![]() Each glyph in the font contains its own little hint program, with which the control points of the outlines can be manipulated just prior to rasterization in any way the hint programmer desires. Instead, they linked a relatively simple rasterizer to a new interpreted programming language. Its inventors, mindful of the diversity of opinion on the "correct" way to hint type, decided there was no single hinting paradigm that they would impose upon type developers. Hints attempt to correct this by equalizing the weights of stems, preventing parts of glyphs disappearing, and generally maintaining aesthetic appearance and legibility down to as low a resolution as is possible. At low device resolutions, undesirable rounding effects mean that parts of some characters can disappear, and other parts can appear too thin or too thick. In general, hinting consists of careful and usually small adjustments in the outline-filling process. Hinting is the name for the set of techniques for restoring, as far as possible, their aesthetics and legibility. The "mathematically correct" pixels for character outlines scaled to a given size and resolution are often unaesthetic or illegible. ![]() ![]() The problem, much more noticeable with scalable type than with other scalable graphics, reflects the high demands for visual consistency the eye makes on type. Ever since software developers and typographers were given the task of rendering scalable type on low-resolution devices, the hinting problem has been acknowledged.
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