Lacking Documentation on "Hair Attributes" material node

[anonymous_user_2bba8b13]

Basically other than Root UV I’m not entirely sure what these attributes are.

For example, Length is what? How is it giving me length information? In what form am I getting it so I can use it properly? Is it a UV per stand as total length? Or all strands normalized as length?

I’m shooting around in the dark trying to hit something. Basic documentation would be very appreciated.

[MiitsuOfficial]

Helooo from the future! It’s my great displeasure to inform you that the lack of info is still the status quo at the year of our lord 2025 as well. Toodaloo!

[Charles]

@anonymous_user_2bba8b13

mple, Length is what? How is it giving me length information? In what form am I getting it so I can use it properly? Is it a UV per stand as total length? Or

Woops! I will had some details. The documentation is here but could contain a bit more details as you suggested: Groom Materials in Unreal Engine | Unreal Engine 5.6 Documentation | Epic Developer Community

[Charles]

This will be fixed in 5.7. For the length attribute in particular: “The length of the current curve. Length from the root to the shading point, in cm“

/Charles.