Unreal Engine Issues

UE-31350

Light Shaft Occlusion causes exponential height fog to render incorrectly in stereoscopic

Light Shaft Occlusion causes exponential height fog to render incorrectly in stereoscopic

Developer Notes

This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.

UDN
Description

Enabling Light Shaft Occlusion causes exponential height fog to render incorrectly at certain viewing angles in stereoscopic.
This does not reproduce once light shaft occlusion is turned off on the directional light.

Found on:
4.11.2 Binary CL-2990856
//UE4/Main CL-2991400

Steps to Reproduce
  1. Open UE4Editor.exe QAGAME
  2. In the default level, delete the atmospheric fog
  3. Add Exponential Height Fog (using placement mode)
  4. Select the Light Source in the scene and enable "Light Shaft Occlusion"
  5. Play in VR-Preview
  6. Spin around 360 degrees

Result: At certain angles the eyes render the fog as a different color causing a noticeable inconsistency in the eyes. (Occluding the light shaft from the directional light in one but not the other?)

Community References

Would like light shaft occlusion to work in VR

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Won't Fix
ComponentUE - Platform - XR
Affects Versions4.12, 4.13
CreatedMay 26, 2016
ResolvedApr 3, 2017
UpdatedSep 16, 2019