Description

Whenever you have an actor on top of a reflective surface while its moving the reflection will display inaccurately as if the object is moving away or toward the reflective surface.

Found in 4.19 CL# 4033788. Reproduced in 4.18 CL# 3832480 and 4.20 Main CL# 4088075

Steps to Reproduce
  1. Open the editor
  2. Create an actor blueprint
  3. Add a skeletal mesh component and select the "SK_Mannequin"
  4. Add a static mesh component and select the basic cylinder
  5. Select a reflective material for the cylinder
  6. Move the cylinder so that the mannequin is standing on the top
  7. Add a rotating movement component to the actor
  8. Place the actor into the level
  9. Place a planar reflection on top of the cylinder
  10. Simulate in the editor

Results:
As the actor rotates the planer reflection appears to move up and down as if the mannequin is moving which is an inaccurate reflection.

Expected:
The reflection would be accurate as it rotates

 

Steps for project:

  1. Open attached project
  2. Simulate and observe the two actors' reflections

Results:
As the actor rotates the planer reflection appears to move up and down as if the mannequin is moving which is an inaccurate reflection.

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Won't Fix
ComponentUE - Graphics Features
Affects Versions4.184.194.20
CreatedMay 24, 2018
ResolvedAug 18, 2021
UpdatedAug 18, 2021