FAnimNode_AnimDynamics

Overridden angular bias value Angular bias is essentially a twist reduction for chain forces and defaults to a value to keep chains stability in check.

Overridden angular damping value. The default is 0.7. Values below 0.7 won't have an effect.

Spring constant to use when calculating angular springs, higher values mean a stronger spring.

If true the body will attempt to align itself with the specified angular target

Set to true to use the solver to simulate a connected chain

If true we will perform bone transform evaluation, otherwise skip - allows visualisation of the initial anim state compared to the physics sim

If true we will perform physics update, otherwise skip - allows visualisation of the initial state of the bodies

Whether or not wind is enabled for the bodies in this simulation

If true the body will attempt to spring back to its initial position

The bone to attach the physics body to, if bChain is true this is the top of the chain

If true, the override value will be used for the angular bias for bodies in this node.

If true, the override value will be used for angular damping

If true, the override value will be used for linear damping

Extents of the box to use for simulation

Use gravity override value vs gravity scale

Whether to evaluate planar limits

Whether to evaluate spherical limits

If bChain is true this is the bottom of the chain, otherwise ignored

Resolution method for planar limits

When using non-world-space sim, this is an overall clamp on acceleration derived from ComponentLinearAccScale and ComponentLinearVelScale, to ensure it is not too large.

When using non-world-space sim, this controls how much of the components world-space acceleration is passed on to the local-space simulation.

When using non-world-space sim, this applies a 'drag' to the bodies in the local space simulation, based on the components world-space velocity.

Data describing the constraints we will apply to the body

An external force to apply to all bodies in the simulation when ticked, specified in world space

Gravity Override Value

Scale for gravity, higher values increase forces due to gravity

We can't get clean bone positions unless we are in the evaluate step.

Cached sim space that we last used.

Overridden linear damping value. The default is 0.7. Values below 0.7 won't have an effect.

Spring constant to use when calculating linear springs, higher values mean a stronger spring.

Vector relative to the body being simulated to attach the constraint to

Number of update passes on the linear and angular limits after we solve the position of the bodies, recommended to be around a quarter of NumSolverIterationsPreUpdate

Number of update passes on the linear and angular limits before we solve the position of the bodies recommended to be four times the value of NumSolverIterationsPostUpdate

List of available planar limits for this node

Previous component & actor transforms, used to account for teleports.

When in BoneRelative sim space, the simulation will use this bone as the origin

The settings for rotation retargeting

The space used to run the simulation

Radius to use if CollisionType is set to CustomSphere

List of available spherical limits for this node

Scale to apply to calculated wind velocities in the solver

Accessors for editor code (mainly for visualization functions)

Gets the specified bound bone reference.

Gets the number of currently bound bones (always 1 unless using a chain)

Evaluate the new component-space transforms for the affected bones.

Initialize any bone references you have

Return true if it is valid to Evaluate

Interface for derived skeletal controls to implement use this function to update for skeletal control base

Called to gather on-screen debug data. This is called on the game thread.

Override this to indicate that PreUpdate() should be called on the game thread (usually to gather non-thread safe data) before Update() is called.

Called when the node first runs.

For nodes that implement some kind of simulation, return true here so ResetDynamics() gets called when things like teleports, time skips etc.

Override this to perform game-thread work prior to non-game thread Update() being called

Called to help dynamics-based updates to recover correctly from large movements/teleports

Maximum time to consider when accumulating time debt to avoid spiraling.