Difference between revisions of "Glossary:Anti-aliasing (AA)"
Doctor roxo (talk | contribs) m |
Hungry eyes (talk | contribs) m (moved stub template) |
||
| Line 1: | Line 1: | ||
| + | {{stub}} | ||
| + | |||
==General== | ==General== | ||
Anti-aliasing (AA) is a computer graphics technique that attempts to minimise the unwanted "staircase" or "jaggy" effects which occur due to the limited resolution in 3D-Renderers. They also increase the texture quality in some cases. | Anti-aliasing (AA) is a computer graphics technique that attempts to minimise the unwanted "staircase" or "jaggy" effects which occur due to the limited resolution in 3D-Renderers. They also increase the texture quality in some cases. | ||
| Line 28: | Line 30: | ||
[[Category:Guide]] | [[Category:Guide]] | ||
[[Category:Graphics]] | [[Category:Graphics]] | ||
| − | |||
| − | |||
Revision as of 21:38, 18 April 2012
General
Anti-aliasing (AA) is a computer graphics technique that attempts to minimise the unwanted "staircase" or "jaggy" effects which occur due to the limited resolution in 3D-Renderers. They also increase the texture quality in some cases.
There are a number of anti-aliasing techniques today but all of them are based on the same principle. They simply render multiple pixels per pixel of the final image.
The techniques only differ on two factors:
- How they determine which pixels are aliased.
- How they "mix" the multiple rendered pixels to get the final pixel.
These algorithms are also variable on how many pixels they use to determine one final pixel. In video games this is represent by a simple number which is a power of 2 like 2x, 4x, 8x etcetera.
Comparison
| No anti-aliasing | 16x anti-aliasing |
|---|---|
 |
|
In video games
Anti-aliasing improves the general graphics quality but lowers the frame rate quite significantly. Lowering or disabling the anti-aliasing effect is a good way to improve the overall frame-rate.
An anti-aliasing setting is present in most PC games. If its not available in a specific title, it is usually possible to force it via the graphics card driver or a mod/hack.