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Animation is a method by which still figures are manipulated to appear as moving images. In traditional animation, images are drawn or painted by hand on transparent celluloid sheets to be photographed and exhibited on film. Today, many animations are made with computer-generated imagery (CGI). Computer animation can be very detailed 3D animation, while 2D computer animation can be used for stylistic reasons, low bandwidth, or faster real-time renderings. Other common animation methods apply a stop motion technique to two- and three-dimensional objects like paper cutouts, puppets, or clay figures.
Computer animation is the process used for digitally generating animations. The more general term computer-generated imagery (CGI) encompasses both static scenes and dynamic images, while computer animation only refers to moving images. Modern computer animation usually uses 3D computer graphics to generate a three-dimensional picture. The target of the animation is sometimes the computer itself, while other times it is film.
Stop motion is an animated filmmaking technique in which objects are physically manipulated in small increments between individually photographed frames so that they will appear to exhibit independent motion or change when the series of frames is played back. Any kind of object can thus be animated, but puppets with movable joints or plasticine figures are most commonly used. Puppets, models or clay figures built around an armature are used in model animation. Stop motion with live actors is often referred to as pixilation. Stop motion of flat materials such as paper, fabrics or photographs is usually called cutout animation.
A storyboard is a graphic organizer that consists of illustrations or images displayed in sequence for the purpose of pre-visualizing a motion picture, animation, motion graphic or interactive media sequence. The storyboarding process, in the form it is known today, was developed at Walt Disney Productions during the early 1930s, after several years of similar processes being in use at Walt Disney and other animation studios.
Inbetweening, also known as tweening, is a process in animation that involves creating intermediate frames, called inbetweens, between two keyframes. The intended result is to create the illusion of movement by smoothly transitioning one image into another.
An animator is an artist who creates multiple images, known as frames, which give an illusion of movement called animation when displayed in rapid sequence. Animators can work in a variety of fields including film, television, and video games. Animation is closely related to filmmaking and like filmmaking is extremely labor-intensive, which means that most significant works require the collaboration of several animators. The methods of creating the images or frames for an animation piece depend on the animators' artistic styles and their field.
While the history of animation began much earlier, this article is concerned with the development of the medium after the emergence of celluloid film in 1888, as produced for theatrical screenings, television and (non-interactive) home entertainment.
Visual effects is the process by which imagery is created or manipulated outside the context of a live-action shot in filmmaking and video production. The integration of live-action footage and other live-action footage or CGI elements to create realistic imagery is called VFX.
Traditional animation is an animation technique in which each frame is drawn by hand. The technique was the dominant form of animation in cinema until computer animation.
Skeletal animation or rigging is a technique in computer animation in which a character is represented in two parts: a surface representation used to draw the character and a hierarchical set of interconnected parts, a virtual armature used to animate the mesh. While this technique is often used to animate humans and other organic figures, it only serves to make the animation process more intuitive, and the same technique can be used to control the deformation of any object—such as a door, a spoon, a building, or a galaxy. When the animated object is more general than, for example, a humanoid character, the set of "bones" may not be hierarchical or interconnected, but simply represent a higher-level description of the motion of the part of mesh it is influencing.
Marc Fraser Davis was a prominent American artist and animator for Walt Disney Animation Studios. He was one of Disney's Nine Old Men, the famed core animators of Disney animated films, and was revered for his knowledge and understanding of visual aesthetics. After his work on One Hundred and One Dalmatians he moved to Walt Disney Imagineering to work on rides for Disneyland and Walt Disney World before retiring in 1978.
Character animation is a specialized area of the animation process, which involves bringing animated characters to life. The role of a character animator is analogous to that of a film or stage actor and character animators are often said to be "actors with a pencil". Character animators breathe life in their characters, creating the illusion of thought, emotion and personality. Character animation is often distinguished from creature animation, which involves bringing photorealistic animals and creatures to life.
Motion graphic design, also known as motion design, is a subset of graphic design in that it uses graphic design principles in a filmmaking or video production context through the use of animation or filmic techniques. Examples include kinetic typography and graphics used in film and television opening sequences, and station identification logos of some television channels.
Computer facial animation is primarily an area of computer graphics that encapsulates methods and techniques for generating and animating images or models of a character face. The character can be a human, a humanoid, an animal, a legendary creature or character, etc. Due to its subject and output type, it is also related to many other scientific and artistic fields from psychology to traditional animation. The importance of human faces in verbal and non-verbal communication and advances in computer graphics hardware and software have caused considerable scientific, technological, and artistic interests in computer facial animation.
Virtual cinematography is the set of cinematographic techniques performed in a computer graphics environment. It includes a wide variety of subjects like photographing real objects, often with stereo or multi-camera setup, for the purpose of recreating them as three-dimensional objects and algorithms for the automated creation of real and simulated camera angles. Virtual cinematography can be used to shoot scenes from otherwise impossible camera angles, create the photography of animated films, and manipulate the appearance of computer-generated effects.
Pose to pose is a term used in animation, for creating key poses for characters and then inbetweening them in intermediate frames to make the character appear to move from one pose to the next. Pose-to-pose is used in traditional animation as well as computer-based 3D animation. The opposite concept is straight ahead animation, where the poses of a scene are not planned, which results in more loose and free animation, though with less control over the animation's timing.
Previsualization is the visualizing of scenes or sequences in a movie before filming. It is a concept used in other creative arts, including animation, performing arts, video game design, and still photography. Previsualization typically describes techniques like storyboarding, which uses hand-drawn or digitally-assisted sketches to plan or conceptualize movie scenes.
Blocking is an animation technique in which key poses are created to establish timing and placement of characters and props in a given scene or shot. This technique is most commonly used in 3D computer animation, where it is sometimes referred to as Stepped animation.
Disney's twelve basic principles of animation were introduced by the Disney animators Ollie Johnston and Frank Thomas in their 1981 book The Illusion of Life: Disney Animation. The principles are based on the work of Disney animators from the 1930s onwards, in their quest to produce more realistic animation. The main purpose of these principles was to produce an illusion that cartoon characters adhered to the basic laws of physics, but they also dealt with more abstract issues, such as emotional timing and character appeal.
Anticipation is one of the fundamental 12 basic principles of animation, as set out by Frank Thomas and Ollie Johnston in their authoritative 1981 book on the Disney Studio titled The Illusion of Life. An anticipation pose or drawing is a preparation for the main action of an animated scene, as distinct from the action and the reaction.
References
- ↑ Lasseter, John (July 1987). Principles of Traditional Animation applied to 3D computer animation". ACM Computer Graphics Vol. 21, Number 4. pp. 35–44.
- ↑ Williams, Richard (2001). The Animator's Survival Kit. A Manual of Methods, Principles and Formulas for Classical, Computer, Games, Stop Motion and Internet Animators. United Kingdom: Faber and Faber. p. 61.
- ↑ "Straight Ahead and Pose to Pose Principle". ToonBoom Harmony.
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