Ep.14 — Pose Mirror · Flip · Reset Selection

Overview

Covers cases where BipedPlus provides better results than standard Biped when doing Copy · Flip (mirror) in Ani Utils, and how to do partial selection and reset.
Focuses on common confusing situations in action poses — COM (Center of Mass), Clavicle, Pelvis, Twist, etc.

Where to do it: Ani Utils tab → Copy / Flip / Reset Selection

COM (Center of Mass) Tilt + Flip

With Standard Biped

• Flipping while the body is tilted often results in legs and feet pointing the wrong way.
• This is especially true for action/weight-shift poses that use a tilted COM.

BipedPlus

1. Copy → Flip (Ani Utils).
2. Even with a tilted COM, symmetry tends to come out naturally.
3. Useful for left-right reversals of reference poses.

Clavicle-Only Mirror

Problem

• Selecting only Clavicle for Copy · Mirror → shoulder angle differs from intent.

BipedPlus

1. Select only Clavicle in the same pose.
2. Copy · Mirror.
3. Mirrors relative to Chest (upper body) → shoulder line aligns.
4. Same result when Flip-only Clavicle is selected.

Use case: When you only need to adjust shoulders without affecting the full body.

Pelvis Rotation + Flip

Behavior

• Quickly applying multi-axis rotations to Pelvis then Flipping can make legs appear inverted.

How to Check

• If Copy → Left/Right makes the legs change naturally — it's a correct mirror.
• If it looks wrong:
• Preview with Copy before Flip.
• Adjust Pelvis rotation order.
• Or select only legs/arms and Mirror (see below).

BipedPlus is designed to mirror without forcibly separating the Pelvis (explained in video).

Body Twist · Partial Mirror

When doing a full-body Mirror:

Reset Selection — Upper Body Only Reset

Keep lower body pose, reset only upper body to default:

1. Select only upper body: Spine, Arm, Head, etc.
2. Ani Utils → Reset Selection.
3. Only selected parts return to T-Pose etc. — leg pose stays.

Use case: When fixing blocking/reference while keeping lower body, reset only upper body.

Checklist

□ Tilted COM pose → Check Flip result
□ Clavicle-only Mirror → Shoulder symmetry?
□ Strong Pelvis rotation → Preview with Copy first
□ Don't want Twist=0 → Mirror arms/legs only
□ Reset upper body only → Reset Selection
□ Custom (twin tails) → Registered in Ep.13?

Notes

• Unregistered (Ep.13) custom items may be outside Flip·Reset scope.
• May need to re-key after partial Mirror.

Series Wrap-Up

Watching Ep.0–14 in order covers the entire workflow: Build → Figure → Controller → Skin → Edit → Picker → Ani → Seed → Simulation → Mirror.
Apply alongside your team's naming conventions, Layer rules, and export rules.

→ README — Table of Contents