Merge pull request #54788 from rcorre/orbit_clamp

editor/plugins/node_3d_editor_plugin.cpp

@@ -2245,12 +2245,14 @@ void Node3DEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
 			_menu_option(VIEW_RIGHT);
 		}
 		if (ED_IS_SHORTCUT("spatial_editor/orbit_view_down", p_event)) {
-			cursor.x_rot -= Math_PI / 12.0;
+			// Clamp rotation to roughly -90..90 degrees so the user can't look upside-down and end up disoriented.
+			cursor.x_rot = CLAMP(cursor.x_rot - Math_PI / 12.0, -1.57, 1.57);
 			view_type = VIEW_TYPE_USER;
 			_update_name();
 		}
 		if (ED_IS_SHORTCUT("spatial_editor/orbit_view_up", p_event)) {
-			cursor.x_rot += Math_PI / 12.0;
+			// Clamp rotation to roughly -90..90 degrees so the user can't look upside-down and end up disoriented.
+			cursor.x_rot = CLAMP(cursor.x_rot + Math_PI / 12.0, -1.57, 1.57);
 			view_type = VIEW_TYPE_USER;
 			_update_name();
 		}