Ornatrix Maya 5.1.8 speeds up strand-shape editing with direct vertex access and adds a few workflow conveniences, alongside a round of stability and correctness fixes across guides, grooms, and caching.

New: Optimized strand shape (both specific and surface) diff calculation and delta application by using direct vertex access
New: IsMirrorHalf graft surface implicit property
New: Added recursive groom dialog search via shared Qt dialog
New: Tooltips for some parameters without a description
New: Rotate operator: Twist amount depends on strand point count
Fixed: Error when loading some groom files
Fixed: A rare case where loading a groom file could leave guides in a corrupt state
Fixed: Push Away from Surface prefers distribution character mesh when nothing else is provided
Fixed: Strands snap and stretch after Rotate + Comb/CP modifications
Fixed: Hair from Guides operator not propagating the character mesh from input guides to the generated hair
Fixed: Mesh flip normals flag not copied during cloning
Fixed: Groomer RescaleValue failing to store scaled GuidesDelta values
Fixed: GraftManager now gracefully discards and recreates incompatible or corrupt cache files instead of throwing
Fixed: Assertion crash when rescaling empty array parameters
Fixed: Crash when moving an Edit Guides control point if the distribution mesh is missing
Fixed: Guide shape selection is no longer lost when hiding guides
Fixed: Animation Cache "Record Animation" button now updates immediately after recording
Fixed: Hair could end up with varying point counts per strand after editing guides