diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 0725045..8956eca 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -280,7 +280,7 @@ int MapInstance::AllocUniid()
 void MapInstance::OutputObjFile()
 {
     std::vector<a8::Vec2> vertexs;
-    std::vector<std::tuple<int, int, int, int>> faces;
+    std::vector<std::tuple<int, int, int>> faces;
     vertexs.reserve(10000);
     for (auto& pair : uniid_hash_) {
         for (ColliderComponent* collider : *pair.second->GetColliders()) {
@@ -299,13 +299,21 @@ void MapInstance::OutputObjFile()
                     vert.y -= aabb_box->_max.y - aabb_box->_min.y;
                     vertexs.push_back(vert);
                 }
+                //0 1 2
                 faces.push_back
                     (std::make_tuple
                      (
-                      vertexs.size() - 1,
-                      vertexs.size() - 2,
-                      vertexs.size() - 3,
-                      vertexs.size() - 4
+                      vertexs.size() - 4 + 1,
+                      vertexs.size() - 3 + 1,
+                      vertexs.size() - 2 + 1
+                      ));
+                //0 2 3
+                faces.push_back
+                    (std::make_tuple
+                     (
+                      vertexs.size() - 4 + 1,
+                      vertexs.size() - 2 + 1,
+                      vertexs.size() - 1 + 1
                       ));
             }
         }
@@ -313,20 +321,57 @@ void MapInstance::OutputObjFile()
     {
         std::string filename = a8::Format("%s.obj", {map_tpl_name_});
         FILE* fp = fopen(filename.c_str(), "wb");
+        #if 1
+        {
+            vertexs.clear();
+            faces.clear();
+            {
+                a8::Vec2 vert;
+                vert.x = 0 - map_meta_->i->map_width() / 2.0f;
+                vert.y = 0 - map_meta_->i->map_height() / 2.0f;
+
+                vertexs.push_back(vert);
+                vert.y += map_meta_->i->map_height();
+                vertexs.push_back(vert);
+                vert.x += map_meta_->i->map_width();
+                vertexs.push_back(vert);
+                vert.y -= map_meta_->i->map_height();
+                vertexs.push_back(vert);
+
+                //0 1 2
+                faces.push_back
+                    (std::make_tuple
+                     (
+                      vertexs.size() - 4 + 1,
+                      vertexs.size() - 3 + 1,
+                      vertexs.size() - 2 + 1
+                      ));
+                //0 2 3
+                faces.push_back
+                    (std::make_tuple
+                     (
+                      vertexs.size() - 4 + 1,
+                      vertexs.size() - 2 + 1,
+                      vertexs.size() - 1 + 1
+                      ));
+            }
+        }
+        #endif
         for (auto& vert : vertexs) {
             std::string data = a8::Format("v %f %f %f\r\n",
                                           {
                                            vert.x,
+                                           -10,
                                            vert.y,
-                                           0
                                           });
             fwrite(data.data(), 1, data.size(), fp);
         }
         for (auto& tuple : faces) {
-            std::string data = a8::Format("f %d %d %d %d\r\n",
+            std::string data = a8::Format("f %d %d %d\r\n",
                                           {
                                            std::get<0>(tuple),
                                            std::get<1>(tuple),
+                                           std::get<2>(tuple)
                                           });
             fwrite(data.data(), 1, data.size(), fp);
         }