Description

Regression in testing
This occurs with hardware and software ray tracing, as well as moveable and static lights
This occurs regardless of anti aliasing.
This was tested with DX12

Steps to Reproduce
  1. Create and open a blank project
  2. Create and open a blank map
  3. Create a Thin Translucent material (gray plugged into base color and the transmittance color, and an Opacity of 0.5)
  4. Place a two cubes in the map
  5. Apply the Thin Translucent Material to one of the cubes
  6. Add a directional light that points directly through the Thin Translucent cube to the opaque one.
    Actual Result:
    the sides of the thin translucent cube that are parallel to the directional light will have a flickering noise texture
    Expected Result
    The sides of the cube will render with a flat texture.

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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-187371 in the post.

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Unresolved
ComponentUE - Graphics Features
Affects Versions5.15.2
Target Fix5.5
CreatedMay 30, 2023
UpdatedFeb 14, 2024