Hi , i was wondering if anyone has idea about when we are going to have the ability to add custom image effects with the new post processin stack , i already tried to follow the tutorial link at : Writing Custom Effects | Package Manager UI website
but looks like its deprecated at the moment , if anyone has an idea about how to go about it or even about when we are going to have this feature that would be helpful
Going off this thread, it looks like Unity have moved on from PPv2 and are not going to add support for custom effects at any point. Instead theyāre focused on implementing custom effects in the new post-processing stacks in HDRP and LWRP, which will be out potentially around 2019.2. It does unfortunately leave the built-in pipeline somewhat broken for those who still want to use it (myself included). Iām still using the old āPost-Processing Stack v2ā from the asset store (which is technically PPv1) because it basically just works as one combined image effect, meaning you can have old-style custom image effects around it.
So what about HDRP post-processing then? Can we make custom post-processing effects in HDRP yet? I have a post-processing effect I want to do, but I donāt know where to start to even begin creating it in HDRP.
Are there any tutorials, or even the āinfrastructureā to do it yet in HDRP?
No, not currently. The only infrastructure to implement custom effects in HDRP is to completely build your own post-processing system. Not impossible; Catlike coding just put out a great tutorial on creating a custom post-process stack in SRP:
https://catlikecoding.com/unity/tutorials/scriptable-render-pipeline/post-processing/
You could also modify the HDRP stack itself and forcefully inject some custom effects, but that would take a LOT of work and even more time for just figuring out how the internal system works.
As far as official support, as I said in the reply above, the plan is to release it sometime during 2019.2, but thereās no guarantee on that.
Wow that was a fast reply. Thanks.
Well, that sounds like by the time I get a whole new stack/system working, Unity will have official support by then. I think I might just wait until Unity implements official support for it. Iām just starting out really, so itās probably best if I wait.
However, I will check out that tutorial and probably see if I can get somewhere with it. Itās really hard waiting for Unity to develop HDRP, because I really like the renderer. But thereās so little features and support for it right now. 
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