This tool will change the Muscle ID parameter of selected muscle objects.
The Muscle ID is used as a grouping mechanism when using the Muscle Displace workflow. The Muscle ID parameter simply sets a
muscle_id point attribute on associated muscles. All muscles sharing a common value for the
muscle_id attribute will be treated as the same deformer geometry when displacing skin using a Muscle Deform SOP. The deforming influence of the grouped muscle objects is combined as though they were a single muscle.
See the Muscle Deform SOP for more information.
Setting Muscle ID
Click the Set Muscle ID tool on the Muscles shelf tab.
Select the muscles, muscle rigs, and franken muscles that you wish to assign a new Muscle ID and press Enter.
A dialog box will appear. Enter the new value for the Muscle_ID and press theAccept button.
The ID you enter can be either a string or a numerical value. For example, you can use the string
L_upper_arm to represent the muscles
Using the expression variable
$OS will make all selected muscle ID’s unique. Essentially this does the opposite of setting a common ID for a group of muscles.
$OS evaluates to the object node name of each selected item.
For more information, the muscle workflow help page.