Description

When using the BumpOffset node, it will produce incorrect resultsi if the Texture Coordinate Index is not 0.

Found in 4.20 CL# 4369336. 4.21 CL# 4613538, 4.22 CL# 4751672

Steps to Reproduce
  1. Open the Editor
  2. Import the attached FBX
  3. Create a material like the attached image but set the TextureCoordinate Nodes Coordinate Index to 1
  4. Apply the material to the imported mesh

Results:
It appears the BumpOffset node is still partially relying on Coordinate Index 0

Expected:

Incorrect Behavior would not occur when the Coordinate index is above 0

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There's no existing public thread on this issue, so head over toAnswerHub just mention UE-68748 in the post.

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Unresolved
ComponentRendering
Affects Versions4.204.214.22
Target Fix4.23
CreatedJan 18, 2019
UpdatedFeb 14, 2019