Review Changes by Version
Ver 4.2
Adds Hand and Finger IK, fixes stair and restore behavior, and refactors shared foundations without changing runtime logic.
- Audience
- All developers
- Time
- 3 minutes
- Requires
- Flow Core 4.1 or an earlier version
- Modules
- Flow Core, Flow Character
On this page
Summary
Ver 4.2 expands Flow Character authoring with Hand IK and Finger IK, corrects stair-state and persistence-restore behavior, and refreshes shared foundations while preserving existing runtime logic.
Highlights
Hand and Finger IK
- Added Hand IK for more precise character hand placement against objects, targets, and gameplay-driven poses.
- Added Finger IK for fine-grained hand and finger positioning during detailed animation and close-up interactions.
- The new IK workflows support interaction authoring, animation polishing, weapon handling, object touching, item use, and character presentation.
Flow Character stair movement
- Fixed an issue that could incorrectly switch Flow Character to the in-air state while moving up or down stairs.
- Stair-like surfaces now maintain more reliable grounded movement behavior and avoid unwanted locomotion-state changes.
Persistent data restore
- Fixed an issue that could restore scene objects more than once.
- Persistence recovery now restores scene objects more consistently, avoiding duplicate scene references and unexpected object reload behavior caused by this issue.
Internal foundation refactor
- Refactored several foundational systems to improve maintainability and long-term extensibility.
- The refactor was designed to preserve existing runtime behavior.
Compatibility and Upgrade Notes
Existing projects should not need to change their runtime logic solely because of the foundation refactor in Ver 4.2.