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I am using Unity 2018.3 with HDRP 4.9, and Post Processing 2.1.3.

I would like to apply post processing effects (i.e bloom) to the UI only.

I tried the 2 camera approach, but still can't get it working correctly.

I have a post processing volume that is global, and also one that is global but for the UI. Not sure if this is correct. Basically I don't want the first processing volume to apply to the UI.

I can apply post processing if I ignore all this second camera stuff and set the canvas to screen space camera. I then get the effects like bloom applied to the UI. However, I want to have different post processing for the UI, the global bloom is too much.

First image is the UI Camera.

enter image description here

Second image is the main camera.

enter image description here

Third image is the Canvas for the UI.

enter image description here

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  • \$\begingroup\$ Your setup displayed in the images seems reasonable, though I haven't done this myself. You say "I tried the 2 camera approach, but still can't get it working correctly" - what exact problem did you run into? \$\endgroup\$ Commented Feb 20, 2019 at 18:09
  • \$\begingroup\$ The global processing was still getting applied to the second camera, even with the correct layers set. Not sure if it's something I am missing, or some issue with the PP stack, though I thought v2 was pretty stable. \$\endgroup\$ Commented Feb 21, 2019 at 10:22

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