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Tencent Effect SDK

Skeletal Dynamics

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Last updated: 2026-03-30 18:03:44

Adding Physics After Bone Rigging

This section describes how to apply physics effects, such as swinging motion, to a 3D model after you have completed bone rigging.
1. Open the component panel and add the DynamicBone component to the root node of your skeleton.



2. Set the root node:
Drag the first bone in the bone chain that you want to apply physics effects to into the Root field of the DynamicBone component.
3. Configure parameters:
To adjust the elasticity and simulate gravity, modify the gravity and gravityFactor parameters.



Common parameter presets:
Default settings for elastic, swinging motion:
dampness: 0.1
elasticity: 0.1
stiffness: 0.1
gravityFactor: 0
gravity: 0, -1, 0
Floating effect, suitable for veils:
dampness: 0.3
elasticity: 0.05
stiffness: 0.3
gravityFactor: 0
gravity: 0, -1, 0
Soft and elastic, ideal for bouncy ears:
dampness: 0.2
elasticity: 0.1
stiffness: 0.2
gravityFactor: 0
gravity: 0, -1, 0
Soft with gravity:
dampness: 0.2
elasticity: 0.1
stiffness: 0.2
gravityFactor: 0.08
gravity: 0, -1, 0

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