Game view fails to work after wierd casting error.

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1

Hello Everyone.

I was busy Creating an editor script when I got a seemingly unrelated error message:

“pptr cast failed when dereferencing
Casting from DefaultAsset to Shader!”.

Since this error message the game view is completely blanked out with a default blue color making it impossible to test the game.

  • I removed the script that I was working on when the error occurred but nothing changed.
  • I have a camera in the scene that is rendering to the default render texture. It’s preview shows all the game objects as expected.
  • I have set the camera’s background to white but the game view still stays the default blue.
  • The camera’s culling mask is set to “Everything”.
  • The camera’s tag is “MainCamera”.
  • I have restarted Unity and the computer multiple times.

This error seems to be a known issue with Unity but I cant find any reports of it affecting the editor. The error may just be a coincidence but that seems unlikely.

How can I fix the game view? Am I missing something obvious?

Any help would be greatly appreciated. :slight_smile:

Thanks - Ross

2

Well. That was silly.

Basically The script I was writing created a Camera in a GameObject with hideFlags.HideInHierachy enabled. When i closed the window it was supposed to delete the gameObject but the first time I closed it I used Destroy() instead of destroyImmediate().

My main camera had a depth of -1 which meant that the hidden camera took priority. The net result was a phantom camera that took priority over every camera below 0 depth. Since the near clipping plane of the phantom camera was too far (for my pseudo-2D game) It left me with a lovely blue Game view.