diff --git a/src/mesh.cpp b/src/mesh.cpp
index a371ec2..de30731 100644
--- a/src/mesh.cpp
+++ b/src/mesh.cpp
@@ -18,7 +18,7 @@ void assimpLogCB(const char* message, char* user);
 meMeshInfo* allocateMeshInfo(uint num_vertices, uint num_indices, bool has_normals, bool has_texture);
 void freeMesh(meMeshInfo* mesh);
 inline glm::vec3 copyVector(aiVector3D v_in, glm::vec3& v_out);
-meMeshInfo* copyMeshInfo(const char* data_dir, const aiScene* scene, aiMesh* mesh);
+meMeshInfo* copyMeshInfo(const aiScene* scene, aiMesh* mesh);
 bool loadDiffuseTexture(const char* data_dir, const aiScene* scene, aiMesh* mesh, meMeshInfo* mi);
 
 // interface
@@ -55,9 +55,8 @@ meLoadFromFile(meMeshGroup& mesh_group, const char* data_dir, const char* filena
 	mesh_group.use_normals = scene->mMeshes[0]->HasNormals();
 
 	for (uint i = 0; i < scene->mNumMeshes; i++) {
-		//mesh_group.meshes[i] = copyMeshInfo(data_dir, scene, scene->mMeshes[i]);
 		aiMesh* mesh = scene->mMeshes[i];
-		meMeshInfo* mi = copyMeshInfo(data_dir, scene, mesh);
+		meMeshInfo* mi = copyMeshInfo(scene, mesh);
 
 		if (mesh->HasTextureCoords(0)) {
 			if (!loadDiffuseTexture(data_dir, scene, mesh, mi)) {
@@ -168,7 +167,7 @@ loadDiffuseTexture(const char* data_dir, const aiScene* scene, aiMesh* mesh, meM
 }
 
 meMeshInfo*
-copyMeshInfo(const char* data_dir, const aiScene* scene, aiMesh* mesh)
+copyMeshInfo(const aiScene* scene, aiMesh* mesh)
 {
 	bool has_tex = mesh->HasTextureCoords(0);
 	bool has_normals = mesh->HasNormals();
@@ -176,7 +175,6 @@ copyMeshInfo(const char* data_dir, const aiScene* scene, aiMesh* mesh)
 
 	// copy vertices, normals, and texture coords
 	for (uint i = 0; i < mi->num_vertices; i++) {
-		//TODO: can probably use glm::vec3 constructor here and remove copyVector helper
 		copyVector(mesh->mVertices[i], mi->vertices[i]);
 
 		if (has_normals)