Calculate normals if there aren't any, texture store file path

src/camera.cpp

@@ -63,19 +63,19 @@ namespace simpleengine {
         }
 
         if (glfwGetKey(window, GLFW_KEY_UP) == GLFW_PRESS) {
-            rotation.z += camera_speed;
+            rotation.z += camera_speed * .3;
         }
 
         if (glfwGetKey(window, GLFW_KEY_DOWN) == GLFW_PRESS) {
-            rotation.z -= camera_speed;
+            rotation.z -= camera_speed * .3;
         }
 
         if (glfwGetKey(window, GLFW_KEY_LEFT) == GLFW_PRESS) {
-            rotation.y -= camera_speed;
+            rotation.y -= camera_speed * .3;
         }
 
         if (glfwGetKey(window, GLFW_KEY_RIGHT) == GLFW_PRESS) {
-            rotation.y += camera_speed;
+            rotation.y += camera_speed * .3;
         }
 
         // Limit the pitch of the camera.

src/gfx/model.cpp

@@ -73,8 +73,10 @@ namespace simpleengine::gfx {
             simpleengine::Vectorf position(mesh->mVertices[i].x, mesh->mVertices[i].y, mesh->mVertices[i].z);
             vertex.position = position;
 
-            glm::vec3 normal(mesh->mNormals[i].x, mesh->mNormals[i].y, mesh->mNormals[i].z);
+            if (mesh->HasNormals()) {
-            vertex.normal = normal;
+                glm::vec3 normal(mesh->mNormals[i].x, mesh->mNormals[i].y, mesh->mNormals[i].z);
+                vertex.normal = normal;
+            }
 
             if (mesh->mTextureCoords[0]) {
                 glm::vec2 tex_coord(mesh->mTextureCoords[0][i].x, mesh->mTextureCoords[0][i].y);
@@ -142,7 +144,13 @@ namespace simpleengine::gfx {
             }
         }
 
-        return Mesh(vertices, indices, mat);
+        Mesh se_mesh(vertices, indices, mat);
+
+        if (!mesh->HasNormals()) {
+            se_mesh.calculate_normals();
+        }
+
+        return se_mesh;
     }
 
     std::unordered_map<aiTextureType, std::vector<Texture>> load_all_textures(aiMaterial* material) {

src/gfx/texture.cpp

@@ -4,7 +4,7 @@
 #include <stb_image.h>
 
 namespace simpleengine::gfx {
-    Texture::Texture(const char* path, aiTextureType type, int flags): type(type) {
+    Texture::Texture(const char* path, aiTextureType type, int flags): type(type), path(path) {
         bool img_2d = flags & TextureFlags::TexFlags_IMG_2D;
         bool flip_vertically = flags & TextureFlags::TexFlags_FLIP_VERTICALLY;
         bool mipmap = flags & TextureFlags::TexFlags_MIPMAP;