Houdini 20.0 Shelf tools

Slider Constraint shelf tool

Constrains an object to rotate and translate on a single axis, and limits the rotation and translation on that axis

On this page

Overview

This tool can be used to create objects capable of moving on a single axis, such as pistons.

You need to create an RBD object to apply this constraint to before you can use this tool.

This constraint type is currently only supported by the Bullet solver.

Note

This constraint will not work with packed primitives. However, you can achieve the equivalent using a constraint network.

Using RBD Slider Constraints

  1. Click the RBD Slider Constraint tool on the Rigid Bodies tab.

  2. Select the object to constrain and press Enter to confirm your selection.

  3. Select the position for the slider constraint and press Enter to confirm your selection.

    Note

    You can hold Alt to detach the constraint from the construction plane.

  4. Set the Goal Hinge Axis and Goal Up Axis on the Slider tab in the parameter editor. To restrict the range of motion, modify Max Rotation and Slide Range.

For specific parameter help see the RBD Slider Constraint dynamics node help.

Moving an RBD Slider Constraint

  1. Click the Dynamics Select Mode button on the selector and handle controls toolbar.

  2. Click LMB the constrained object in the scene view.

  3. Click RMB the Dynamics Select Mode button and turn on the Dynamics Modifiers checkbox.

  4. Click LMB the constraint you want to edit and press Enter to display the transformation handles.

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