diff --git a/FinalProject/model.cpp b/FinalProject/model.cpp
index 8a69afc..f8ae923 100644
--- a/FinalProject/model.cpp
+++ b/FinalProject/model.cpp
@@ -68,8 +68,8 @@ Mesh Model::processMesh(aiMesh* mesh, const aiScene* scene) {
         // 使用循环避免代码重复，如果可行的话，可以在此循环中确定法向量等信息
         for (int j = 0; j < 3; j++) {
             vertexPosition[j] = mesh->mVertices[i][j];
-            left_down_back[j] = left_down_back[j] < vertexPosition[j] ? left_down_back[j] : vertexPosition[j];
-            right_up_front[j] = right_up_front[j] > vertexPosition[j] ? right_up_front[j] : vertexPosition[j];
+            _left_down_back[j] = _left_down_back[j] < vertexPosition[j] ? _left_down_back[j] : vertexPosition[j];
+            _right_up_front[j] = _right_up_front[j] > vertexPosition[j] ? _right_up_front[j] : vertexPosition[j];
         }
 
         //vertexPosition.x = mesh->mVertices[i].x;
diff --git a/FinalProject/model.h b/FinalProject/model.h
index 636253b..951bde1 100644
--- a/FinalProject/model.h
+++ b/FinalProject/model.h
@@ -20,9 +20,9 @@ private:
     MODELSTATUS _status = LOADING;
 
     // smallest point
-    glm::vec3 left_down_back = glm::vec3(3e37f, 3e37f, 3e37f);
+    glm::vec3 _left_down_back = glm::vec3(3e37f, 3e37f, 3e37f);
     // largest point
-    glm::vec3  right_up_front = -left_down_back;
+    glm::vec3 _right_up_front = -_left_down_back;
 
 public:
     Model(std::string path);
@@ -31,6 +31,13 @@ public:
 public:
     inline MODELSTATUS status() const { return _status; }
 
+    inline glm::vec3 get_upper_bound() {
+        return _right_up_front;
+    }
+    inline glm::vec3 get_lower_bound() {
+        return _left_down_back;
+    }
+
 private:
     void loadModel(std::string path);
     void processNode(aiNode* node, const aiScene* scene);
diff --git a/enc_temp_folder/253395836ff6e468d34a6e0bb41a535/model.h b/enc_temp_folder/253395836ff6e468d34a6e0bb41a535/model.h
new file mode 100644
index 0000000..636253b
--- /dev/null
+++ b/enc_temp_folder/253395836ff6e468d34a6e0bb41a535/model.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <vector>
+#include <string>
+#include <Assimp/Importer.hpp>
+#include <Assimp/scene.h>
+#include <Assimp/postprocess.h>
+
+#include "mesh.h"
+#include "shader.h"
+#include <limits>
+class Model {
+public:
+    enum MODELSTATUS { LOADING, LOADED, ERR };
+
+private:
+    std::vector<Mesh> _meshes;
+    std::vector<Texture> _texturesLoaded;
+    std::string _directory;
+    MODELSTATUS _status = LOADING;
+
+    // smallest point
+    glm::vec3 left_down_back = glm::vec3(3e37f, 3e37f, 3e37f);
+    // largest point
+    glm::vec3  right_up_front = -left_down_back;
+
+public:
+    Model(std::string path);
+    ~Model();
+
+public:
+    inline MODELSTATUS status() const { return _status; }
+
+private:
+    void loadModel(std::string path);
+    void processNode(aiNode* node, const aiScene* scene);
+    Mesh processMesh(aiMesh* mesh, const aiScene* scene);
+    std::vector<Texture> loadMaterialTextures(aiMaterial* mat, aiTextureType type, TextureType textureType);
+
+public:
+    void render(const ShaderProgram& shader) const;
+};
\ No newline at end of file