HDRP new post processing extending

How can I write my own effects for new post processing in HDRP?

 

Yeah, I'm interested too. I had nice effects for PPV2 (glitches, some other effects for immersion), but now they just don't work.

 

Thank you, I was waiting for this answer

 

Future version as in approx ? weeks ? months ? I'm using post-processing for game data effects (cloud systems, fog of war, etc...). Between this, shader graph instancing not taking in account material property blocks parameters, not being able to write custom vertex nodes and custom nodes not working anymore anyway, I'm a little bit stuck.
Refraction on older cards might work now, but it's one step forward, two steps backward...

 

@SebLagarde

> This will come in a future version, current package don't allow that.

There's several projects on Github which seem to show custom post-processing FX - including one by Keijiro.

Maybe it's more a case of "it's possible but expect breakages and API changes"?

 

It's not about that. Those custom PP effects, including one from Keijiro, work on PPv2 which is extendable by design. This thread is about HDRP 5.3+ which uses PPv3 which doesn't have this functionality (yet) and you can't use PPv2 anymore on 5.3+ HDRP (it does nothing there).

 

PPv3?

Bloody hell. I'd only just come to terms with v2!

 

Wow, are there any major updates to PPv2 to actually change its version to PPv3?

Can't imagine what they did add, cause PPv2 was pretty solid.

 

So - what's the status of post-processing v2? There were major issues with single pass stereo last time I checked making some effects unusable with VR.

 

PPV2 no longer works in HDRP. PPv3 was made specifically for HDRP, to better work with physically correct lighting and other features.

 

Thanks - but I was more enquiring about whether PP v2 is still being actively developed. I'm hoping it's not deprecated so soon after release.

Will v3 be recommended for anything other than HDRP? Is it the future?

(also - how do we try it out? I tried pulling SRP master from Github but I couldn't get it working)

 

You can’t use it outside new HDRP (yet?) it’s integrated inside this pipeline

 

- This only work for Unity 2019.2 so if you gotta have the latest alpha or download it
Download the 5.3.1-preview - 6.0.0-preview package from Github or add the staging repo to your projects manifest and manually type in the version number (This is because adding the staging repo to a manifest in 2019.2)
(any version beyond 6.0.0 doesn't work with the current alpha version you get errors as you did with the master branch)

PPV2 still get updates from time to time but not as much. Don't think it needs any major updates currently. Still works fine for Unity 2017 to the current version and beyond for the default render pipeline as well as the only post processing for LWRP, which uses a limited selection from the set.

 

> Don't think it needs any major updates currently

Can't remember the details but I had to basically give up on having bloom and single pass stereo on at the same time. And in the end I had to give up on bloom entirely as the frame-rate hit using post-processing with Daydream was too much without single-pass.

I might be misremembering some of the details here as this was frantic pre-launch optimisation work but I definitely didn't feel that PPv2 was production ready - at least for mobile VR.

 

Ok, since almost all my shaders use custom nodes (and no, you cannot recreate them with normal nodes), and I make heavy use of custom post processes, my project is not launching in 2019.1b and will never be. Means I can already use the 2019.2a without any guilt or regret.

 

Better everything certainly sounds great.

But can you please make sure that moving from one to the other is an easy process?

In other words, please use the same MonoBehaviours / APIs and the same profiles. I don't care if you run different shaders in the background, or even if the actual C# implementations are completely different - just don't make me assign different components to my cameras (in our case, the one volume we use is a child object of the camera), and don't make my existing profiles obsolete.

I'm currently moving from v1 to v2 and it's a bit of a nightmare because we primarily use PostProcessing for color grading, and the profiles are not only not compatible but there is also no way to go from one to the other without basically doing the whole color grading process manually again (we also change some parts of the color grading from script during gameplay, so LUTs are only of very limited help).

Out main motivation to move from v1 to v2 is (hopefully) better performance and less shader keywords. Currently we have v1 and v2 in the project and that adds a lot of extra shaders, so we would like to get rid of v1 (or return to v1 and get rid of v2).

Aside of being more modern / better maintained, v2 doesn't add anything of value for us (in particular, the whole concept of volume blending is something that we'll never use in this project). I hope performance is actually better in v2 than v1; at least for bloom and color grading.

I'm not sure I fully understand this. So, for VR, PPV3 will be best if we use LW or HD?

So far, it looks like HDRP isn't suitable for VR (it added 5ms per frame in an empty scene on a 980Ti when I tried). For now, we'll stay with legacy but might move to LWRP at some point. Our target platforms are PC, Mac, Linux and PS4; we also support mobile on side projects but for the time being strip everything that adds to build size / costs performance, including post-processing.

 

You will have to redo your post with PPv3 for HDRP, it won't carry over because they are set up differently.

We don't have any info on how LWRP's PPv3 will be so not sure if it will be the same process. Sebastian mentioned that we will be able to use both for LWRP so maybe the same profiles will be compatible between the two.

 

@SebLagarde How about built-in pipeline? Is there any PPv3 for built-in pipeline?

 

@jashan unfortunately too late, as of HDRP 5.3, the volumes are all merged (post + HDRP volume features) and everything looks different anyway, has different options.. HAH! That'll teach you to be a pioneer

 

Oh oh ;-) ... but I'm not using HDRP, anyways. Shiny new stuff is always bad, I'm going all the way with legacy render pipeline until the end of time (rumor is that the end of time is near ;-) ).

 

My reflections from reflection planar probe hiding in play mode, what I do wrong?

 

what is this PPv3 you guys are talking about, I just can't find it anywhere,
I use HDRP 5.10.0 and unity 2019.2

 

@QuadraticForm, quote from this thread

 

To use HDRP post processing:

1) Load up a HDRP 5.10.0 (not sure about other version) project. (If you're importing, make sure to set to Linear, .net 4.0, and create a new HDRP settings, and drag into the slot in the Project Settings -> Graphics)

2) Add a HDRP "Scene Settings":


3) Go to Scene Settings that you just added and click "Add Override" and add whatever Post Processing things you want to use:



Check out all these cool effects:



Just to show it works:




Have fun!

 

Have you thought about renaming post processing specific implementation? For example, HDRP-PP or HDPP rather than just PPV3?

My assumption is that it helps to avoid confusion and sets expectations more clearly.

 

It's called HDRP post process I think.

 

What about PPV3 integration with Cinemachine? Is it something planned in the future? I could not find how to assign different post processing profiles to Cinemachine virtual cameras.

 

There is no longer a PPV3, only LWRP PP and HDRP PP (Just a heads up as they're now wildly different and built in)

They also don't have post process volumes anymore but instead a unified volume so perhaps your project is heading for a mess. Hopefully you'll properly remove PPV2 and use the volume system (PPV2 doesn't work in HDRP).

I also recommend developing on lastes 2019.1 beta which should yield HDRP 5.10+ in package manager.

This should work fine with timeline as-is, but if you're having cinemachine problems, can you be more specific (after correctly ensuring you do not have V2 in the project).

 

I'm ask about it somewhere in cinemachine thread, and this in the roadmap.

 

So basically how they handled it in PPv1? ;-)

I'm not gonna miss post process volumes in my project but I can see how they may have been useful for other projects.

 

No, it still supports volumes. Its just that it uses the same sort of volumes as are also used for scene HDRP settings. This seems to have caused some confusion because some people seem only to be aware of using a single global scene volume, but I think you can still use multiple volumes of this type (although I havent tried).

 

I use one global volume to "set the stage" with pretty much everything added to it, followed by non global ones which only have variations of specific things, like we might adjust just shadow quality indoors or something.

It'd be a shame if everyone just dumbly grunts and stares at the global tickbox and wonders what global means.

 

Ah, cool, makes sense and simplifies things.

 

How about custom post processing? how and when as there are hundreds if not thousands of asset store plugins which need to be upgraded to work with HDRP / LWRP by developers?

 

PPv2 is extendable already (and works with current LWRP + works with HDRP for versions prior to 5.3.0). SRPs have camera and frame callbacks implemented as well, the thing that people still miss is HDRP PP extendability for 5.3.0 and newer HDRP versions and Unity staff has told it's coming.

btw, hows that SSR update coming along? Are you planning to update it to SRPs?

 

I have an honest request as a dump regular 3D Artist.

How do I get 2019.1 to work with HDRP, Shader Graph, and VFX Graph?

Here's my list what I tried so far:

#1 Fresh install with HDRP preview package.
First, I tried the regular HDRP preview project and made the update to the latest 5.13.0 as suggested on the migration doc from Unity because my project that needs to be load in is based on 2018.3+

The HDRP Test scene just vanished after updating to 5.13.0 > many errors > unusable. OK. Uninstall everything.

#2 Fresh install without HDRP, then adding HDRP 5.13.0 through the package manager. Works.
Added VFX graph 5.13.0: works.
Adding Shader Graph 5.7.2: red-red-red. > many errors > unusable. OK. Uninstall everything.

#3 So what is 5.3.0 you're talking about? Is Shader Graph 5.7.2 incompatible with HDRP 5.10+?

I really just want to find out "how" to setup Unity 2019.1 to a usable state for testing these new features and nodes and beauties > like mentioned on the Unity 2019.1 release blog.




PS: Could I open a portal to Narnia if I start to mix Cinemachine 2.3.3 with Entities v0.0.20.302.0.0203 after upgrading Jobs from 0.2.3.4.5a to 0.5.1.2.3f? (Don't kill me - Happy Eastern ;D)

 

Milanis, Shader Graph is added automatically when you install HDRP, you don't need to install it one more time.

 

1. Use Unity Hub to create a new 2019.1 project and choose the HDRP template
2. Add Visual Effects Graph via the package manager.

 

@Milanis like mentioned above, you don't need to separately install Shader Graph as it's a dependency on HDRP package itself. If you want to install it manually, you have to match the version. To do so, just expand the Shader Graph package version list like you did on your screenshot for HDRP (hit "See all versions" link to expand the list), pick the matching version from there and hit update button.

 

Version of HDRP specified by the template is usually out of date, so I usually recommend upgrading that via the package manager after creating template project.

Unity even mention this on the long blog post about 2019.1:

https://blogs.unity3d.com/2019/04/16/introducing-unity-2019-1/#hdrp

 

Me too but the current version is broken for me so I was wary of recommending it.

 

Ok, I think it starts to work. Thank you @id0 @andybak @rizu @elbows !!!

@Unity Devs: For new users, I think it would be helpful to make a little "Starter" Blog post that really mentions things like above.

I also want to explain why I wrote it down here in this thread for Post Processing. I started with a new project and HDRP Template with the little "HDRP Sample scene" (the one with the wall and the light, etc) and wondering why it breaks when I update to 5.13.0 and also installing shader graph - which was another version, I agree that I should have expected things to break. I also knew that post-processing 2.0 is not compatible with the new one.

For me as fresh Unity user (one year now) and also just a regular 3D Artist, I think that I make mistakes during the install/package install/upgrading when just a single yellow mark pops up.

Before upgrading to 5.13:

The sample scene with 5.13.0:



For me, I am confused very quickly then. Why the yellow and red marks. What can I do to make the scene visible again? Sometimes it gets fixed when restarting Unity - I fine with that- But I took me a whole night yesterday to test different package and it ended up in broken states before I even got the chance to have anything usable. I searched through the forums and google for the particular error messages without any luck or just found posts from 2011-2014.

I really try to read every manual page and following recommended workflows all the time. Both at work and free time. For the shader graph part, I overread that shader graph actually "is" part of the SRP now and it was marked "not installed" on the package manager. It's good to know but I really think (as a former Unreal Engine User) that this workflow could be way more effective for new users if they don't get overwhelmed by the love of Unity developers for their version-number festival. At least adding a little note on the shader graph package that the user does not have to install it "if" he already got HDRP installed would help. Same goes for the Post Processing 2.x package.

The little things.

 

Just started some deep dive into ppv3 and physical camera parameters. Great things happens there.

Think it really needed to connect all physical camera parameters to the ppv3 effects ,further proofing these by many realworld comparisons.
Why not connect it further with cinemachine.


Fyi. Here some great real world photography read up.

https://www.davemorrowphotography.com/depth-of-field-photography

 

They are doing all the cinemachine stuff.

 

I was thinking more towards something like HQ Autofocus out of the box....
At the moment i use SuperRaycast, because it does not need coliders and do my own tweening of the deptvalues against multiple raycasts.

 

Thanks for the info, the slightest changes make the biggest differences lol

 

It is really sad for me to hear that. My project relies heavily on custom post processing so I am unable to upgrade to 2019.1 (HDRP 5.x) unelss it has ability to extend post processing. You've had mention that extending of HDRP-PP would be arriving in 2019.2 - is it possible that alpha version available supports that? It is a really annoying to be forced to stay in particular version and can't use of new features.

 

I've had some luck extending the Visual Effects Graph (which has no official support for adding custom nodes) using Keijiro's asmdef trick: https://github.com/keijiro/Vdn8/blo...ra/Unity.VisualEffectGraph.EditorTests.asmdef

I imagine something similar would be possible for post-processing. Even if not - the code is all there in the repo so you can just fork it and add in your own effects that way.