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ClearType does not work properly with flat-panel displays that are operated at resolutions other than their “ native ” resolutions, since only the native resolution corresponds exactly to the actual positions of pixels on the screen of the display.
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ClearType and does
Nor does ClearType affect text stored in files.
If a display does not have the type of fixed pixels that ClearType expects, text rendered with ClearType enabled actually looks worse than type rendered without it.
Unlike the ClearType in GDI or GDI +, WPF ClearType does not snap glyphs to pixels horizontally, leading to a loss of contrast disliked by some users.
The sans-serif fonts within the ClearType Font Collection introduced in Windows Vista typefaces have true italic versions, as does the older Trebuchet MS typeface.
ClearType and work
ClearType and similar technologies work on the theory that variations in intensity are more noticeable than variations in color.
Consolas is a departure in the realm of Windows programming fonts because it is designed to work with a specific form of font antialiasing, specifically Microsoft's ClearType technology.
ClearType and with
For example, text in Microsoft Word will be rendered on the screen with ClearType enhancement, but text placed in a bitmapped image in a program such as Adobe Photoshop will not be modified.
Text rendered with ClearType looks “ smoother ” than text rendered without it, provided that the pixel layout of the display screen exactly matches what ClearType expects.
( a ) text rendered without ClearType and ( b ) text rendered with ClearType
An extreme close-up of a color display shows ( a ) text rendered without ClearType and ( b ) text rendered with ClearType.
( a ) text rendered without ClearType and ( b ) text rendered with ClearType
According to MSDN website, Microsoft acknowledges that " ext that is rendered with ClearType can also appear significantly different when viewed by individuals with varying levels of color sensitivity.
Text without rendering ( upper portion ) and text with ClearType rendering ( lower portion )
In the above block of text, the same portion of text is shown in the upper half without and in the lower half with ClearType rendering ( as opposed to Standard and ClearType in the previous image ).
Whether ClearType, or other rendering, should be used is very subjective and it must be the choice of the individual, with the report recommending " to allow users to disable if they find it produces effects other than improved performance ".
ClearType and allied technologies require display hardware with fixed pixels and subpixels.
ClearType needs to be manually tuned for use with such displays ( see below ).
Apple's rendering approach on Mac OS X ignores almost all the hints in a TrueType font, while Microsoft's ClearType ignores many hints, and according to Microsoft, works best with " lightly hinted " fonts.
Expression Blend supports the WPF text engine with advanced OpenType typography and ClearType, vector-based 2D widgets, and 3D widgets with hardware acceleration via DirectX.
As with other Sans Serif ClearType Collection fonts, it includes unique italic type features, which are common in modern typefaces.
ClearType and displays
ClearType uses spatial anti-aliasing at the subpixel level to reduce visible artifacts on such displays when text is rendered, making the text appear " smoother " and less jagged.
The hinting expert Beat Stamm, who worked on ClearType at Microsoft, agrees that ClearType may look blurry at 96 dpi, which was a typical resolution for LCDs in 2008, but adds that higher resolution displays improve on this aspect:
Displays that have no fixed pixel positions, such as shadow mask CRT displays, may be harder to read if ClearType is enabled.
Subsequent advances in technology have introduced first anti-aliasing, which smooths the edges of fonts at the expense of a slight blurring, and more recently subpixel rendering ( the Microsoft implementation goes by the name ClearType ), which exploits the pixel structure of LCD based displays to increase the apparent resolution of text.
ClearType and are
Other graphic display elements ( including text that has already been converted to bitmaps ) are not altered by ClearType.
When the elements of a type character are smaller than a full pixel, ClearType lights only the appropriate subpixels of each full pixel in order to more closely follow the outlines of the character.
Note the changes in subpixel intensity that are used to increase effective resolution when ClearType is enabled — without ClearType, all sub-pixels of a given pixel have the same intensity.
Microsoft has heavily marketed ClearType, and sub-pixel rendering techniques for text are now widely used on all platforms.
The notable features of Microsoft Reader are ClearType for increased readability on small screens, highlighting and doodling designed for quick note-taking, text notes, and searching.
ClearType and at
ClearType was first announced at the November 1998 COMDEX exhibition.
Dick Brass, a Vice President at Microsoft from 1997 to 2004, complained that the company was slow in moving ClearType to market in the portable computing field.
According to a study at the University of Texas, ClearType " may not be universally beneficial ".
* Microsoft ClearType Font Collection at Microsoft Typography
* Microsoft ClearType Font Collection at Microsoft Typography
* Microsoft ClearType Font Collection at Microsoft Typography
Segoe UI is optimized for Vista's default ClearType rendering environment, and it is significantly less legible when ClearType is disabled, except at key user interface sizes ( 8, 9 and 10 point ) where Segoe UI has been hinted for bi-level rendering.
ClearType and other
Like most other types of subpixel rendering, ClearType actually involves a compromise, sacrificing one aspect of image quality ( color or chrominance detail ) for another ( light and dark or luminance detail ).
ClearType and only
ClearType is applied only to text that is rendered as such by user and system applications.
ClearType only applies any processing to the text while it is being rendered onto the screen.
ClearType and pixels
Most printers already use such small pixels that aliasing is rarely a problem and, in any case, they don't have the addressable fixed subpixels ClearType requires.
ClearType assumes this arrangement of pixels when rendering text.
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