Fix Timer FPS calculation to avoid division by zero on the first frame

moderngl · Dec 2, 2024 · e2ff460 · e2ff460
1 parent 2ee18ef
commit e2ff460
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/moderngl_window/timers/clock.py b/moderngl_window/timers/clock.py
@@ -72,7 +72,13 @@ def next_frame(self) -> tuple[float, float]:
         self._frames += 1
         current = self.time
         delta, self._last_frame = current - self._last_frame, current
-        self._fps = 1.0 / delta
+
+        # Avoid division by zero on first frame
+        if delta > 0:
+            self._fps = 1.0 / delta
+        else:
+            self._fps = 0.0
+
         return current, delta
 
     def start(self) -> None: