What Is Text Rendering

Text rendering is the process of converting a string to a format that is readable to the user. Text shaping, including complex text layout, for languages where characters change shape depending on context.

How does text rendering work?

The process of transforming font outlines into pixels is called rasterization. The operating system’s text-rendering engine places the outline (ie the shape) of each character at the desired font size on a pixel grid. Next, it colours all the pixels whose centre is inside the outline (see image below).

What is text rendering in HTML?

The text-rendering property in CSS allows you to choose quality of text over speed (or vice versa) allowing you to fine tune optimization by suggesting to the browser as to how it should render text on the screen. However, Gecko/WebKit/Blink browsers let you apply this property to HTML elements.

What is the text rendering protocol?

TEXT RENDERING PROTOCOL. PURPOSE: To collaboratively construct meaning, clarify, and expand our thinking about a text or document.

How do I write text in OpenGL?

Thanks to GLUT, you can very easily and quickly print text on the OpenGL window. Include the necessary headers: #include <GL/glut.h> Measure up your string. Place text in the screen: Set the text colour using glColor3f() , for instance: Display text:.

What is font antialiasing?

So, what is anti-aliasing? The simple description of anti-aliasing is that it makes fonts display with smooth curves and angles, not jagged, low res looking edges. So if “anti-aliased ” is smooth, the opposite, hard edged fonts would make sense to be called “aliased.” However, the better term is “bit-mapped.”Aug 10, 2016.

What is hinting and anti-aliasing?

Font hinting (also known as instructing) is the use of mathematical instructions to adjust the display of an outline font so that it lines up with a rasterized grid. It can be accompanied by antialiasing and (on liquid crystal displays) subpixel rendering for further clarity.

What is the use of text rendering in CSS?

The text-rendering CSS property provides information to the rendering engine about what to optimize for when rendering text. The browser makes trade-offs among speed, legibility, and geometric precision. Note: The text-rendering property is an SVG property that is not defined in any CSS standard.

What can I use CSS?

With CSS, you can control the color, font, the size of text, the spacing between elements, how elements are positioned and laid out, what background images or background colors are to be used, different displays for different devices and screen sizes, and much more!.

What do you mean by rendered?

1 : to transmit to another : deliver. 2 : to furnish for consideration, approval, or information: as. a : hand down render a judgment. b : to agree on and report (a verdict) — compare enter. 3 : to give in acknowledgment of dependence or obligation : make payment of.

What is glFlush in OpenGL?

glFlush() empties all commands in these buffers and forces all pending commands will to be executed immediately without waiting buffers are full. Therefore glFlush() guarantees that all OpenGL commands made up to that point will complete executions in a finite amount time after calling glFlush().

What are the different font types used in Glutbitmapcharacter method?

The available fonts are: GLUT_BITMAP_8_BY_13. A fixed width font with every character fitting in an 8 by 13 pixel rectangle. The exact bitmaps to be used is defined by the standard X glyph bitmaps for the X font named: -misc-fixed-medium-r-normal–13-120-75-75-C-80-iso8859-1.

What is the use of glFlush () function?

The glFlush function empties all these buffers, causing all issued commands to be executed as quickly as they are accepted by the actual rendering engine. Though this execution may not be completed in any particular time period, it does complete in a finite amount of time.

How do you smooth out text?

Open the Control Panel. Double-click the Display icon. In the Display menu, click the Effects tab, and then check the box on smooth edges on-screen fonts. After that, click Apply, and then click Ok.

What is signal aliasing?

In signal processing and related disciplines, aliasing is an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled. Aliasing can occur in signals sampled in time, for instance digital audio, and is referred to as temporal aliasing.

How do subpixels work?

Subpixel rendering works by increasing the luminance reconstruction points of a color subpixelated screen, such as a liquid crystal display (LCD) or organic light-emitting diode (OLED) display. This thumbnail image is downsized and does not show the technique. Click to see the full-size image.

Is font hinting necessary?

Hinting is an essential part of the production of a quality font. It is indispensable in every font intended to be legible at small sizes on low resolution output devices.

How are fonts rasterized?

Font rasterization is the process of converting text from a vector description (as found in scalable fonts such as TrueType fonts) to a raster or bitmap description. This often involves some anti-aliasing on screen text to make it smoother and easier to read.

What is pixel hinting?

Pixel hinting involves moving the vector’s anchor points to rest on pixel borders in a more aesthetically pleasing way. Making those straight lines more perfect, while still leaving the half-pixels to the curves.

How do you stop text selection in CSS?

To disable text selection highlighting in Google Chrome browser using CSS just set -user-select CSS property to none.

How do I reduce the space between letters in CSS?

Defines the spacing between the characters of a block of text. default letter-spacing: normal; The spacing between the characters is normal. letter-spacing: 2px; You can use pixel values. letter-spacing: 0.1em; You can use em values: this allows the spacing to remain relative to the font-size.

How do you indent with CSS?

You can use the CSS text-indent property to indent text in any block container, including divs, headings, asides, articles, blockquotes, and list elements. Say you want to indent all div elements containing text on a page to the right by 50px. Then, using the CSS type selector div, set the text-indent property to 50px.