Import the UIToolkit package to Unity ( go Assets > Import Package > Custom Package ).
Create an empty gameObject, call it UI.
Create a second empty gameObject, call it UIToolkit.
Now make the UIToolkit gameObject a child of UI gameObject (drag and drop UIToolkit gameObject on UI gameObject).
In the Project window , navigate to Plugins > UIToolkit. You should see 2 scripts (among other things!), called UI and UIToolkit.
Drag and drop the UI script on the UI gameObject, drag and drop UIToolkit script onto UIToolkit gameObject.
Set the Material on UIToolkit to UIToolkitMaterial .
In the Inspector, create a new layer (Layer > Add Layer), call it UILayer.
Change the layer on UI and UIToolkit to UILayer.
Set the UILayer on the UI gameObject in the Inspector UILayer slot to UILayer.
On the Main Camera, in the Inspector, open the drop-down box under Culling Mask , and un-check the UILayer. The Culling Mask should now display Mixed …
That’s it for the hierarchy setup.
Don’t forget to set the Texture Packer Config Name. (this is the .JSON file that is renamed to .txt from Texture Packer), and make sure you have a 2x textureSheet for Auto Texture Selection For HD, or just leave that box unchecked.
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