Talk:2D computer graphics

message: I agree with Wapcaplet (et al) about the need for a serious rewrite of this article.     I am by no means an expert on this and so can't do it for myself (not without a ton of research and I'm just not interested enough).
Also: this article has zero in-text references (minus the wikipedia links). This is a serious handicap for someone looking for further information.  PainMan 01:16, 16 July 2007 (UTC)
thread_title: Needs rewrite

message: I think this could start off a bit slower. Consider:
:The art of producing images on computer display, printer, or other output device. Usually involves treating the drawing area, or drawable, as a large grid of squares, which can be set to different colours. The dimensions of the grid is referred to as the 'resolution', which is also a characteristic of the output device itself. The image on screen is maintained in a special area of the computer's memory, sometimes called video RAM. (Link to article on computer displays.) Whereas displays originally simply held text (and so was character-oriented), computer graphics involves treating the video RAM, or buffer, as a more general array of individual pixels which can be turned on or off (in basic systems), set to a varying intensity (in monochrome displays), or to one of a palette of colours.
:As the resolution and colour fidelity increase, images appear more detailed. In modern displays, images displayed on computers are starting to rival photographic prints, at least to the casual observer.
:Once one has the ability to show an image -- that is, the ability to manipulate the state of the memory buffers which affect which pixels are lit on the screen, and with what intensities and/or colours -- the question is then a matter of what to show and how to show it. Moreover, simply displaying static images is comparatively easy compared to the job of letting users create images of their own. Even ignoring the introduction of externally produced images into the computer's memory using a scanning device or a digital camera, there are numerous ways in which to produce images in video RAM to be displayed on screen.
At that point, it would make sense to introduce the concept of simple drawing programs, as an introduction into the basics of some of the algorithms for producing images from primitives, like lines and shapes, and using fills, gradients, and such. Then introduce the idea of vectorized images, wherein the instructions for creating a drawing are preserved and can be modified in part in order to change the image, contrasted to "painting over" a pure raster image. The distinction should be clear between the idea that an image can exist in two forms: transient computer memory, and in files which record the image as pixel arrays or drawing instructions (or both), but the primary method of displaying a computer image is always through the raster display or printer.
It might also make sense to mention the use of 3D computer graphics in the production of 2D still images, especially ray tracing, but that can alternately be left to an improved 3D graphics article.
Brent Gulanowski 02:19, 12 Dec 2003 (UTC)
thread_title: Needs to start slower

message: This article is all about the technical aspects and techniques of 2D graphics, and doesn't mention any of the cultural aspects of 2D graphics, such as their historical and current popularity, especially in comparison to 3D graphics and other graphics rendering systems.  A link to a relevant article on those subjects, and/or section devoted to them would be appropriate.  Ziiv (talk) 08:31, 26 December 2009 (UTC)
replies: text: Are there any articles on such aspects of 2D computer graphics? — Frεcklεfσσt | Talk 12:01, 26 December 2009 (UTC)
thread_title: Just about technical

message: The first section of the article is no longer in english. I am pretty new to wikipedia so I am not sure if I am allowed to just undo it. Pratyush Sarkar (talk) 20:16, 25 December 2012 (UTC)
replies: text: I undid it. Seems fine now, but it might have to be touched up . No idea why it was changed in the first place.  71.246.119.35 (talk) 09:15, 27 December 2012 (UTC)
thread_title: Why was the first section translated?

message: 2D computer graphics#Geometry duplicates Translation (geometry) and Rotation (geometry). It could be remedied using template:excerpt. fgnievinski (talk) 17:55, 16 May 2022 (UTC)
thread_title:  Duplication