Bug Custom post processing and Camera stacking

Is this a bug or has something changed? (I don't see anything relevant in the upgrade guide).

It seems having 1 camera with a OnPre / OnPostRender postFX script and then another camera on top (with Depth clear), no longer works for built in in 2022 and 2023 and console keeps spamming this:

Is this a bug, or is this setup not supposed to work any more?

 

This is the issuetracker link: https://issuetracker.unity3d.com/is...m-post-effects-and-build-target-is-set-to-ios

I would appreciate votes on this in hopes of getting a fix before the heat death of the universe.

 

Also, I'm not sure why it says it's specific to iOS, I can also recreate the issue on Standalone.

 

If anyone sees this | would appreciate some votes, in hopes this gets fixed before 2022 LTS get deprecated. It has been 7 months since I reported the bug, I'm not really hopeful.

https://issuetracker.unity3d.com/is...m-post-effects-and-build-target-is-set-to-ios

 

I missed the one year anniversary of this bug being reproed, but:

Happy belated birthday issue UUM-22444!

If you too want to wish this bug a happy birthday, visit this link and throw some votes towards its way: https://issuetracker.unity3d.com/is...m-post-effects-and-build-target-is-set-to-ios

 

If a Unity developer passes by, I would be interested to know if restructuring the post effect stack around commandbuffers would likely make camera stacking work.

It is a non trivial amount of work and I don't want to spend the time just to find out that it's still not working properly.

 

...

I got proposed a workaround that doesn't work. I was told to add something that also blits to null in the stacked camera, but now the bottom camera doesn't show in the final image.

 

I'm fully open to suggestions at this point.

I have one camera with an OnPreRender and OnPostRender that does a bunch of blits and then a blit to null.

Then I have a camera that renders on top that has some of our own GUI elements.

If I attempt to rework this, what method would work?

I'm using built-in and have used this method since Unity 4, and it stopped working in 2022+, and I'm not sure what approach is supposed to work in modern Unity.