Brush Shader Errors in Unity 2018.3.x

[dblatner]

Hello together,

in Unity 2018.3.6 (also previous 2018.3.5) the build can not compile with this messages
"Did not find shader kernel 'vert' to compile" and "Input signature parameter SV_VertexID (1-based Entry 0) type must be a scalar uint. at line 64"

I'm running a Mac with latest OS 10.14.3, Unity 2018.3.6f1, Scripting Runtime Setting to .NET 4.x Equivalent and API compatibility level to .NET 4.x

Screenshot:

It is directly related to this issue:

• [2018.3.0b1] Multiple Brush shader errors #19

Affected shaders:

'Brush/Particle/Snow'
'Brush/Visualizer/Dots'
'Brush/Particle/Smoke'
'Brush/Particle/Stars'
'Brush/Particle/Bubbles'
'Brush/Particle/Embers'

[NicolasPerl]

I'm getting the same error using the same Unity version as well as Mac OS version. I deleted and reimported all Poly assets - but no luck. You're not alone.

[julia1981]

Save problem for Android with the same version

[marcokloft]

I hope Google will Update Poly to fix this Problem... have the same

[dubois]

Still no luck reproducing this. Those who are seeing it:

• Does this happen only when you do standalone builds, or do you see it any time the editor is open?
• What editor platform are you using? I see a couple people reported macOS -- is anyone seeing this on Windows too?
• What platform and graphics API are you targetting? Anything besides Android + GLES3?

My setup to try to repro this is:

• Host: Unity 2018.3.5, Windows
• Target: Windows+GLES3, Android+GLES3, Android+GLES2
• Runtime and APIs: all of them

[anokta]

One more thing to double-check, which Poly Toolkit version are you using? Note that, the v1.1.2 release did not include the f8b7420 commit, which addressed the known issues with 2018.3+.

So, it would be good to know if you can still reproduce the issue from the repo head.

[dblatner]

I am using the last official Poly v1.1.2 release.

@anokta : I'll try the head version, thanks for the suggestion.

[dubois]

Another question for those who can reproduce this: what color space are you using? (Player settings -> Other Settings -> Rendering -> Color Space)

[dubois]

Still no luck reproducing.

Host: macOS 10.13.6
Editor: Unity 2018.3.6f1
Target: Android GLES 3
PT: .unitypackage from github

[dblatner]

@dubois : Color space is set to "Gamma". For Android build target the errors are there but the compiler builds an APK nevertheless. For iOS target the errors stop the build.

I built the unitypackage from source and the error messages slightly change, but the issue is still reproducible. Here is the console output:

As the console log shows
"Shader error in 'Brush/Particle/Snow': Input signature parameter SV_VertexID (1-based Entry 0) type must be a scalar uint. at line 64 (on gles)"

it can be just an Shader issue. Other Poly shaders do not produce such an error log.

[dubois]

Good news; I was going to ask you to generate shader code and attach so I could show it to Unity, but while testing those instructions I was able to finally reproduce it locally.

[dubois]

Unity have reproduced the issue and have opened a bug.
Best known workaround for now is to avoid the combination of Unity 2018.3 and GLES 2.0.
In particular, GLES 3.0 does not show the issue.

[yosun]

Why did they add the new shaders?

[yosun]

Setting it to GLES3 seems to work! Thanks @dubois

[dubois]

@yosun : can you clarify who you mean by "they" and which shaders you mean by "new shaders"?