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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.
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight and is measured by the angle or half-angle of inclination between those two lines. [1] [2] Due to foreshortening, nearby objects show a larger parallax than farther objects, so parallax can be used to determine distances.
Scrolling may take place in discrete increments (perhaps one or a few lines of text at a time), or continuously (smooth scrolling). Frame rate is the speed at which an entire image is redisplayed. It is related to scrolling in that changes to text and image position can only happen as often as the image can be redisplayed.
This creates a sense of parallax or depth. Various parts of the artwork layers are left transparent to allow other layers to be seen behind them. The movements are calculated and photographed frame by frame, with the result being an illusion of depth by having several layers of artwork moving at different speeds: the further away from the ...
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]
Parallax mapping, a 3D graphics rendering technique; Parallax Propeller, a 32-bit microcontroller with eight CPU cores; Parallax scrolling, a scrolling technique in computer graphics where the background content (for example, a background image of a website or app) is moved at a different speed than the foreground content while scrolling.
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A side-scrolling game or side-scroller is a video game in which the viewpoint is taken from the side, and the onscreen characters generally can only move, to the left or right. Games of this type make use of scrolling computer display technology, and sometimes parallax scrolling to suggest added depth.