TYPE: POP
TITLE: Lookat POP

The Lookat POP applies a rotation on the particle's axis so that its
z axis faces a particular direction.

This POP modifies the following attributes: rot.

Parameters:
    Activation       - Turns the POP on and off		/activate
    Source Group     - Subset of points to act on
    Lookat Mode      - How to perform lookat
	Lookat plane   - look at plane defined by direction
	Lookat point   - look right at the point
    Reference        - Transform space to interpret direction
    Object           - Object when using referenced object
    Direction        - direction to point in 		/dirx /diry /dirz

Local Variables 
    Overview - The standard local variables are usable in this POP.  Please
               refer to the Houdini manual for more details.
