Unreal Engine Issues

UE-216022

Shader compilation errors when packaging for iOS after disabling force full precision

Shader compilation errors when packaging for iOS after disabling force full precision

Description

User report:
I want to run iOS shaders with half precision floats as I do on Android. If I disable Force 32 bits Floating Point Precision, there are unfortunately a bunch of shader compilation errors. I’ve tested on vanilla UE5.3.2 just to be sure there wasn't a conflict with our source code and the problem is exactly the same.

Steps to Reproduce
  • Run UE5.3.2.
  • Disable Force 32 bits Floating Point Precision in Project settings.
  • Restart.
  • Load FPS test level.
  • Run iOS package creation in Development mode.

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Fixed
ComponentUE - Platform - Mobile
Affects Versions5.3
Target Fix5.5
Fix Commit35834119
CreatedMay 29, 2024
ResolvedAug 27, 2024
UpdatedSep 11, 2024
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