Hair Groom and Water Transparency Sorting Issue at Far Camera Distance

Development Character & Animation
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1

I’m currently working on a cinematic project in Unreal Engine 5.5, and I’ve encountered a strange rendering issue involving groom hair and translucent water materials. However, as the camera moves farther away using a Cinematic Camera, the following issue appears: https://youtu.be/wWlCPWM_sgg

2

Hello @Strong_kh!

From your provided footage, it seems the hair groom transparency is being overwritten by the water body in rendering. In order to fix that, please try the following changes:

  • Use “Translucency Sort Priority” from the groom asset’s details panel, and set it to a value higher than the water body

  • In the Groom component, Increase the “Bounds Scale” in the groom component, which should avoid the hair from being culled when the camera gains distance