From 11f37298bea0bf53a8da83c07446e83f5454dc0a Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Thu, 15 Sep 2011 17:23:40 +0900
Subject: [PATCH] Reveres the face windings.

Blender's vertex order and quake's vertex order seem to be opposed.
---
 tools/qfmdl/import_mdl.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/qfmdl/import_mdl.py b/tools/qfmdl/import_mdl.py
index 30a882b96..ec9d5f80b 100644
--- a/tools/qfmdl/import_mdl.py
+++ b/tools/qfmdl/import_mdl.py
@@ -175,7 +175,9 @@ def make_faces(mdl):
     faces = []
     uvs = []
     for tri in mdl.tris:
-        faces.append (tri.verts)
+        tv = tri.verts
+        tv = tv[2], tv[1], tv[0]    # flip the normal by reversing the winding
+        faces.append (tv)
         sts = []
         for v in tri.verts:
             stv = mdl.stverts[v]
@@ -186,6 +188,7 @@ def make_faces(mdl):
             # quake textures are top to bottom, but blender images
             # are bottom to top
             sts.append((s * 1.0 / mdl.skinwidth, 1 - t * 1.0 / mdl.skinheight))
+        sts = sts[2], sts[1], sts[0]    # to match face vert reversal
         uvs.append(sts)
     return faces, uvs