diff --git a/src/primitives.rs b/src/primitives.rs
index 772c694..023945d 100644
--- a/src/primitives.rs
+++ b/src/primitives.rs
@@ -226,9 +226,9 @@ pub fn generate_partial_unit_cube(face_descriptions:CubeFaceDescription)->Mesh{
 			//create new transform_index
 			let transform_index=transforms.len();
 			transforms.push(face_description.transform);
-			for tex in CUBE_DEFAULT_TEXTURE_COORDS{
-				generated_tex.push(face_description.transform.transform_point2(tex));
-			}
+			generated_tex.extend(CUBE_DEFAULT_TEXTURE_COORDS.map(|tex|
+				face_description.transform.transform_point2(tex)
+			));
 			transform_index
 		} as u32;
 		let color_index=if let Some(color_index)=generated_color.iter().position(|&color|color==face_description.color){
@@ -339,9 +339,9 @@ pub fn generate_partial_unit_wedge(face_descriptions:WedgeFaceDescription)->Mesh
 			//create new transform_index
 			let transform_index=transforms.len();
 			transforms.push(face_description.transform);
-			for tex in CUBE_DEFAULT_TEXTURE_COORDS{
-				generated_tex.push(face_description.transform.transform_point2(tex));
-			}
+			generated_tex.extend(CUBE_DEFAULT_TEXTURE_COORDS.map(|tex|
+				face_description.transform.transform_point2(tex)
+			));
 			transform_index
 		} as u32;
 		let color_index=if let Some(color_index)=generated_color.iter().position(|&color|color==face_description.color){
@@ -450,9 +450,9 @@ pub fn generate_partial_unit_cornerwedge(face_descriptions:CornerWedgeFaceDescri
 			//create new transform_index
 			let transform_index=transforms.len();
 			transforms.push(face_description.transform);
-			for tex in CUBE_DEFAULT_TEXTURE_COORDS{
-				generated_tex.push(face_description.transform.transform_point2(tex));
-			}
+			generated_tex.extend(CUBE_DEFAULT_TEXTURE_COORDS.map(|tex|
+				face_description.transform.transform_point2(tex)
+			));
 			transform_index
 		} as u32;
 		let color_index=if let Some(color_index)=generated_color.iter().position(|&color|color==face_description.color){