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The IglooPlayer system requires two custom Input Axes, a custom tag, and 2 custom layers to be defined in the Unity project settings. These can be appended to your existing settings automatically by selecting Igloo > Apply InputManager Settings from the Unity Editor.
Universal Rendering Pipeline (Toolkit Version 1.0 - 1.21)
If using URP a custom scripting define IGLOO_URP must be added to your player settings.
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Universal Rendering Pipeline (Toolkit Version 1.30+)
When using URP in the later toolkit version, it is not necessary to add scripting defines. This is handled automatically by the Igloo Assembly Reference within the Toolkit’s root folder. More information regarding this file, and what it means for extending the Igloo Toolkit can be found HERE.
You will, however, need to add a render feature to any renderers you intend to use in your project.
Find the renderer you intend to use, in my case it’s a default forward renderer
Select the Add Render Feature button, and click Blit Material Feature
Leave the Name as NewBlitMaterialFeature as it helps our script locate it.
Set the values within the feature to the following:
Material - URPCameraBlend
Material Pass Index - 0
Render Event - After Rendering
Now this is complete, when you use the Warp & Blend and Window features, the Universal Render Pipeline will successfully create an external window using the Igloo Warper warps grids.