Documentation / scene / PhysicsCurves

Interface: PhysicsCurves

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:30

Depth-based physics parameter curves. Each curve is evaluated with t = pointDepth / maxDepth (0 at root, 1 at tip). This allows parameters to vary smoothly along the bone chain.

Properties

massScale

massScale: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:32

Scales point mass by depth

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gravityScale

gravityScale: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:34

Scales gravity strength by depth

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windForceScale

windForceScale: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:36

Scales wind force effect by depth (also multiplied by depth rate)

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resistance

resistance: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:38

Velocity damping [0-1]. Higher = less damping. Controls how much velocity is preserved

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hardness

hardness: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:40

Restore-to-animation stiffness [0-1]. Higher = bone stays closer to animated pose

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friction

friction: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:42

Friction multiplier by depth. Scales collision friction accumulation

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pointRadius

pointRadius: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:44

Collision radius by depth, mapped from VRM SpringBone hitRadius when available

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sliderJointLength

sliderJointLength: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:46

Extra slack length for horizontal/shear constraints (allows stretching)

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allShrinkScale

allShrinkScale: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:48

Global shrink stiffness multiplier (applied to all constraint types)

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allStretchScale

allStretchScale: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:50

Global stretch stiffness multiplier (applied to all constraint types)

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structuralShrinkVertical

structuralShrinkVertical: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:52

Structural vertical constraint shrink stiffness by depth

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structuralStretchVertical

structuralStretchVertical: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:54

Structural vertical constraint stretch stiffness by depth

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structuralShrinkHorizontal

structuralShrinkHorizontal: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:56

Structural horizontal constraint shrink stiffness by depth

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structuralStretchHorizontal

structuralStretchHorizontal: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:58

Structural horizontal constraint stretch stiffness by depth

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shearShrink

shearShrink: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:60

Shear constraint shrink stiffness by depth

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shearStretch

shearStretch: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:62

Shear constraint stretch stiffness by depth

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bendingShrinkVertical

bendingShrinkVertical: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:64

Bending vertical constraint shrink stiffness by depth

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bendingStretchVertical

bendingStretchVertical: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:66

Bending vertical constraint stretch stiffness by depth

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bendingShrinkHorizontal

bendingShrinkHorizontal: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:68

Bending horizontal constraint shrink stiffness by depth

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bendingStretchHorizontal

bendingStretchHorizontal: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:70

Bending horizontal constraint stretch stiffness by depth

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fakeWavePower

fakeWavePower: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:72

Fake wave amplitude by depth (sinusoidal pseudo-wind on leaf bones)

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fakeWaveFreq

fakeWaveFreq: InterpolatorScalar

Defined in: libs/scene/src/animation/joint_dynamics/controller.ts:74

Fake wave frequency offset by depth