Update

apps/LoopThroughWithOpenGLCompositing/LoopThroughWithOpenGLCompositing.cpp

@@ -210,6 +210,14 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 			wglMakeCurrent( NULL, NULL );
 			break;
 
+		case WM_KEYDOWN:
+			if (pOpenGLComposite && (wParam == 'R' || wParam == 'r'))
+			{
+				pOpenGLComposite->ReloadShader();
+				InvalidateRect(hWnd, NULL, FALSE);
+			}
+			break;
+
 		default:
 			return (DefWindowProc(hWnd, message, wParam, lParam));
 	}