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Won't Fix

Votes

0

Found in

2018.3.0a1

2018.4.0f1

2019.1.0a1

2019.2.0a1

2019.3.0a1

2020.1.0a1

Issue ID

1182452

Regression

Yes

[hlsl2glsl -> HLSLcc][iOS][OpenGLES2]Reduced precision in shader floats on devices that only support OpenGLES2

iOS

-

How to reproduce:
1. Open the attached ShaderPrecision.zip project
2. Open the "MainScene" in the Assets folder
3. Make sure that OpenGLES2 is set in Player Settings-> Graphic API
3. Build for iOS and deploy the Xcode project to the iOS device

Expected: The shader looks the same as in the Editor
Actual: Reduced precision in shader floats (see the attached Actual:Unity2018_4.mov and Expected:Unity5_6.mov videos in the Edit section)

Reproducible with: 2018.3.14f1, 2020.1.0a4

Reproducible with:
iPad 4th generation (iOS 10.3.3)
iPhone 5c (iOS 9.3.2)

Not reproducible with: 2017.4.32f1, 2018.2.21f1

Reggresed in: 2018.3.0a1

  1. Response avatar

    Resolution Note (fix version 2019.3):

    This is due to our move from hlsl2glsl to HLSLcc on GLES2. ATM there seems to be no workaround to the issue.

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