Digital differential analyzer (graphics algorithm): Difference between revisions

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{{About|a graphics algorithm|the digital implementation of a differential analyzer|Digital differential analyzer}}

In [[computer graphics]], a '''[[digital differential analyzer]]''' ('''DDA''') is hardware or software used for [[interpolation]] of [[Variable (computer science)|variables]] over an [[Interval (mathematics)|interval]] between start and end point. DDAs are used for [[rasterization]] of lines, triangles and polygons. They can be extended to non linear casesfunctions, such as [[texture mapping#Perspective correctness|perspective correct texture mapping]], [[quadratic curves]], and [[voxel]] landscapes (with limited camera rotation). The are also known as [[incremental error algorithm]]s.

<ref>{{cite web|title=DDA for landscape rendering - "voxel space"|url=http://simulationcorner.net/index.php?page=comanche}}</ref>