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Therefore, CGA scrolling is done in software, by redrawing the entire screen for every frame, which such systems lack the performance to do for full-screen animation. Adaptive tile refresh minimizes the computing power required for sidescrolling games, to be within the reach of contemporary hardware.
Scrolling can be controlled in other software-dependent ways by a PC mouse. Some scroll wheels can be pressed down, functioning like a button. Depending on the software, this allows both horizontal and vertical scrolling by dragging in the direction desired; when the mouse is moved to the original position, scrolling stops.
The scroll wheel on a mouse has been invented multiple times by different people unaware of the others' work. Other scrolling controls on a mouse, and the use of a wheel for scrolling both precede the combination of wheel and mouse. The earliest known example of the former is the Mighty Mouse prototype developed jointly by NTT, Japan and ETH Zürich, Switzer
Examples of horizontal and vertical scrollbars around a text box Examples of vertical scrollbar at right end of Wikipedia home page. A scrollbar is an interaction technique or widget in which continuous text, pictures, or any other content can be scrolled in a predetermined direction (up, down, left, or right) on a computer display, window, or viewport so that all of the content can be viewed ...
Modern scroll wheel on 5-button mouse. (2008) Eric Michelman, a graduate from MIT, is credited with inventing the now commonplace computer input device known as the scroll wheel. Scroll wheels are most often located between the left and right-click buttons on modern computer mice.
In its original design, Scroll Lock was intended to modify the behavior of the arrow keys. When the Scroll Lock mode is on, the arrow keys scroll the contents of a text window instead of moving the cursor. [1] [2] In this usage, Scroll Lock is a toggling lock key like Num Lock or Caps Lock, which have a state that persists after the key is ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 12 January 2025. System to display a view of a 3D virtual world Virtual camera system demo showing parameters of the camera that can be adjusted Part of a series on Video game graphics Types 2.5D & 3/4 perspective First-person view Fixed 3D Full motion video based game Graphic adventure game Isometric ...
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