OtakuSolutions API Reference

Overview

The Ani Utils tab is a collection of assist tools used when animating.
It is often kept side by side with the Picker.

Prerequisites

Build complete, Figure Mode OFF
Rigging Info generation checked during Build (Ep.1)

Feature Breakdown

Local / World — Which Space to Move In

Mode	Meaning
Local	Rotate/move relative to the parent (shoulder, wrist, etc.)
World	Relative to the entire scene (world)
- To bend an arm relative to the torso, use Local; to rotate it toward a direction in space, use World — each team has its own habits per part.

Selection · Key · Reset

Button	What It Does
Selection	Select an entire part group (Left Arm, Spine, etc.) at once
Key	Set a keyframe on selected objects
Reset All	Return the entire rig to the default pose
Reset Selection	Return only selected items to default pose (Ep.14)
- When custom controllers are registered in Rigging Info in Ep.13, they are included in Reset All as well.

Mirror Pose — Copy Left/Right Pose

Create a pose on one side (arm or leg).
Copy (select direction: Left → Right, etc.).
Mirror or Flip Copy — pastes the mirrored pose onto the opposite side.
For custom parts like twintails, mirroring works properly only after registering Mirror Factor in Ep.13.

Slide Key · Free Key

Slide Key — slide key timing and values (assists Max timeline).
Free Key — unlock only specific axes for keying (to match team workflow).

Scale

Keys the scale of selected controllers — connects to Squash & Stretch animation.
→ If skin tears, check whether the bone has Stretch OFF from Ep.7.

Range · Play

Range — specify a playback range.
Play — preview that range only.

Pose · Posture Copy

Pose — save and paste the current frame's pose.
Posture — Biped Posture format (familiar to Max Biped users).

Transform Snap · Bake

Snap — match position/rotation to another controller or object.
Bake — bake constraint results into keys and transforms — may be needed when exporting to a game engine.

Prop Snap — Attaching Weapons / Props

Quickly align a Prop (weapon) controller to the hand or Prop bone position.
Useful for setting an equip pose without IK.

Recommended Workflow (Example)

Select Spine / Arm via Picker
  → Pose in Local space
  → Key
  → Mirror Copy to opposite side
  → Check range with Play
  → Snap weapon with Prop Snap

Notes

Reset All reverts registered custom controllers as well — confirm intent.
Mixing Local and World can make key values feel off.
Excessive Scale keys on bones with Stretch enabled → skin problems (Ep.7).