Hello guys
I have a problem for months now with groom asset in unreal. When my groom is in level, any levels (even calibrated one, good lighting value, etc..) my groom reflects the whole environment.
Im working in lumen, lumen reflection and im wondering if it’s not related, but i just cant find the reason.
The only thing that make me think it’s the lighting/lumen is because the groom look fine by itself.
(sorry for the bad english, not my first language)
What does it look like if you disable Screen Traces under Lumen GI and Refl? You can also try to adjust r.HairStrands.SkyLighting.IntegrationType.
that mirror groom is usually strand specular way too high or missing roughness.
in Groom material set HairShadingModel, drop Specular to 0.1-0.3 and add roughness 0.3-0.6, and make sure Lumen is not tracing groom as opaque: in groom asset disable Cast Shadow toggle or set Shadow Cache Invalidation to groom only. also try r.HairStrands.ReflectionMethod 1 to force Lumen reflection for hair.
and if you imported with low lightmap, rebuild reflection captures — groom without captures will sample sky.