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Rasterisation
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== Quality == [[File:Line pixel subpixel aa.gif|thumb|right|Pixel precision (left) vs sub-pixel precision (middle) vs anti-aliasing (right)]] The quality of rasterization can be improved by [[spatial anti-aliasing|antialiasing]], which creates "smooth" edges. [[sub-pixel resolution|Sub-pixel precision]] is a method which takes into account positions on a finer scale than the pixel grid and can produce different results even if the endpoints of a primitive fall into same pixel coordinates, producing smoother movement animations. Simple or older hardware, such as [[PlayStation 1]], lacked sub-pixel precision in 3D rasterization.<ref>{{cite web |title=PlayStation rasterization issues |url=https://www.libretro.com/index.php/mednafenbeetle-psx-pgxp-arrives/#more-45256 |website=Libretro |date=4 October 2016 |access-date=19 April 2020}}</ref>
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