Cov nyhuv aliasing yog qhov pom ntawm cov npoo jagged lossis "jaggies" hauv cov duab rasterized(ib daim duab siv pixels). Qhov teeb meem ntawm jagged npoo technically tshwm sim vim distortion ntawm cov duab thaum scan conversion yog ua nrog sampling ntawm ib tug tsawg zaus, uas yog tseem hu ua Undersampling.
Dab tsi yog aliasing thiab anti-aliasing hauv computer graphics?
Aliasing yog qhov pom kev stair-stepping ntawm ntug uas tshwm sim hauv daim duab thaum qhov kev daws teeb meem tsawg dhau. Anti-aliasing yog qhov smoothing ntawm jagged npoo hauv cov duab digital los ntawm qhov nruab nrab ntawm cov xim ntawm cov pixels ntawm ib thaj tsam.
Yuav ua li cas alias ua piv txwv?
Aliasing: Aliasing yog hais txog qhov xwm txheej uas tib qhov chaw nco tuaj yeem nkag tau siv cov npe sib txawvPiv txwv li, yog tias ib txoj haujlwm siv ob lub pointers A thiab B uas muaj nqi ib yam, ces lub npe A[0] aliases lub npe B[0] i.e., peb hais tus pointers A thiab B alias ib leeg.
Vim li cas aliasing tshwm sim hauv cov duab?
Qhov no tshwm sim hauv cov duab ntawm txhua qhov chaw thaum tus qauv zaus poob qis dua qhov qub zaus, xws li: Thaum qhov kev ntxhib los mos raug txo qis vim nws tau saib los ntawm qhov deb. Mipmapping aims los kho qhov teeb meem no los ntawm low-pass pre-filtering textures thiab khaws cov ntawv luam hauv cov kev daws teeb meem qis.
Koj piav qhia li cas?
Hauv kev ua cov teeb liab thiab lwm yam kev qhuab qhia, aliasing yog ib qho txiaj ntsig uas ua rau cov cim sib txawv los ua qhov sib txawv tsis tau(lossis lwm tus neeg lub npe) thaum ua piv txwv.
