Trimatė kompiuterinė grafika

Kompiuterio sugeneruotas vaizdas su trimačiais objektais

Trimatė (3D) kompiuterinė grafika – kompiuterinės grafikos šaka, kuri vaizduojamojo skaičiavimo tikslams naudoja geometrinių duomenų, saugomų kompiuteryje, trimatį atvaizdavimą. Tokie vaizdai gali būti saugomi su tikslu juos peržiūrėti vėliau arba atvaizduoti realiu laiku.

3D kompiuterinė grafika remiasi daugeliu tų pačių algoritmų kaip ir karkasinio modelio 2D kompiuterinė vektorinė grafika bei pilnai atvaizduota 2D kompiuterinė rastrinė grafika. Kompiuterinės grafikos programinėje įrangoje skirtumas tarp 2D ir 3D retkarčiais yra neryškus; 2D aplikacijose gali būti naudojamos 3D technologijos įvairiems efektams, tokiems kaip apšvietimas, pasiekti, o 3D aplikacijose gali būti panaudojami 2D atvaizdavimo būdai.

3D kompiuterine grafika dažnai vadinami 3D modeliai. Tačiau esama skirtumų. Modelis, be jį atvaizduojančios grafikos, yra saugomas grafinių duomenų rinkmenoje. 3D modelis yra bet kokio trimačio objekto matematinė reprezentacija. Pats modelis formaliai nėra grafika tol, kol nėra atvaizduojamas. Modelis gali būti atvaizduotas kaip dvimatis vaizdas panaudojant vadinamąjį 3D generavimo procesą, arba panaudotas negrafiniame kompiuteriniame modeliavime ir skaičiavimuose. 3D spausdinime panašiai virtualūs modeliai yra sugeneruojami į apytikslio tikslumo trimatę fizinę reprezentaciją.[1]

Šaltiniai

  1. ↑ „3D computer graphics“. ScienceDaily (anglų). Nuoroda tikrinta 2019-01-19.

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