Bug URP "Lit" sample is missing all shaders in WebGL build

I'm having an issue under WebGL when I build and run the "Lit" sample which comes with the URP package samples. None of the models appear at all, unless I turn "receive shadows" off on the materials used.

This is under version 2021.2.4f1, but also tested and not working under 2021.2.3f1. URP is 12.1.1

Procedure: create a new Universal Render Pipeline project, import the URP samples, switch to the "Lit" scene, add that to the scenes in build as the first scene, switch to WebGL in the build options, Build and Run.

In the Chrome debug console I'm getting: GL_INVALID_OPERATION: Mismatch between texture format and sampler type (signed/unsigned/float/shadow).

If I then switch back to the sample scene that the URP project starts with, and run that under WebGL, everything there has also disappeared (it's fine before I import the Lit sample).

It seems like the Lit sample is perhaps changing something in the project settings, but I don't know what. Any ideas how to resolve this? I'm not familiar enough with URP/shaders to understand what's going on here.

 

I can confirm I've been having the exact same issue and was just working on reproducing it in a minimal project. So far, I found that all objects with shadow-receiving materials disappear when there is no light that hits a shadow-receiving object on camera, specifically with baked GI. As soon as at least one such is in view, all objects immediately reappear. In my project, that happens with any lighting mode, though in the attempt at a repro that I made, it somehow only happens in Shadowmask mode, with Mixed lights. Similarly, I encountered the issue in 2021.2.3f1 and 2021.2.4f1.

 

I can confirm that this also happens with the URP template project from Unity Hub. When I build for WebGL, all I see is the paint bucket that doesn't use the Lit shader. I also got the same error like MGretton in the Chrome debug console. If I try to include the Lit shader in the build, Unity say's it has to many shader variants. I tried to add it to the Preloaded Shaders with a Shader Variants file, but that doesn't work either. Seems to me that the Lit shader is broken for WebGL in Unity 2021.2.4. Didn't test in 2021.2.3

 

Oh, I forgot to mention, it's not just the default "Universal Render Pipeline/Lit" shader that has the problem, but any Shader Graph Lit shader that can receive shadows is also affected from what I could see.

 

Seems to be still an issue in 2021.2.5f1 as well

 

same here
I tried to add the shader to "always included" but then i get this error:

Code (JavaScript):

1. Universal Render Pipeline/Lit has too many Shader variants(77309411328).To resolve this, go to Project Settings > Graphics and remove this Shader from the Always Included Shaders list.For more explicit control over how Unity includes specific Shader variants in a build, use a ShaderVariantCollection.

 

is a bug report open for this?

 

I'm not sure how that's done?

 

How do I submit a bug report? – Unity

 

The URP documentation's FAQ has information about how to report bugs in URP. (I also suspect I suffer from this problem, by the way, using 2021.2.5f1, but maybe you're in a better position to report it than me.)

 

Having the exact same issue. Kinda thing I would have thought would have been caught in the most basic of unit tests. But such is life. I have reported a bug for it also.

 

Same problem here, using 2021.2.5f1.

 

Case 1386080. Don't have a way to link to it directly.

 

@blockimperium did you create the issue at https://issuetracker.unity3d.com/ ?
I'd like to upvote it, but couldn't find it in the issues created during the last few days

This is a major issue for us as well, preventing us from upgrading to 2021.2.

€: WebGl seems to work only in 2021.2.1f, the issue is present in all other versions

 

Nah. It was created in the Editor and that doesn't appear to be something easily tracked from issuetracker. Will keep that in mind next time.

 

Having the same issue only with webgl 2.0 build tested my project with an android build and everything worked fined and displayed correctly

 

Same issue here on webgl Build. Just had it on 2021.5 when it was working fine on 2021.2

 

If you used a valid email that you can check when reporting, they send an email with a FogBugz tracker link.

I sent one in from the editor with a very simple test scene for this issue (#1387161).

 

Cross posting
https://forum.unity.com/threads/2021-2-7f1-urp-shaders-do-not-work-in-build.1216224/#post-7759986

And bug
https://fogbugz.unity3d.com/default.asp?1390534_2i08u9h536ljnmre

 

Thank you for creating bug report. 2021.2.7f version also have same problem.

As in example picture. How ever I would like to add something to it. If you use Universal rendering line Lit shader, but on material disable recieve shadows, it will render. Visible objects on the side have same shader, but have recieve shadows option removed on material options.

 

Can confirm on 2021.2.7f1, setting the Receive Shadows toggle to false on the material before building makes the materials appear. I also tried a script that sets the toggle to false during runtime on Start, but that didn't work.

It also seems that the Terrain Shader has the same issue.

 

FYI a fix is out in last beta 2022.1b : https://unity3d.com/fr/beta/2022.1b
Bug ID doesn't match so I can't tell for your case, but in mine it works again.
The one for 2021 should be coming soon, I guess...

I agree, it's a mess.

 

https://unity3d.com/de/unity/whats-new/2021.2.8 Patchnotes seem to say that it's fixed in 2021.2.8 now. I'm testing it right now.

Edit: The issue is indeed fixed now.

 

I'm in 2021.2.16f1 and I'm seeing this happen with the built-in render pipeline.

 

Unity 2021.2.18f1 and I do not have the Universal Render Pipeline > Lit, I have others like SimpleLit, Unlit, etc

I found that I have the Lit in other scenes, but in the scene i need the Lit then I do not have it as an option, what?

edit: well.. I added the HDRP to my project, then i clicked all FIX buttons, then I removed the HDRP, reinstalled the RUP 12 and then returned to the RUP scene and the shader was there!

Now I have the Lit shader!

 

2021.3 seems met the problem.................

 

For anyone experiencing this issue, I got mine to work by simply disabling 'Receive Shadows' in 'Surface Options'. I do not know what in my project this will affect for now but at least it works for now.

 

Going to Edit > Rendering > Generate Shader Includes
Solved the issue for me, hope that it works for you too.

 

Didn't fix it for me...

 

Unity 2021.3.5f1. I get that problem even with SRP, so I don't have Edit/Rendering panel

 

I have same problem, webgl with light is ok on pc, but failed with android device. After I uncheck Strip Unused Variants , this problem was solved , even though still get the `creation shader failed ` message.

 

In my environment, even after unchecking the strip, I could not display the Lit material on some Android models.
Also, Unlit seems to be able to display them.

My Unity version is 2022.2.15.