2009

Look Ahead The number of frames in advance of the current frame that the
software looks for potential collisions. Default=30.
Hard Radius Distance from the target's pivot point, in multiples of the
delegate's bounding sphere, where no penetration should occur. Default=1.0.
TIP Because the hard radius' center is the pivot point, Avoid may not work as
expected with target objects whose pivot point is not centered, such as the box
primitive. For best results, use the Hierarchy panel > Adjust Pivot rollout controls
to center the pivot to the object.
Display Hard Radius Enables display of a wireframe sphere that depicts the
extent of the Hard Radius setting. Default=off.
Steer To Avoid group
Steer To Avoid is used by delegates to steer precisely around anticipated future
collisions based on the delegates' current speed and direction. Delegates using
this approach can pass very close to one another.
Detour Angle Maximum necessary turning angle relative to the direction of
delegate's goal that delegate will steer to avoid rather than slow down and
wait. Default=360. Range=0-360.
TIP To disable turning for avoidance, thus allowing only braking, set Detour Angle
to 0. This forces delegates to remain directed toward their goal so that they must
slow down and wait until there is a clearing in front of them, much like an audience
queuing to leave through an exit after a concert.
Brake Pressure Determines how strongly a delegate will react when it
encounters an avoided object. Higher values make the delegate more likely
to slow down or stop. Lower values will cause delegates to look for a way
around the obstacle so they can keep going, sometimes causing delegates to
veer off in unexpected directions. Default=2.0.
Repel group
Repel is a general separation force that is based only on the spatial position.
Delegates use this to keep from getting into situations where they might
side-swipe each other or where they might get so close that Steer To Avoid is
too difficult to achieve.
Strength Determines the strength of the repelling force; higher values result
in greater repulsion force. Default=0.2. Range=0.0 to 1.0.
4870 | Chapter 17 character studio