Support for Screen Space - Camera

[ionsharp]

I wrote a couple comments previously on another issue about world space UI, but I missed couple things, which I'd like to clarify. I am new to Unity so I didn't realize Screen Space - Camera is exactly the same as Screen Space - Overlay when a RenderCamera isn't specified. I didn't specify one so I assumed this effect worked well with it. Unfortunately, it doesn't. Screen Space - Camera allows for rendering emissive materials on UI elements and showing models in UI: This is not possible if a RenderCamera isn't specified; however, if it is specified, the blur effect will not work. This suggests SuperBlur only supports Screen Space - Overlay.