Create an nHair Point to Surface constraint

You can create a Point to Surface constraint to attach hair curve CVs to a target surface such as a deforming nCloth surface, or a passive collision object. For example, you can use a Point to Surface constraint to hold an nCloth hat or head-band to a character's hair.

To create an nHair Point to Surface constraint

1. In the scene view, select the hair curve CVs you want to constrain. See Select curve components for nConstraints.
2. -select the target surface to which you want to constrain the hair curves components.

   The target surface can be an nCloth or passive object, or a non-Nucleus polygon mesh.

   NOTE:

   If you selected a target surface that is a nCloth or passive collision object, the surface will be made a passive object when the constraint is created.

3. In the FXmenu set, select nConstraint Point to Surface.

   The nHair curves components you selected are now constrained to the selected target surface, and they are now connected to the nHair system's Maya Nucleus solver through a dynamicConstraint node.

   The preset properties on the dynamicConstraint node determine the constraint’s type (in this case, a Point to Surface constraint) and how it behaves. For example, you can create a Point to Surface constraint with the following attribute settings:

   • Spring as the Constraint Method
   • Object to Object as the Constraint Relation
   • All to First as the Component Relation
   • Within Max Distance as the Connection Method
   • At Start as the Connection Update.

   See Dynamic Contraint attributes.

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