Objects being converted to cloth must have single-sided, connected polygons without caps. Once you’ve created a cloth simulator and cloth object, the next step is to create cloth groups (groups of vertices) within each object. There are four types of groups available for cloth objects:

• Dynamic: Dynamic cloth groups are simulated using the Dynamics Controls (see following step), which determine how the cloth will move, fold, drape, etc. as it moves (gravity, wind force, etc.) or as an underlying figure/prop moves (such as a ball underneath a carpet or a figure underneath clothing). You can create multiple dynamic groups for each clothing object, and each dynamic group can have different dynamics settings.
Choreographed: Each cloth object can have one choreographed group. Choreographed vertices can follow keyframed movement or be excluded from the cloth simulation.
• Constrained: Each cloth object can have one constrained group. Constrained vertices “stick” to corresponding polygon faces of the underlying figure, making them useful for complex cloth regions that follow the movement of the underlying body part.
• Decorations: Each cloth object can have two decorations groups (one “soft” and one “rigid”. Decoration groups animate, moving as underlying cloth moves while staying over the underlying body. The two types of decoration groups are:
• Soft: Objects in the soft decorated group move with the underlying cloth and can flex as the cloth flexes (belt loop).
• Rigid: Objects in the rigid decorated group move with the underlying cloth but do not bend or flex (buttons).

If you want the current cloth object to consist of a single dynamic group, continue on to Step 4 to set your dynamics. To create multiple groups, use the following buttons:

• New Dynamic Group: Clicking the New Dynamic Group button opens the New Dynamic Vertex Group Name box. Enter your desired name for the new dynamic group and click OK. By default, your entire cloth object consists of a dynamic group called _default_. Any vertices not part of other groups when you’re done creating/editing groups remain in this group.
• Delete Dynamic Group: Clicking the Delete Dynamic Group button deletes the currently selected dynamic group.
• Edit Dynamic Group: Clicking the Edit Dynamic Group button opens the Group Editor palette.
• Edit Choreographed Group: Clicking the Edit Choreographed Group button opens the Group Editor palette, allowing you to add or remove vertices from the currently selected choreographed group.
• Edit Constrained Group: Clicking the Edit Constrained Group button opens the Group Editor palette, allowing you to add or remove vertices from the currently selected constrained group.
• Edit Soft Decorative Group: Clicking the Edit Soft Decorative Group button opens the Group Editor palette, allowing you to add or remove vertices from the currently selected soft decoration group.
• Edit Rigid Decorative Group: Clicking the Edit Rigid Decorative Group button opens the Group Editor palette, allowing you to add or remove vertices from the currently selected rigid decoration group.

Keep the following in mind when working with cloth groups:

• Adding vertices to the current group removes them from other groups.
• Removing vertices from the default group adds them to the choreographed group.
• Removing vertices from any group adds them to the default group.

The arrow at the top right of the Cloth area displays the currently selected cloth group within the currently selected cloth object. Clicking this arrow opens a pull-down menu allowing you to select any of the cloth groups in the current cloth object for modification.