diff --git a/leenkx/Sources/iron/App.hx b/leenkx/Sources/iron/App.hx
index 1141187..eb43845 100644
--- a/leenkx/Sources/iron/App.hx
+++ b/leenkx/Sources/iron/App.hx
@@ -54,6 +54,23 @@ class App {
 		if (Scene.active == null || !Scene.active.ready) return;
 		
 		iron.system.Time.update();
+		
+		
+		if (lastw == -1) {
+			lastw = App.w();
+			lasth = App.h();
+		}
+		if (lastw != App.w() || lasth != App.h()) {
+			if (onResize != null) onResize();
+			else {
+				if (Scene.active != null && Scene.active.camera != null) {
+					Scene.active.camera.buildProjection();
+				}
+			}
+		}
+		lastw = App.w();
+		lasth = App.h();
+		
 		if (pauseUpdates) return;
 
 		#if lnx_debug