Extream glow effect on MetaHuman Hair using tight DOF

Hi everyone,

I’m encountering a visual artifact issue with MetaHuman hair when using a tight depth of field. Specifically, I notice a glow or halo effect around the edges of the hair (mostly the beard), which becomes quite pronounced and distracting.

Details:
Engine Version: Unreal Engine 5.3
MetaHuman Version: 2.03 Highest Qualtiy download setting.

Issue Description:
When applying a tight depth of field to my scene, the edges of the MetaHuman’s hair display a glow or halo effect. This artifact is particularly visible around finer hair strands and is affecting the visual quality of my renders.

Steps to Reproduce:

  1. Place a MetaHuman in a scene.
  2. Apply a tight depth of field using the camera settings:
  3. Observe the hair edges, especially around the finer strands.

What I’ve Tried:
Adjusting depth of field settings - Less DOF dose reduce the effect. However I do like the shallower DOF look for artistic reasions.
Changing anti-aliasing settings - I tried to also follow this tutorial by William Faucher. I would apply a concle command called r.TemporalAA.Upsampling and setting it to 0 (off). Unfortunaly this did not work for me.

Solution at time 2:55

My focus plane is position at the face.

Refrences of shallow DOF look:
DOF ref


Has anyone else encountered this issue or does anyone have suggestions for resolving this visual artifact? Any help or guidance would be greatly appreciated!

Thanks in advance!

1 Like

have you found a solution? i am having the same problem…

have you tried r.HairStrands.DOFDepth 0?

same issue here. Seems like it’s caused in part by the rim light. But I have found no concrete solutions.

This has been an issue ever since hair strand rendering was introduced years ago. There is no real solution just workarounds.