Unreal Engine Issues

UE-35455

FXAA doesn't work if you replace the tonemapper with a material postprocess

FXAA doesn't work if you replace the tonemapper with a material postprocess

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

As reported on UDN.

If using a custom postprocess which replaces the tonemapper, FXAA doesn't work.

Steps to Reproduce
  • Make a simple custom postprocess material which replaces the tonemapper
  • Create a test level
  • Add a postprocess volume with the postprocess material as a blendable
  • Disable temporalAA (e.g. with showflag.temporalAA=0). Notice that antialiasing no longer works
Community References

FXAA without tonemapper

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Won't Fix
ComponentUE - Graphics Features
Affects Versions4.12
CreatedSep 1, 2016
ResolvedMar 26, 2018
UpdatedApr 27, 2018