Unreal Engine Issues

UE-105061

If use with mesh particles or use with niagara mesh particles is checked in the Usage flag of the material and the material domain is set to volume, compile error will occur.

If use with mesh particles or use with niagara mesh particles is checked in the Usage flag of the material and the material domain is set to volume, compile error will occur.

UDN
Description

[SM5] /Engine/Private/VolumetricCloud.usf(118,33-53): error X3018: invalid subscript 'VertexId'
 
This is happening in VolumetricCloud.usf, but it seems that I can avoid the error by adding the following line. # // Force inclusion of VertexId FVertexFactoryInput even if not otherwise required

  1. #define PASS_NEEDS_VERTEX_ID 1
Steps to Reproduce

Check Use With Mesh Particles or Use with Niagara Mesh Particles

Material Domain set to Volume

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Fixed
ComponentUE - Niagara
Affects Versions4.26.1
Target Fix4.27
Fix Commit16590006
Main Commit16590045
Release Commit16590006
CreatedJan 5, 2021
ResolvedJun 8, 2021
UpdatedDec 1, 2022
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