamed texture '%s' to '%s'" % (nameold.decode("utf-8"), namenew.decode("utf-8")))
+                renamed += 1
+                break
+        if renamed <= 0:
+            print("   **Warning!*** Rename failed, no texture name matched '%s'." % (nameold.decode("utf-8"), ))
+    elif operation == "rescale_all":
+        scale = float(sys.argv[arg_i])
+        arg_i += 1
+        for m in geo.models:
+            for i in range(len(m.verts)):
+                for j in range(3):
+                    m.verts[i][j] *= scale
     else:
         print("Unknown operation: '%s'" % (operation, ))
         exit()