Editing Scrolling (section)

{{Short description|Sliding motion vertically or horizontally over display devices}}
{{Other uses|Scroll (disambiguation)}}
{{Wiktionary}}
[[File:Parallax scrolling example scene.gif|thumb|[[Parallax scrolling]]]]
In [[computer display]]s, [[filmmaking]], [[television production]], [[video games]] and other kinetic displays, '''scrolling''' is sliding text, images or video across a monitor or display, vertically or horizontally. "Scrolling," as such, does not change the layout of the text or pictures but moves ([[panning (camera)|pans]] or [[Tilt (camera)|tilts]]) the user's view across what is apparently a larger image that is not wholly seen.<ref>{{Cite web|url=https://www.encyclopedia.com/science-and-technology/computers-and-electrical-engineering/computers-and-computing/scroll|title=Scroll|date=2009|website=Encyclopedia.com|access-date=23 February 2019}}</ref> A common television and movie special effect is to scroll credits, while leaving the background stationary. Scrolling may take place completely without user intervention (as in film credits) or, on an interactive device, be triggered by [[touchscreen]] or a keypress and continue without further intervention until a further user action, or be entirely controlled by [[input device]]s.

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. When frame rate is a limiting factor, one smooth scrolling technique is to blur images during movement that would otherwise appear to "jump".