IK 使用のときに許容する脚の伸び幅
Inverse Kinematics (IK) can often be handled more smoothly if a small amount of "slack" is allowed in the positions of bones relative to each other. This property controls how much slack is available in the leg joints.
値の範囲はワールド座標で 0 から 1。デフォルトの値である 0.05 の場合、IK ゴールがターゲットの 95% まで到達したとき腕は伸び始め、5% 伸びます。伸びは肘と手首の Transform を移動させることにより実現されます。
理想的な値はリグとアニメーションに依存しますが、一般的にはより大きな値にすることで IK 計算がスムーズになる代わりに脚の伸び幅がより非現実的になります。
See Also: HumanDescription.armStretch.
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