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‘Mud animation by pioneer San Francisco Chinese American animator Joseph Sunn.’ From the “Ralph Wolfe’s Scrambled Nature Studies” series.
Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
Clay animation or claymation, sometimes plasticine animation, is one of many forms of stop-motion animation. Each animated piece, either character or background, is “deformable”—made of a malleable substance, usually plasticine clay.
Traditional animation, from cel animation to stop motion, is produced by recording each frame, or still picture, on film or digital media and then playing the recorded frames back in rapid succession before the viewer. These and other moving images, from zoetrope to films and video games, create the illusion of motion by playing back at over ten to twelve frames per second. The techniques involved in creating computer-generated imagery are conversely generally removed from a frame-by-frame process…
Each object or character is sculpted from clay or other such similarly pliable material as plasticine, usually around a wire skeleton, called an armature, and then arranged on the set, where it is photographed once before being slightly moved by hand to prepare it for the next shot, and so on until the animator has achieved the desired amount of film. Upon playback, the mind of the viewer perceives the series of slightly changing, rapidly succeeding images as motion.
A consistent shooting environment is needed to maintain the illusion of continuity: objects must be consistently placed and lit, and work must proceed in a calm environment.
Producing a stop-motion animation using clay is extremely laborious. Normal film runs at 24 frames per second (frame/s). With the standard practice of “doubles” or “twos” (double-framing, exposing two frames for each shot), 12 changes are usually made for one second of film movement. Shooting a 30-minute movie would therefore require making approximately 21,600 stops to change the figures for the frames; a full-length (90-minute) movie, 64,800—and possibly many more if some parts were shot with “singles” or “ones” (one frame exposed for each shot).
The object must not be altered by accident, slight smudges, dirt, hair, or dust. Feature-length productions have generally switched from clay to rubber silicone and resin cast components: Will Vinton has dubbed one foam-rubber process “Foamation”. Nevertheless, clay remains a viable animation material where a particular aesthetic is desired.
Clay animation can take several forms:
“Freeform” clay animation is an informal term referring to the process in which the shape of the clay changes radically as the animation progresses, such as in the work of Eli Noyes and Ivan Stang’s animated films. Clay can also take the form of “character” clay animation, where the clay maintains a recognizable character throughout a shot, as in Art Clokey’s and Will Vinton’s films.
One variation of clay animation is strata-cut animation, in which a long bread-like loaf of clay, internally packed tight and loaded with varying imagery, is sliced into thin sheets, with the camera taking a frame of the end of the loaf for each cut, eventually revealing the movement of the internal images within. Pioneered in both clay and blocks of wax by German animator Oskar Fischinger during the 1920s and 1930s, the technique was revived and highly refined in the mid-1990s by David Daniels, an associate of Will Vinton, in his 16-minute short film “Buzz Box”…
The oldest known extant clay animation film (with clay animation as its main production method) is Long Live the Bull (1926) by Joseph Sunn…