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Scene drawing breaks when a scenes are unloaded

See original GitHub issue

Summary:

Drawing of the scene handles, texts, etc. breaks when a scene was added to the hierarchy additively and is then unloaded.

Steps to reproduce:

1. Create a new scene, add a LDtk asset to it.

Unity_2021-07-09_14-30-04

2. Create a second scene, add it to the hierarchy additively.

(e.g. by dragging it under the current scene) The drawing still works.

Unity_2021-07-09_14-32-07

3. Unload the second scene.

(right click -> unload scene) Drawing breaks, exceptions are logged to the console.

Unity_2021-07-09_14-32-15

Unity_2021-07-09_14-30-31

Stuff that might help:

Exception that is logged to the console:

ArgumentException: The scene is not loaded.
UnityEngine.SceneManagement.Scene.GetRootGameObjects (System.Collections.Generic.List`1[T] rootGameObjects) (at <ef667cdc82bf4a4e911d1ddea9ff581d>:0)
UnityEngine.SceneManagement.Scene.GetRootGameObjects () (at <ef667cdc82bf4a4e911d1ddea9ff581d>:0)
LDtkUnity.Editor.LDtkFindInScenes.FindInScene[T] (UnityEngine.SceneManagement.Scene scene) (at Library/PackageCache/com.cammin.ldtkunity@2.1.2/Editor/CustomEditor/SceneDrawer/LDtkFindInScenes.cs:37)
LDtkUnity.Editor.LDtkFindInScenes.FindInAllScenes[T] () (at Library/PackageCache/com.cammin.ldtkunity@2.1.2/Editor/CustomEditor/SceneDrawer/LDtkFindInScenes.cs:24)
LDtkUnity.Editor.LDtkSceneDrawer.DrawEntityDrawers () (at Library/PackageCache/com.cammin.ldtkunity@2.1.2/Editor/CustomEditor/SceneDrawer/LDtkSceneDrawer.cs:44)
LDtkUnity.Editor.LDtkSceneDrawer.CustomOnSceneGUI (UnityEditor.SceneView view) (at Library/PackageCache/com.cammin.ldtkunity@2.1.2/Editor/CustomEditor/SceneDrawer/LDtkSceneDrawer.cs:19)
UnityEditor.SceneView.CallOnSceneGUI () (at <015079d9a4ea4f97b4381e694d2310c1>:0)
UnityEditor.SceneView.HandleSelectionAndOnSceneGUI () (at <015079d9a4ea4f97b4381e694d2310c1>:0)
UnityEditor.SceneView.OnGUI () (at <015079d9a4ea4f97b4381e694d2310c1>:0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at <015079d9a4ea4f97b4381e694d2310c1>:0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at <015079d9a4ea4f97b4381e694d2310c1>:0)
UnityEditor.DockArea.OldOnGUI () (at <015079d9a4ea4f97b4381e694d2310c1>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUIRaw (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus, System.Boolean verifyBounds) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.EventDispatchUtilities.PropagateToIMGUIContainer (UnityEngine.UIElements.VisualElement root, UnityEngine.UIElements.EventBase evt) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.EventDispatchUtilities.PropagateToIMGUIContainer (UnityEngine.UIElements.VisualElement root, UnityEngine.UIElements.EventBase evt) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToIMGUIContainer (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.SendEventToTarget (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.MouseEventDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel iPanel) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <1fd6bc3af931450b977286a218b046fb>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <6ddf8eac3856492ab1b8cf42618915cc>:0)

Issue Analytics

State:
Created 2 years ago
Comments:6 (4 by maintainers)

Top GitHub Comments

1reaction

Cammincommented, Jul 16, 2021

The 2.1.4 update is now up which has a few bug fixes and better text contrast behind certain colours 👍 Feel free to post more issues if you have any 🙂

1reaction

Cammincommented, Jul 14, 2021

I got this fixed, it will be coming in 2.1.4 which should be coming soon-ish. Again thanks for the repro steps. I actually didn’t know that a scene could be manually unloaded in the editor instead of removing them. (Learned something new today!) I’ll follow up here and close the issue once the update is out 🙂

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