Documentation / scene / HairStrandDirection

Type Alias: HairStrandDirection

HairStrandDirection = "tangent" | "binormal"

Defined in: libs/scene/src/material/hair.ts:20

Which TBN axis runs along the hair strands of the card atlas.

Most hair-card atlases lay strands out along the V axis of the UV, which maps to the binormal; use 'tangent' when strands run along U instead.