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This is a very technical explanation. I'd like to help put it into plain English, but don't want to get anything wrong. Howabout, for example: "It relies on replacing parts of one image with another. This is achieved by making transparent any part of the image which is a specified colour (e.g. green, blue, or black). This allows a second image to 'show through', creating a composite." --Rayray 11:34, 23 November 2005 (UTC)Reply
In my opinion, there ought to be (at least) two articles. One (this page) should be about compositing in relation to filmmaking, covering practical techniques and products. Another, currently alpha compositing, should focus on the theory (Porter-Duff, etc.), mathematics, and its relation to software and computer graphics. The audience of the first page would be the layman/filmmaker, and that of the second page a mathematician/computer scientist. Perhaps we should work to move the math to alpha compositing. --IanOsgood 04:02, 20 July 2006 (UTC)Reply
F:=(A*B)*(C*D)
is performed by the majority of compilers in the same order as {S:=A*B;F:=S*(C*D)}
. Although it is true that a parallel computer can perform each parenthesized expression in different processors, there are different parallel computer architectures, that should be taken into account when the algorithm is developed.This article shouldn't exist. Merge with Compositing. Create a section entitled "Digital" there, if you'd like, as that would be most appropriate.Clepsydrae (talk) 04:01, 4 January 2019 (UTC)Reply
γ is introduced without a description equivalent to the description for α, being "the opacity value of the foreground pixel" Hackwrench 07:22, 31 July 2006 (UTC)Reply
The article on compositing has been replaced with new material. Jim Stinson 23:16, 10 August 2007 (UTC)Reply
From the Article:
I very much doubt that linear light and gamma have much to do with aliasing here. How could this possibly lead to visibly jagged lines after compositing? Even if we were talking about rendering, I would expect that other effects (eg. light sources appearing too dark) will be much more visible. Also, the uninformed reader is tempted to assume that linear light is the most common choice for computer graphics. It should be made clear that this is not the case. --Matumio (talk) 18:08, 23 September 2008 (UTC)Reply