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By Design

By Design in 2023.2.X

Votes

1

Found in

2022.2.9f1

2023.1.0b4

2023.2.0a4

Issue ID

UUM-28768

Regression

Yes

The "Invalid subscript 'positionOS'" error appears when using the URP package shader libraries

Universal RP

-

Steps to reproduce:
1. Open the attached project “ShaderError“
2. Select the “Assets/LightShaft/Shaders/LightShaft.shader“ shader
3. In the Inspector window observe the Errors list

Expected result: No errors are displayed
Actual result: The “invalid subscript ‘positionOS'“ error is displayed

Reproducible with: 2022.2.0a16, 2022.2.9f1, 2023.1.0b4, 2023.2.0a4
Not reproducible with: 2020.3.43f1, 2021.3.16f1, 2022.1.24f1, 2022.2.0a15

Reproducible on: Windows 10

Note: Recompile the Shader if the “Couldn’t open include file“ error is displayed

  1. Resolution Note:

    The LightShaft.shader depended on some internal shader files from URP that changed. The shader needs to be updated to appropriately declare the the shader vertex description.

    It's also recommended to check the upgrade guide here: https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@16.0/manual/upgrade-guide-2023-1.html#the-universal-renderer-is-now-using-the-rthandle-system

  2. Resolution Note (2023.2.X):

    The LightShaft.shader depended on some internal shader files from URP that changed. The shader needs to be updated to appropriately declare the the shader vertex description.

    It's also recommended to check the upgrade guide here: https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@16.0/manual/upgrade-guide-2023-1.html#the-universal-renderer-is-now-using-the-rthandle-system

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