<aside> 💫 Aliasing is a result of sampling, which is the process of converting continuous data (like a curve or a line in the real world) into discrete data (pixels on a screen).
When the resolution of the display or the image is not high enough to capture all the details of this continuous data, the resulting digital representation can miss some of the nuances of the shape or pattern.
Example: A pixel on a screen is a small square or rectangle, and it can only display one color at a time. When trying to represent a smooth edge or curve, the square pixels can only approximate the shape, which leads to the jagged appearance known as aliasing.
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| Name | Core Idea | |
|---|---|---|
| MSAA | Multisampling Anti-Aliasing | * uses multiple sample points instead of a single sampling point for determining coverage of the triangle |
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Antialiasing is a technique used in computer graphics to remove this aliasing effect. The aliasing effect is the appearance of jagged edges or “jaggies” in a rasterized image.
Cause of anti-aliasing is Undersampling. Undersampling results in loss of information of the picture.
The effect of clearly seeing the pixel formations an edge is composed of, is called aliasing. Observation of aliasing effect**: jagged saw-like patterns along the edges**
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