Strange Hair Error in 4.11 with black dots showing where hair is close to mesh

Strange Hair Error in 4.11 with black dots showing where the hair is close to the mesh. The error is stronger when a point light is in the scene but also appears with spot lights. The character mesh below the hair uses a skin material with sub surfaces scattering and tessellation.

I’ve seen this too.

Hi Cronos3K,

Would you be willing to share a sample project that reproduces this in 4.12? I’m not able to get the same results with any hair/skin shader combinations, which is what I’ve seen this with before. The one project I had this with before was overly complex and I could not track down or reproduce the issue in a new project.

Thank you!

Tim