[HDRP] Build failed: error X4567: maximum cbuffer exceeded

Hey,
Anyone else getting following error when trying to make a HDRP build?

Code (CSharp):

1. Shader error in 'HDRenderPipeline/Lit': Program 'Frag', error X4567: maximum cbuffer exceeded. target has 14 slots (on d3d11)

Code (CSharp):

1. Compiling Fragment program with DIRLIGHTMAP_COMBINED DYNAMICLIGHTMAP_ON LOD_FADE_CROSSFADE INSTANCING_ON _NORMALMAP _ALPHATEST_ON _DOUBLESIDED_ON _NORMALMAP_TANGENT_SPACE _SURFACE_TYPE_TRANSPARENT _BLENDMODE_ALPHA _BLENDMODE_PRESERVE_SPECULAR_LIGHTING _ENABLE_FOG_ON_TRANSPARENT _MATERIAL_FEATURE_TRANSMISSION USE_CLUSTERED_LIGHTLIST
2. Platform defines: UNITY_ENABLE_REFLECTION_BUFFERS UNITY_USE_DITHER_MASK_FOR_ALPHABLENDED_SHADOWS UNITY_PBS_USE_BRDF1 UNITY_SPECCUBE_BOX_PROJECTION UNITY_SPECCUBE_BLENDING UNITY_ENABLE_DETAIL_NORMALMAP SHADER_API_DESKTOP UNITY_LIGHT_PROBE_PROXY_VOLUME UNITY_LIGHTMAP_RGBM_ENCODIN

Ive been struggling with this for a while now. The error does not appear if I make a fresh project.
I have quite a few external asset store assets included in the project but I'm not sure if they could be related to this in any way. There are half a dozen custom shader graphs included with custom nodes but they are fairly basic too.

I've been trying to build with various settings but each build takes about 30 minutes (it looks like it recompiles all shader variants every time) so testing this is tedious. I'd post a bug but I can't reproduce this in any other project and I can't really upload the whole project with the report.

The error references to d3d11 so I also tried to remove dx11 build target by replacing it with Vulkan and dx12 but still got the same error (dx12 only doesn't seem to be possible since its experimental).

Unity version: 2018.2.0f2
HDRP: 3.0.0. preview (downloaded via Package Manager)
Shader Graph: 3.0.0 preview (downloaded via Package Manager)
Post-processing: 2.0.10 preview

 

I'am using 2018.2.1f1 and the same packages as you, and everything is ok.

 

Thanks @petersx

I finally somehow got it to build by disabling "Enable Depth Prepass With Deferred Rendering" in HDRP asset's Rendering settings. However I'm sure it wasn't just this setting alone. In an empty project enabling that setting builds just fine.

There is something strange with the project I'm working on that causes cbuffers to tip over that hard limit. I'll investigate it some more and file a bug report if I figure out what caused it or if I can reproduce it in a fresh project.

 

I have the same issue! I already had "Enable Depth Prepass With Deferred Rendering" disabled and I can't find anything! Have you found another fix?

 

@GamerRO28 unfortunately no.
I actually have the same error back for some reason. It worked fine all day yesterday. I didn't include anything new to my knowledge and its the same project.

Same project and same error is back. Can't build. Still no idea why it's so random or what's causing it.

 

A bit of an update to this issue.
The error still surfaces rather randomly. Do some work with a scene, add some prefabs and or edit some shader graphs. At some point you can't make a build anymore (error in the first post).

I can't pinpoint what exactly causes it. But I suspect its actually related to shader graph after all because I've found a fairly reliable way to get rid of it at least in my case:
I remove all my custom shader graphs from the project (scenes go pink). Then rebuild the project with only one almost empty debug level and it usually successfully finishes. The weird part is that I can then just revert my graphs and levels back and build again and build is successful again.
It seems like something goes wrong while editing shader graphs and removing them clears / resets *something* internally. And then the same assets work once again.

 

@Tim-C Awesome! Thanks for the fix and reply

 

I got some similar errors, but in my case, it seems even the built in shaders can cause the problem.

I tried to convert one mode of my existing project to HDRP. Unity automatically convert all Standard material to HDRP Lit material. It works well in editor, but it can't build. I am so sure these material trigger the problem, because i tested it by importing those materials to a new created project.

 

Its back!

 

Relief that I'm not the only one getting this error(with urp), though its terrible to not be able to build. Exact same error, reported as IN-24251 though it appears no one has looked at it yet.

 

Same here. Unity version 2022.2.2f1, cannot build due to this error displaying numerous times. I've never had it previously. URP, not HDRP.

 

Me too, Unity 2022.2.7f1 and URP 14.0.6 (cannot build my game)

 

Have you found any solution?

 

Same here. 2022.2.8f1

 

I've just hit this error after updating to the latest version of DOTS (1.0.0-pre.44) on Editor 2022.2.8f1


Shader error in 'Universal Render Pipeline/Lit': Program 'LitPassFragment', error x4567: maximum cbuffer exceeded. target has 14 slots at line 98 (on d3d11)

 

It seems like it's a shader bug and it should be fixed in the upcoming 2022.2 version: https://discord.com/channels/489222168727519232/1076506881163530322/1077550561974567084

 

Same, also can't build after updating unity to 2022.2.8f1.

 

Just tested this with 2022.2.9f1 and the error still happens.

 

Just tested this with 2022.2.10f1 and the error still happens.

 

I have the same error on Unity 2022.2.9 with entites 1.0.0.pre47

 

Same on:
Unity 2022.2.11f1 Linux(Ubuntu 22.10), URP, with and without Entites 1.0.0.pre47 and Entities Graphics 1.0.0-pre.44

Unity 2023.1.0b7 Linux(Ubuntu 22.10),URP with Entites 1.0.0.pre47 and Entities Graphics 1.0.0-pre.44
Unity 2023.1.0b8 Linux(Ubuntu 22.10),URP with Entites 1.0.0.pre47 and Entities Graphics 1.0.0-pre.44

 

I'm getting this error with 2022.2.12f, URP, Entities, Entities Graphics on macOS

Shader error in 'Universal Render Pipeline/Lit': Program 'LitPassFragment', error X4567: maximum cbuffer exceeded. target has 14 slots at line 98 (on metal)

Any ETA on a fix landing for the 2022.2?

 

Setting rendering path on URP Balanced Renderer, URP High Fidelity Rendererm, URP Performant Renderer to Forward + got rid of the error. But the build still crashes when I launch it.

2022.2.10f1, URP, Entities Graphics, Windows

Correction: It didnt get rid of the error. It built only once and it was not launchable. Any further builds failed...

 

I'm already using Forward+. Still get the error on builds.

 

Guys, did anyone report this bug? It looks like the unity may not know about it. How to call their QA here?
I just don't understand how such a critical bug can exist for so long.

 

I have the same problem and I don't know what to do.

 

It has been fixed (or at least for me) in Unity 2022.2.13

 

Yes! I just updated yesterday to the lastest unity 2022.2.13 and confirm it's fixed.

 

I can confirm this too

 

Same problem here trying to build with URP + Entities/EntitiesGraphics on 2022.2.12
Going to install 2022.2.13 and try..

 

I installed 2022.2.13 and it worked for me. Thanks for the fix!

 

2022.2.13 fixed this for me.

 

2022.2.13 fixed it in Linux as well