modifier3d

3d · animation · 14 properties · 3D

The 3D twin of modifier2d, over bone3d: look_at, two_bone_ik, fabrik, ccdik and jiggle, posing bones after the clip has run. A chain solver turns each bone by the shortest arc onto the solved point, so a bone's twist about its own aim is left as the clip wrote it.

In a scene, modifier3d is the node key that applies it. A script reaches the same properties through node.modifier3d.get() and node.modifier3d.set(table).

Properties

property	type	default	description
angle_limit	float	0	How far a ccdik bone may turn from its rest, in radians; 0 leaves it free
bone	string	—	Node path to the driven bone, relative to this node; empty means this node. For a chain solver, its root
chain	int	0	How many bones the chain holds, counting the driven one; 0 walks to the deepest tip
damping	float	0.75	How much of a jiggle bone's speed survives a tick, 0 to 1
enabled	bool	true	Whether the modifier runs; off leaves the clip's pose alone
flip	bool	false	Bend a two-bone chain the other way
gravity	vec3	[0,-6,0]	Pull on a jiggle bone while use_gravity is on
iterations	int	10	Solver passes for fabrik and ccdik
kind	enum	look_at	Aim one bone at the target, bend a two-bone chain to it, reach with a chain of any length (fabrik or ccdik), or let a chain lag behind the pose (jiggle) One of look_at, two_bone_ik, fabrik, ccdik, jiggle.
mass	float	0.75	What gravity weighs against stiffness on a jiggle bone
stiffness	float	3	How hard a jiggle bone is pulled back to the pose
target	string	—	Node path to the point to aim at, relative to this node. Unused by jiggle
tolerance	float	0.01	How close to the target ends a fabrik or ccdik solve early
use_gravity	bool	false	Whether a jiggle chain is pulled by gravity