Question Depth of Field stops working after creating UI camera

I had my project working well rendering depth-of-field with a physical camera. Originally I had just pasted a canvas layer over the camera for UI elements, but this caused issues, so I moved all of my UI into the UI layer, and created a new orthographic camera that renders just that layer. Everything works great, except that depth of field is no longer rendered by the main camera in the scene. All of the other post-processing effects in that global volume, like ambient occlusion still work.

From the attached images, you can see that I've cranked the depth of field effect to a ridiculous level, and it shows in the camera preview.

However, as you can see from the game view, this effect isn't being applied at all.


I tried creating a new global volume just for the UI layer and applying it to the UI camera, but that has no effect on the rendered scene.

What should I be doing differently?

 

HDRP afaik is designed around a single camera setup, I'd recommend to stick with that, multiple cameras can introduce a lot of issues such as the one you mentioned.

 

Oh dear. I was setting things up to use cinemachine to blend between different views in the scene. You'd think you'd want to be able to apply the same volume to multiple cameras in a third-person game setup, which is a common enough scenario for HDRP...

 

I removed the additional cameras, and simply set my UI canvas to render in screenspace - overlay. Lazy, but it works for now.