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Parallax scrolling is a technique in computer graphics where background images move past the camera more slowly than foreground images, creating an illusion of depth in a 2D scene of distance. [1] The technique grew out of the multiplane camera technique used in traditional animation [ 2 ] since the 1930s.
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 side-scrolling format was enhanced by parallax scrolling, which gives an illusion of depth. The background images are presented in multiple layers that scroll at different rates, so objects closer to the horizon scroll slower than objects closer to the viewer. [7] Some parallax scrolling was used in Jump Bug. [8]
The game uses three-layer, horizontal, parallax scrolling. A file contained with the shareware version of the game urged people not to download it if their computers could not handle it. The game was written with 24,500 lines of code. [5] The game supports AdLib music, but sound effects are generated by the PC speaker.
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The first isometric game to be released internationally was Sega's Zaxxon, which was significantly more popular and influential; [9] [10] it was released in Japan in December 1981 [11] and internationally in April 1982. [8] Zaxxon is an isometric shooter where the player flies a space plane through scrolling levels. It is also one of the first ...
Scrolling shooters include vertical, horizontal, and multidirectional scrolling games. In a horizontally scrolling shooter (sometimes called a horizontal shooter or side-scrolling shooter ), the action is viewed from the side and scrolls right-to-left, left-to-right, or both.
Adaptive tile refresh is a computer graphics technique for side-scrolling video games.It was most famously used by id Software's John Carmack in games such as Commander Keen to compensate for the poor graphics performance of PCs in the early 1990s.