Serial and Multiple Constraints (New for 5.1)

There are many ways to structure your physics object relations, you will see different methods and their corresponding applications; and also different ways to observe the relationship via color coding and user interfaces.

One to One - Serial Connection

The serial-connection application means that a rigid body is constrained, while is also a target of other rigid bodies as described in the following illustration:

This method is suitable for creating chain-like physics structures, such as chains, trains or caterpillar-like structures.

Please refer to the Creating a Series-Connected Chain section for more information.

Many to One

The many-to-one application means that several rigid bodies are constrained, while a single physics object is their mutual target as described in the following illustration:

This method is suitable for creating multiple physics structures, such as insects or cars.

Please refer to the Individual Constrained Objects with Single Target section for more information.

One to Many

The one-to-many application means to apply multiple constraints in a single rigid body, while targeting many other individual physics objects as described in the following illustration:

This method is suitable for creating joint physics structures for machines; or when you need to stabilize a physics structure from jittering because of the collisions between each physics object within the structure.

Please refer to the following sections for more information:

Applying Multiple Constraints

Because any one rigid body can be applied with multiple constraints, the relationships can be identified by the colors and user interfaces.

  1. Select a dynamic rigid body and open the Constraint Settings panel (Shortcut: Shift + F10).
  2. Click the button to select a desired constraint type from the list.
  3. Click the Pick Target button and pick another physics object to make it the connecting target.
  4. Repeat step 2 to 3 to add multiple constraints to a single rigid body and connect the constraints to different targets.
  5. Pull down the Constraint drop-down list to view and select the constraint(s) that are currently applied to the rigid body.

    Please note that the settings in the Constraint Settings panel may auto-change according to the current constraint type.

Observing the Relationships by Colors

When a rigid body is applied with multiple constraints, you may need to find out all the relationships. iClone provides color identification method to find out the related targets and the directly connected target for the current rigid body that has been applied with more constraints.