BipedPlus
Ep.22.1 — Upper Arm Shoulder Module
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A short update: Skirt left Hip Extra on the Build tab, and Upper Arm took that slot. It corrects the shoulder when the arm folds and unfolds, and it does not affect Twist.
What's covered
| Section | Content |
|---|---|
| Where | Hip Extra: Hip, Upper Arm, Calf, Forearm. Skirt slot → Upper Arm |
| Role | Shoulder corrective on fold and unfold. Twist stays put |
| Amount | A-Pose is 0°. About 45° down gives Weight 1. Everyday Z is 1–2, closer to 1 |
| Direction | Skirt, ponytail, tail, and hair stay customization. Focus is the base skeleton and correctives |
Related
- Ep.22 — Elbow · Hip Corrective
- Ep.21 — Double Knee
- Ep.21.1 — Thigh inner/outer
- Ep.16–18 — Customizing (hierarchy · layers · naming)
Steps
- Hip Extra on the Build tab lists Hip, Upper Arm, Calf, and Forearm. Skirt left this slot and Upper Arm replaced it.
- Match Default, then Build. Check the module in the Picker.
- Turn off Figure Mode. The module corrects the silhouette as the shoulder folds and unfolds. Twist must not move, so this module does not drive it. The module sits at front/back, side, and mid points.
- There was a request for Push when the shoulder drops. On the gear Start, A-Pose Current Angle is 0. Lowering reaches about 45°, and Weight from 0° to 45° becomes 1.
- Unlock and set position Z. The video uses Z 10 only to show the difference. The upper angle stays. Only the lower part pushes.
- Do not use it that strong day to day. 1 or 2 is enough, and about 1 is only a small thickness correction. That is the added shoulder bone.
Product direction
- Skirt, ponytail, tail, and hair differ by studio. There was also a request that Spring Magic did not work on a skirt. Those parts stay customization, with a guide so teams handle them in-house, rather than as default modules.
- The focus is a stable, higher-quality humanoid base skeleton, then widening the service from that skeleton.
- Customizing is covered in other videos. Do not stop at the provided template. After you understand the structure, bone names and layer names may change for a production.
- More attention goes to correctives such as the shoulder bone. Double Knee is also a base-skeleton module for a more realistic thigh. What is needed now is not more attached parts, but modules that make the base skeleton solid.
- This shoulder is a base module. A more advanced shoulder-muscle rig is a later direction.
Related
- Ep.22 — Elbow · Hip Corrective
- Ep.21 / Ep.21.1 — Double Knee · thigh inner/outer
- Ep.16–18 — Customizing
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Product: BipedPlus