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Tch
Account closed
Registered: Sep 2004
Posts: 512 |
Anti-Aliasing
I thought I understood but I am confused again.
What the hell is Anti-aliasing? |
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Oswald
Registered: Apr 2002
Posts: 5022 |
mace,
your anti aliasing definition is laughable.
your dithering definition is somewhat applyable to error diffusion algorythms, but still horribly wrong. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Some good definitions from Wikipedia:
"anti-aliasing is the technique of minimizing aliasing (jagged or blocky patterns) when representing a high-resolution signal at a lower resolution."
"Dithering is a technique used in computer graphics to create the illusion of color depth in images with a limited color palette (color quantization)."
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Jetboy
Registered: Jul 2006
Posts: 217 |
Lol!
"Change in pixel contour" That's a good one!
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Helm
Account closed
Registered: Jul 2006
Posts: 25 |
Anti-Aliasing can mean different things, and does, in different contexts: in programming it's a different thing (and applies to a lot of stuff, not just digital graphics, but also sound and whatnot). In Pixel Arty terms, Hand-made AntiAliasing (most people I know just call it AA since we almost never mean automatic AA when we speak of it) is the process of buffering with one shade or more, between two others to eliminate sharp transitions.
The reason this has to be done is that unlike natural media, the smallest picture element in a piece of digital art is of finite size and that size can sometimes on some platforms (like the c64) be quite large, and therefore jaggies which some consider aesthetically damaging appear. By putting transitional pixels around the various curves, a sub-pixel smoothness effect is succesfully faked. |
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Mace
Registered: May 2002
Posts: 1799 |
Quote: mace,
your anti aliasing definition is laughable.
your dithering definition is somewhat applyable to error diffusion algorythms, but still horribly wrong.
Oswald, is it really necessary for you to insert those heavily subjective adjectives to the point where it almost could be interpreted as flaming? :'( |
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ptoing
Registered: Sep 2005
Posts: 271 |
He is right tho. Take it like a man! |
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algorithm
Registered: May 2002
Posts: 702 |
may be offtopic slightly, antialiasing seems to mimic subpixels (eg darker colors seem smaller, etc) to smooth the 'staircase' effect when put in these corners, Were there any examples of (for example) silky smooth scrolling at slower speeds by utilising antialiasing methods.
eg frame 1 would have the scroll text, frame two would have the scrolltext in roughly the same place, but utilising various darkness/lightness etc to simulate that the image has moved a sub pixel, etc |
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ptoing
Registered: Sep 2005
Posts: 271 |
I think this would look shit for anything but text unless you are on extreme high resolutions
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algorithm
Registered: May 2002
Posts: 702 |
not really.. Provided there are enough colors, smooth scrolling for any image can be achieved. (eg movement on DVD/VCD films, etc
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ptoing
Registered: Sep 2005
Posts: 271 |
well that's I can see, but on the c64 i think it would look ass in games for example. |
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