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Third Party Issue

Votes

0

Found in

6000.0.47f1

6000.1.12f1

6000.2.0b10

6000.3.0a3

Issue ID

UUM-112741

Regression

No

Crash on IMGUI::GUIWindow::OnGUI when rendering scene view window in play mode in a specific project

-

Reproduction steps:
1. Open the attached project "CrashRepro"
2. Focus scene view window
3. Click on “Main“ and “MainCamera“ in the Hierarchy window
4. Enter Play mode
5. Focus scene view window

Expected result: Scene view window is focused
Actual result: Editor crashes

Reproducible with: 6000.0.47f1, 6000.1.12f1, 6000.2.0b10, 6000.3.0a3

Reproducible on: Windows 11
Not reproducible on: No other environment tested

First few lines of stack trace:

{noformat}0x00007FFC4B04743C (Unity) IMGUI::GUIWindow::OnGUI
0x00007FFC4B045D61 (Unity) IMGUI::EndWindows
0x00007FFC49EB88CB (Unity) GUI_CUSTOM_Internal_EndWindows
0x0000020FA89EFD17 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.GUI:Internal_EndWindows ()
0x0000020FA89EFC4B (Mono JIT Code) UnityEngine.GUI:EndWindows ({noformat}

  1. Resolution Note:

    Issue seems to be stemming from a third party asset's (tk2d) compatibility issues with U6. The crash originates from the tk2dCameraEditor.cs file, specifically PreviewWindowFunc's previewCamera.Render() call.

    The current recommended practice would be to get a temporary render texture using RenderTexture.GetTemporary, set it as the target of the preview camera, render the preview camera and finally use Graphics.DrawTexture to output the render texture to the preview window. We've tested this approach within PreviewWindowFunc and it does not crash the editor.

    For an example on how to do camera previews in Scene View, please take a look at: https://github.com/Unity-Technologies/UnityCsReference/blob/master/Modules/SceneView/CameraOverlay.cs

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