diff --git a/lab2/src/main.cpp b/lab2/src/main.cpp
index 4b974f5..cc157f2 100644
--- a/lab2/src/main.cpp
+++ b/lab2/src/main.cpp
@@ -97,8 +97,13 @@ void mainloop(Camera& camera) {
         if (Events::jpressed(GLFW_KEY_TAB)){
             Events::toggleCursor();
         }
-        if (Events::jpressed(GLFW_KEY_F3)){
+        if (Events::jpressed(GLFW_KEY_F)){
             devdata = !devdata;
+            if (devdata) {
+                glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
+            } else {
+                glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+            }
         }
 
         updateCameraPosition(camera, delta);