-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
1/15
Steering Behavior For
Autonomous CharactersReviewing Craig W. Reynolds paper,1999
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
2/15
AbstractThis paper presents solutions for one requirement
ofautonomous characters in animation and games: the abilityto
navigate around their world in a life-like and
improvisational manner. These steering behaviors arelargely
independent of the particulars of the charactersmeans of
locomotion. Combinations of steering behaviorscan be used to
achieve higher level goals (For example: getfrom here to there
while avoiding obstacles, follow this
corridor, join that group of characters...) This paper
dividesmotion behavior into three levels. It will focus on the
middlelevel of steering behaviors, briefly describe the lower level
oflocomotion, and touch lightly on the higher level of goalsetting
and strategy.
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
3/15
A hierarchy of motion
behaviors
Motivation
Task
Motor
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
4/15
A Simple Vehicle Model This vehicle model is based on a
point mass approximation. On theone hand that allows a very
simpleand computationally cheapphysically-based model (forexample,
a point mass has velocity(linear momentum) but no momentof inertia
(rotational momentum)).
This use of an oversimplified non-physical vehicle model is
merely for
convenience and intended to bewithout loss of generality
itshould always be possible tosubstitute a more plausible,
morerealistic physically based vehiclemodel.
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
5/15
A Simple Vehicle Model
Flying Vehicle
Surface Hugging
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
6/15
Steering Behaviors
Seek
Flee
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
7/15
Steering Behaviors
Pursuit
Evasion
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
8/15
Steering Behaviors
Offset pursuit
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
9/15
Steering Behaviors
Arrival
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
10/15
Steering Behaviors
Obstacle avoidance
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
11/15
Steering Behaviors
Wander
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
12/15
Steering Behaviors
Unaligned collision avoidance
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
13/15
Steering Behaviors
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
14/15
Steering Behaviors
Separation
Cohesion
Alignment
Leader following
-
7/24/2019 Reviewing Craig W. Reynolds paper,1999
15/15
Combining Behaviors
A character may sequentially switch betweenbehavioral modes as
circumstances change in its
world.
some kinds of behaviors are commonly blended
together, effectively acting in parallel.
