Houdini 20.0 Shelf tools

Set Muscle ID shelf tool

Sets the Muscle ID for selected muscles.

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Deprecated

The object-level Muscle tools are now deprecated pending the release of the new SOP-based Muscles & Tissue system.

Overview

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

  1. Click the Set Muscle ID tool on the Muscles shelf tab.

  2. Select the muscles, muscle rigs, and franken muscles that you wish to assign a new Muscle ID and press Enter.

  3. 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 L_bicep, L_triceps, L_bracialis.

Tip

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.

See also

Shelf tools

Using the shelf

  • Customize the shelf

    How to change the look of the shelf, change and rearrange its contents, and create your own shelf tools.

Technical