When using a material with a translucent blend mode, you can not use the lighting modes "Volumetric PerVertex NonDirectional", or "Volumetric PerVertex Directional" and the Tessellation settings "PN Triangles", or "Flat Tesselation" together. Both lighting modes and tessellation can be used separately but print an error when both are used together. The error that is printed is:
Error [SM5] BasePassTessellationShaders.usf(32,3-25): error X3018: invalid subscript 'AmbientLightingVector'
This issue does not appear to be a regression
Versions tested: Issue occurs in all versions tested
4.16.3 - CL: 3561208
4.17.2 - CL: 3658906
4.18P2 - CL: 3660543
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Head over to the existing Questions & Answers thread and let us know what's up.
7 |
Component | UE - Graphics Features |
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Affects Versions | 4.16.3, 4.17.2, 4.18 |
Target Fix | 4.24 |
Created | Oct 3, 2017 |
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Resolved | Aug 7, 2019 |
Updated | Oct 28, 2019 |