Anti-aliasing techniques smooth jagged game graphics but vary in performance cost
Computer games use various anti-aliasing methods to fix stair-step patterns on curved edges.
Methods tackle rough pixel edges
Games represent curved lines on a grid of square pixels. This process often results in stair-step patterns known as jaggies. Several techniques exist to smooth these rough edges.
Techniques use different sampling approaches
Some methods ask the graphics processor to compute additional samples. Others filter the image after it has been rendered. Newer temporal techniques use information from previous frames.
Performance trade-offs are common
These options usually involve a compromise such as lower frame rates. Users might also see softer details or occasional ghosting effects. Supersampling renders the image at a higher resolution before downsampling it.
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