tweening

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tweening

(graphics)
An interpolation technique where an animation program generates extra frames between the key frames that the user has created. This gives smoother animation without the user having to draw every frame.

A scene is described by a mathematical model - a set of two- or three-dimensional objects whose positions in are given by sets of coordinates. Tweening uses mathematical formulae to generate these coordinates at a sequence of discrete times. The simplest system would move each point at a constant rate in a straight line between its initial and final positions, though other kinds of path are possible. The coordinates at each time step are used to generate (or "render") a two-dimensional image of the scene which forms one "frame" of the animation.

Tweening is similar to morphing except that morphing is usually performed by interpolating between corresponding points marked by the user on two images, rather than between two configurations of a model.

tweening

An animation technique that, based on starting and ending shapes, creates the necessary "in-between" frames. See morphing.
References in periodicals archive ?
NEW YORK -- Growing their customer base is vital to mass retailers, and the burgeoning tween demographic provides a key source of attracting new shoppers to their beauty aisles.
As tweens age and become more independent they develop their own unique oral care needs," says P&G brand manager Kelly Heaps.
In previous in vitro studies, the nonionic surfactant Tween 80 increased numbers of viable bacteria (Akin, 1980), microbial growth rates (Lee et al.
The most popular site for tweens was Skype (used by 28 percent), but children were also using Instagram, according to the survey of 500 youngsters geographically representative of Australia's online population.
NEW YORK -- For the past few years retailers and suppliers in the beauty care business have been carefully towing the line with marketing to tweens.
Cell phones are becoming increasingly common among younger teens and tweens.
For example, the average American tween (defined as 9-14 year olds), according to a Nickelodeon survey, has a TV in their bedroom (77%), cable or satellite access (50%), a video game system (59%), a DVD player (49%), and a computer connected to the Internet (22%) (Farhi & Frey, 2006).
The tween collection includes colored jeans (skinny and bootcut), shorts, knit tops, graphic tee-shirts, as well as leggings, shrunken knits and hoodies.
Lip gloss and balm are the most widely used cosmetics by tween girls--78% of girls 12-14 use these products, according to Mintel--and the most heavily licensed.
The paper aims to explore this trendon the Romanian market, of advertising featuring more and more children and tweens in the attempt to increase likeability and emotional response from consumers along with identifying the product categories or services most likely to benefit from this type of commercials.
Non ionic surfactant, Tween 80, has been used as a feed additive to improve rumen environment and animal productivity.
The most commonly used product is lipgloss, with six in ten tween girls using it at least once a month.