[URP] UberPost included in build even if no prostprocessing

Hello,

The postprocessing shader is included in the build even if no postprocessing is done in the scene.
Can be tested with the sample URP scene, by removing the post processing volume.
Using unity 2019.3.01f

Thanks!

 

Yes, I have also realized this. Maybe you could make an issue for it as well so that it can be tracked?

 

Ok. Submitted.

 

What is the issue number. Can you link to it?

 

I've also reported this previously https://forum.unity.com/threads/sti...ine-shaders-and-textures-on-ios-build.787823/ haven't had any feedback on my bug reports though.
And it's not only the UberPost shader, there are also a bunch of built in textures related to post processing effects (like film grain etc) that are included in the build even though there's no post processing.

 

I have the same issue. There are also a lot of FilmGrain texture that take up space in the build.
All that in a fresh 2019.3 project without any scenes or other files.

 

Still looking for the issue number

 

The bug I reported on this in October 2019 was closed in fogbugz when I checked now, but I can't seen any explanation why. I can't find it in the issue tracker either (though that might be because it's so hard to find things there). Perhaps they couldn't reproduce the problem and never made an issue of the bug report. I've contacted them again asking them to reopen the bug and investigate it as it's clearly still a problem.

 

Also, I see that in my Android build, post process add the dirt lens textures ( even if I removed them from post processing settings ). This texture is 22mb size. 1/3 of my game size.

 

I am also seeing this issue. Unity 2018.4.19f

Edit:
As a workaround I used the Package Manager to uninstall PPv2, and did my build. It works but complicates doing a build.

 

I tought that was normal, and the Uber shader is kinda huge. lols

 

Back on this. They closed the ticket and said that it's normal for the shader to be included in the package and there is nothing they can do.
Could you guys please also submit a ticket ?

 

Any update on this?

The main offenders I'm seeing:
4.6 mb 1.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/UberPost.shader
262.6 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/SMAA/AreaTex.tga
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Thin02.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Thin01.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Medium06.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Medium05.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Medium04.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Medium03.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Medium02.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Medium01.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Large02.png
256.1 kb 0.1% Packages/com.unity.render-pipelines.universal/Textures/FilmGrain/Large01.png
62.5 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/FinalPost.shader
60.0 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/BokehDepthOfField.shader
46.1 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/Bloom.shader
38.7 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/GaussianDepthOfField.shader
37.5 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/SubpixelMorphologicalAntialiasing.shader
37.1 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/LutBuilderHdr.shader
24.1 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/CameraMotionBlur.shader
17.9 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/Particles/ParticlesUnlit.shader
17.8 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/LutBuilderLdr.shader
13.2 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/Utils/CopyDepth.shader
11.5 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/Utils/ScreenSpaceShadows.shader
11.0 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/PaniniProjection.shader
10.0 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/Utils/Blit.shader
8.1 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/Utils/Sampling.shader
7.7 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/PostProcessing/StopNaN.shader
4.5 kb 0.0% Packages/com.unity.render-pipelines.universal/Shaders/Utils/FallbackError.shader

I'm definitely not using a lot of those postprocessing effects listed, I can understand that some are probably needed for dependencies, but this is a bit silly to add several MB to a project just for using URP.

 

Hello, user @grapefrukt made a nice script that strips all of these before build, you can check it out here
https://forum.unity.com/threads/sti...nd-textures-on-ios-build.787823/#post-5770747

 

That's great news @phil_lira . For future reference, when this is added could you add a reply here explaining where this setting can be found so we can all use it?

 

What are the odds of this making it into 2019.4 LTS?

 

Is this in 2019.4 LTS?

How I can strip all post-processing shaders and related assets from Unity builds using URP?

 

With 2020.1 having been released. I'm wondering if we can expect the fix to be ported to 8.x first or will it go through 7.x and then to 8.x?

An empty, simple, WebGL build takes 5MB with Brotli. It would be 20% less without those assets, which is not inconsequential.

Thank you

 

If there is no fix soon, please show us a workaround.

 

Submitted a bug report to get a quick-fix until the post-processing stripping feature is added to URP:
https://issuetracker.unity3d.com/is...e-unused-asset-files-that-can-not-be-stripped

You can vote to get traction.

 

@Elvar_Orn: It's october, still how long will it take?

 

@tildebox
It appears to have been implemented in the repo :
https://github.com/Unity-Technologies/Graphics/pull/1873

But, from the comments, it's low priority and hasn't been reviewed yet.

 

The pull request was approved today, hopefully we see it soon, not sure if that change will get into 7.5.x?

 

The best way to strip the shader, while keeping URP in a package, may be this for now: https://forum.unity.com/threads/str...nd-textures-on-ios-build.787823/#post-5479941

this is how I strip the textures: https://forum.unity.com/threads/str...nd-textures-on-ios-build.787823/#post-6414738

 

Fix got merged in the master branch for URP:
https://github.com/Unity-Technologies/Graphics/pull/1873#commits-pushed-05a4ff9

It's coming soon.

 

So when is this coming? Says in that github link that it has been merged, but there is still no post processing toggle on the URP assets...

 

It's already there. You need Unity 2021.x.

 

How do I now get the FilmGrain textures out of my build?

 

I am on Unity 2020.2 and URP 10.3.1, when will this feature be out?

 

I don't believe they are back-porting any URP features. Just bug fixes or critical features (PS5 support...).

As such, it might never be made available for < URP 11.x (< 2021.x)

 

This seems to contradict the Unity staff comments in this thread saying that it would get backported to URP 7?

 

This takes a lot of space in my WebGl build please fix T_T
1.8 mb of UberPost...
2.5mb of film grain...

 

Been fixed for almost a year now. Might want to update your version of Unity.

 

I'm using Unity 2021.1

 

We are using an older version for a project and found a workaround today to remove the film grain:

1. Create a new PostProcessData object (Assets > Create > Rendering > Universal Render Pipeline > Post-process Data)
2. Switch your inspector to Debug (Right click inspector tab -> Debug)
3. In Debug Mode, you can access the Film Grain Textures
4. You can't remove them, but I replaced all 10 with the same small white square texture
5. Assign your new Post-process Data object to the Forward Renderer (Assets > Settings > ForwardRenderer)

Now it simply loads your small texture once instead of 10 film grain textures. Not perfect, but at least something

 

@Holocafe_Oliver Thanks for the tip!
How about changing this zero?
That seems to remove all textures
Would it work, or create some errors?

 

The 10 textures got recreated immediately for me. Your luck may vary
I also found out that it is enough to inspect the ForwardRenderer object with the regular inspector. There we can access the data of PostProcessData as well and change the textures without having to switch to Debug mode.

 

The best fix i have been using from start was to go to packages in file explorer. Search film grain and delete the content. Atleast, it doesn't come back unless you restart unity. So, I always do this before final build. Save about 2mb, which is huge when targeting mobile.

 

Has anyone found a way to remove the files in the Debugging folder? Example of one is:
Packages/com.unity.render-pipelines.core/Runtime/Debugging/Prefabs/Fonts/PerfectDOSVGA437.ttf
These are included because they're referenced by a file in the Resource folder - Runtime/Debugging/Prefabs/Resources/DebugUICanvas.prefab
Comes to around 200k total - not as big as the textures, but still well worth removing on WebGL.