Creature Effects Terminology
The creature special effects film industry uses some unique terminology. To get the most out of your tour thorough this site you may want to familiarize yourself with the following terms you will encounter on the tour.
Puppet
A prop used on set which is controlled by
one puppeteers located outside of the camera's field of view.
Articulated Puppet
A puppet built to perform a full range
of motions and/or expressions. Designed for use in close-up scenes where
detailed performance is required.
Cable Articulated Puppet
A puppet which is controlled through the
use of one or more cables operated by levers. The fully articulated
Shriekers for Tremors 2: Aftershocks for example were controlled by 13
different cables which required 13 puppeteers to operate, far more than
the film's budget would support. The solution was to have other crew
members working the handles when complex creature movements were required.
Animatronic Puppet
A puppet which is operated though
the use of electronic servos and/or hydraulic pistons, often
controlled though a computerized interface.
Hand Puppet
Simple puppet directly controlled by the hand of the puppeteer. No cables, electronics or hydraulics are required. Most often used when complex movements are not required. Several scenes of the graboid from Tremors were effectively accomplished on a miniature set with a simple hand puppet to represent the head of the worm coming out of the ground.
Hydraulic Puppet
A puppet which is controlled by hydraulic
pistons. Hydraulics are most often used to move large or heavy puppets.
Because of the great power of hydraulic systems, they can be somewhat
dangerous. Often times puppeteers control hydraulic puppets through
complex computer interfaces which help protect cast, crew and even the
puppet itself from an accidental dangerous moves or a malfunction of the
system itself.
Motion Controlled Puppet
A puppet for which all, or almost all,
movement is controlled via computer, so that moves are precisely
repeatable. The head of the Goro puppet from Mortal Kombat, for example,
was programmed with a specific series of lip movements which were timed to
lip-sync to the character's voice track. The puppet's head performed the
lip movements correctly on every take, allowing the puppeteers to focus on
other aspects of the performance.
Hero Puppet
A fully functional (fully articulated)
puppet designed for use in close-up scenes where detailed performance is
required.
Stunt Puppet
A puppet lacking full functionally
(not fully articulated) designed for use in wide shots or quick scenes
were a fully articulated is not required. The stunt Shriekers in
Tremors 2: Aftershocks for example were only capable of movement via
crew pulling on fishing line and were used primarily for quick death shots.
Their bodies were filled with bags of innards and small explosive charges
were used to simulate bullet strikes. When the explosive charges fired,
the crew let go of the supporting lines letting the creatures fall limply
to the ground.
Puppeteer
Crew member specially trained in
performing some or all movements of a puppet. Often, many puppeteers are
required to create all the required movements
Full Scale
A sculpture or puppet created in the
actual size in which it will be represented on screen.
Miniature
A sculpture or puppet built smaller than
the size it appear on screen. Miniature sculptures are used in design and
testing and miniature puppets are used for photography on miniature sets
when creation of a full scale puppet is not feasible
Telemetry Device
A mechanism worn by the puppeteer which,
through a series of strategically mounted potentiometers, reads the
puppeteer's body movements and translates them to a computer system.
The computer system interprets the movements and sends corresponding
movements to a puppet. The advantage is that this device one puppeteer to
control far more movements at once, such as raising a multi-jointed arm,
or closing all five fingers. This technique cuts down on the number of
puppeteers required. It also cuts down rehearsal and shooting time because
the puppeteer's movements are intuitive, allowing for acting based
performance than more traditional means of control like radio controlled
airplane transmitters or pulling on cable articulated levers.
Life Cast
An accurate, life-size "copy" of the
face and/or body of an actor. It is created from impressions taken of the
actor in plaster or other materials. Clay is sculpted over the resulting
life cast to create the desired creature parts or make-up effects appliances.
Servo
Small electric motor used to remotely
control puppet movement. Often used for the small detailed movements
required for facial expressions.