2010

Table Of Contents
To make Marions hair collide with her head and neck
1 In the panel, select Show > Locators so you can see collision constraints,
which are locators, when you create them.
2 To create the collision constraint for Marions head, do the following:
Select Hair > Display > Start Position.
Using the Select Tool, drag around all the hair curves and select Hair
> Convert Selection > To Start Curves.
Select Hair > Create Constraint > Collide Sphere.
Using the Scale Tool, resize the sphere so it expands beyond Marions
head and you can see it.
Using the Move Tool, move the sphere up the Y-axis so the top of the
sphere is aligned with the top of Marions head.
Using the Scale Tool again, resize the sphere so it matches the basic
shape of Marions head. First try scaling in the X direction to adjust
the width of the sphere from ear to ear. Then tumble the camera to
see the side of Marions head and scale in the Z direction to adjust
the sphere width from the back of Marions head to her nose. You
may also need to move the sphere to tweak its size and position, as
shown in the images below.
768 | Chapter 15 Hair