Description

Refraction of Ray Traced Translucency in Path Trace View is Incorrect.

Found in 4.22 CL# 5660361 and 4.23 CL# 5779284

Steps to Reproduce
  1. Open the Editor in DX12
  2. Enable Ray Tracing in the project settings
  3. Set r.RayTracing.Translucency to 1
  4. Create a translucent material with refraction
  5. Place a Sphere into the scene with the created material applied to it
  6. Set the view to Path Trace

Results:
The refraction is not seen in Path Trace

Expected:
The refraction would appear correctly in the Path Trace view mode

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-72481 in the post.

5
Login to Vote

Non-Issue
ComponentUE - Graphics Features - Lumen
Affects Versions4.224.23
Target Fix4.23
CreatedApr 8, 2019
ResolvedApr 10, 2019
UpdatedSep 19, 2021