Since | 20.5 |
The multiik component sets up IK chains with more than 3 nodes. It can also set up multiple IK chains in the rig hierarchy using segments.
Parameters ¶
name
The name that is appended to the IK nodes added by this multiikcomponent. The name is not necessary when using segments, as the segment name is also added to the nodes to clearly identify the segment they belong to.
prefix
The prefix that is added to the node names in the IK setup.
suffix
The suffix that is added to the node names in the IK setup.
guidesource
The guide skeleton that is used as a reference when creating controls.
Settings ¶
dampen
A larger value dampens the effect of the IK solve, smoothing its snapping effects at the cost of accuracy.
stretch
A larger values allows the IK chain to stretch more when the target is beyond the length of the IK chain.
trackingthreshold
Sets the accuracy of the solve. A lower value is slower, but more accurate. A higher value is faster, but less accurate.
usetwist
When turned on, uses the pole vector to twist the IK chain.
usegoalrot
When turned on, uses the goal rotation for the target orientation. When turned off, uses the solver’s position for the target orientation.
resiststraight
When turned on, resists straightening of the IK chain.
levelpolevec
When turned on, sets the pole vector controls to world orientation.
leveltip
When turned on, sets the tip controls to world orientation.
levelroot
When turned on, sets the root controls to world orientation.
polvecoffset
The amount to offset the pole vector in the direction of the middle joint between the root and tip.
swapname
When turned on, sets the name parameter to be a prefix. When turned off, sets the name parameter to be a suffix.
Driven ¶
segments
Segments are tags that separate each IK chain. For example, *Leg
loops over L_Leg and R_Leg. Segment tags can be set up on the joints using an Attribute Adjust Array SOP.
By default, segments is empty and is run once.
driven
The nodes to drive. You can specify the individual joints, for example, L_Hip
, L_Knee
, L_Ankle
, or a tag that exists on the TransformObject nodes, for example, %tag(ik) & %tag(L_Leg)
.
It is good practice to also specify the bind
tags that are set up by default on the fktransform component’s tags parameter. The fktransform component is normally the first component that is used to start building a rig. Including the bind
tag helps to ensure that you don’t include other controls that might have inherited, for example, the L_Leg
tag. So in this case, you can set driven to %tag(bind) & %tag(ik)
.
Parents ¶
rootparent
The parent of the root control(s). When empty, the root is parented to the parent of the root driven node. To unparent the roots, add an underscore in rootparent.
tipparent
The parent of the tip control(s). When empty, the tip is not parented.
povectorparent
The parent of the pole vector(s). When empty, the pole vector is parented to the tip.
Tags ¶
Shape ¶
shape
The shape of the controls. It can be set to any of the built-in APEX control shapes.
scale
The scale of the control shapes.
color
The color of the control shapes.
See also |