HDRP postprocessing + world space canvas = blurred UI

Steps to reproduce:

1. Set up project / scene with hdrp
2. Add scene settings with motion blur and/or depth of field
3. Change canvas rendering to World Space - Camera
4. Use manual settings in depth of field

By doing this, canvas is getting blurred out with post processing along with terrain around. I was looking for a fix, because I need world space canvas in order to display a shader effect from shader graph.

I tried (will edit this):

• I looked for option to exclude layer from post processing in HDRP settings, scene setting and camera settings. There aren't any.
• I made a separate camera for UI only that doesn't postprocess, and set it's depth to be above main camera. It disables post processing for main camera aswell, and I don't want that to happen.
• Every script related workarounds are from old versions of unity that use old camera post-processing scripts, so they doesn't work anymore.

Is there any way to solve this issue, or should I just simply give up on trying make FX in canvas, and just pay someone to do spritesheet animation for that?

Thank you!

Edit: workaround found.

Make a new unlit hdrp shader and change Render Pass to After Postprocessing, save and drag the material with said shader into raw image.

 

@Evangeder

I am having similar issues, trying to show a world-space UI with some transparency in an HDRP scene using Depth of Field. The entire canvas and all of its elements are blurred based on what is behind them. For instance, if an object is closer to the canvas, therefore receiving less DOF blur, the canvas portions in front of that object are clearer than the rest.

I applied your solution, making a shadergraph shader with the Render Pass option changed. This allows me to apply this material to the background canvas and then the other elements are no longer blurred. However, the DOF effects behind the transparent element are also no longer blurred. It has created a clear window into the background area. Did you experience this or is it somewhat different than your situation?

Thanks for helping me get this far, and any other info you have would be appreciated!

 

@whogas

I haven't got issues like those you said. Only UI is transparent, world post-processing is correct.
You can see how it works here:

The effects on UI are made in shadergraph, those are not animated sprites, so it clearly works great on my end

 

And update on this?
What is the intended workflow?
The forced 1 camera workflow from HDRP makes this not very easy

The tone mapping and bloom affecting the Unity UI elements make them hard to read and blurry

 

i think the keyowrd is world space canvas

 

This is clearly an intended behaviour. Players can squint their eyes and/or guess what the UI elements do.

 

Also wondering this. Bump.

 

Had this problem but finally found a solution!
The shadergraphs in this blog post allow for post processing effects to be ignored on the UI elements.

 

The new link to the solution is Fixing World-Space UI with Unity’s HDRP (gamedeveloper.com)

 

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