Unreal Engine Issues

UE-305427

DistanceToNearestSurface node does not work when r.DistanceFieldAO is disabled

DistanceToNearestSurface node does not work when r.DistanceFieldAO is disabled

EPS
Description

The problem seems to be that the bUsesGlobalDistanceField flag in the ShouldPrepareGlobalDistanceField() function checks for usage on the material, but it doesn't seem to take effect.
The material uses the DistanceToNearestSurface node as shown below.
[Image Removed]

r.DistanceFieldAO 1
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r.DistanceFieldAO 0
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Steps to Reproduce
  1. Open the attached sample project
    [Link Removed]This project contains a material that uses the DistanceToNearestSurface node.
  2. Execute the r.DistanceFieldAO 0 command

Results:
The DistanceToNearestSurface node does not work.

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Duplicate
ComponentUE - Rendering Architecture - Materials
Affects Versions5.6
CreatedJul 16, 2025
ResolvedJul 28, 2025
UpdatedAug 12, 2025
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