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In animation and filmmaking, a key frame (or keyframe) is a drawing or shot that defines the starting and ending points of a smooth transition.These are called frames because their position in time is measured in frames on a strip of film or on a digital video editing timeline.
This process mimics that used in early cartoon films. Master animators would draw key frames of the film, then, junior animators would draw the in-between frames. This is called inbetweening or tweening and the overall process is called "key frame animation". To make these motions appear realistic, interpolation algorithms have been sought ...
Frame rate, most commonly expressed in frame/s, frames per second or FPS, is typically the frequency (rate) at which consecutive images are captured or displayed. This definition applies to film and video cameras , computer animation , and motion capture systems.
Comparison of a slow down video without interframe interpolation (left) and with motion interpolation (right) Motion interpolation or motion-compensated frame interpolation (MCFI) is a form of video processing in which intermediate film, video or animation frames are generated between existing ones by means of interpolation, in an attempt to make animation more fluid, to compensate for display ...
Sophisticated animation software enables the animator to specify objects in an image and to define how they should move and change during the tweening process. The software may be used to manually render or adjust transitional frames by hand or may be used to automatically render transitional frames using interpolation of graphic parameters.
Computer-generated animation is an umbrella term for three-dimensional animation, and 2D computer animation. These also include subcategories like asset driven , hybrid, and digital drawn animation. Creators animate using code or software instead of pencil-to-paper drawings.
Coordinate systems used to control surface deformation (via Weight maps) during skeletal animation. Typically stored in a hierarchy, controlled by key frames, and other procedural constraints. Bounding box One of the simplest type of bounding volume, consisting of axis-aligned or object-aligned extents. Bounding volume
Onion skin of frame 7 of this image showing previous 3 frames. In 2D computer graphics, onion skinning is a technique used in creating animated cartoons and editing films to view several frames at once. This way, the animator or editor can make decisions on how to create or change an image based on the previous image in the sequence.