Anisotropic Ukuhlunga. ukusetshenziswa Engokoqobo Yezindaba izandiso: zokuhlunga anisotropic

zokuhlunga Anisotropic ingenye izakhi ihluzo yesimanje, okwenza abasebenzisi abaningi ukukhuluma mayelana namuhla kwenziwe kutholakale ezihlukahlukene image isithuthukisi ubuchwepheshe kubasebenzisi kanjani.

Akubalulekile ukufihla iqiniso lokuthi kubalulekile ukuze abadlali namuhla kakhulu eliphezulu ihluzo ngakuthathu, futhi ngiwo namuhla cishe amakhasimende kuphela zonke izinhlobo ezintsha zobuchwepheshe emkhakheni ihluzo amakhadi. Phela, ephezulu amandla namafutha okwamanje kungenziwa kuphela edingekayo uma kwenzeka ukuthi udinga ukusebenzisa ezinye umdlalo wokugcina-isizukulwane, lapho kukhona ngempela afune izinto ngenkani kwabanye injini ezisebenza shaders eyinkimbinkimbi izinguqulo ezihlukahlukene.

Yiziphi amabalazwe?

Ingabe ezinye injini overdeveloped esikhathini sethu - kuwukuchitha sina kwezinsiza. Futhi ngesikhathi esifanayo ingozi enkulu. Lezi zindlela zisebenzisa kuphela amaphrojekthi ephezulu isabelomali emikhulu ukukhangisa, okuyinto kusengaphambili, ngisho nangaphambi ukukhululwa kwabo, beqiniseka ukuthi umdlalo uzobe ngenkuthalo uzokhukhula kusukela emashalofini. Futhi inothi Kuyaphawuleka ukuthi eminyakeni yamuva ngokukhethekile "ezombusazwe" on the yesimanje game injini, ngoba emkhakheni ukuthuthukiswa umdlalo kudala kukhona inqubomgomo uncamela acabangele timfuno izinkampani ezimbili okuholela emkhakheni ihluzo izilimi - is NVIDIA futhi ATI.

Le nkampani isikhathi eside ukuncintisana nomunye, futhi eqinisweni alikho ithemba ukuthi esikhathini esizayo esiseduze ke uyokwazi ukuqeda le ngxabano, kodwa abathengi kuba kuphela ususondele. Manje-ke akwanele ukuthuthukisa injini ngempela eliphezulu, futhi udinga ukuba acele ukusekelwa omunye abakhiqizi, ngubani ngisho akha yabo lobulungu siqu for igrodelov.

NGESIKHATHI UFUNDA Isheduli luyakhula futhi likhula ...

Yenza inguquko ngokuphelele emkhakheni 3D-ihluzo izinjini kunzima, zaze linemibhikisho iyivelakancane. Nokho, kulesi simo, yebo, ikhwalithi yesithombe kuyathuthuka ngezikhathi ngokuhamba kwesikhathi, Isimanga siwukuthi, kwenzeka ngaphansi nje uphume ethile "Ukuthengisa" imidlalo efana Crysis.

Kusekelwe ukucwengwa anisotropic, kanye nalokho okuthiwa anti-aliasing Kwenziwa namuhla ukukhululwa kwe lenqwaba ezahlukene isiqophi abashayeli nomkhiqizi ngamunye, kanye nenkampani ngayinye has indlela yayo nezinqubomgomo mayelana nalesi nokwenza kahle, okuyinto kaningi nje alulona olwawo wonke umuntu.

Kuyini zokuhlunga anisotropic?

Anisotropic Ukuhlunga - indlela ekhethekile ekuthuthukiseni ukwakheka ezindaweni ukuthi kukhona engela ezithile isihlobo ukuba ikhamera. Ngokufanayo njengoba bilinear noma trilinear, anisotropic ivumela ukuqeda aliasing ezindaweni ezahlukene, kodwa wethula ubuncane ukufiphala, kanjalo ugcina abekelwe emaceleni imininingwane yesithombe.

Kuyaphawuleka ukuthi imidlalo zokuhlunga anisotropic luyasetshenziswa esebenzisa ukubala eziyinkimbinkimbi, ngaleyo ndlela linikeze "nokubukisa" elincane izilungiselelo emidlalweni laligujwa kuphela kusukela ngo-2004.

Ukuze uzwisise ukuthi yini zokuhlunga anisotropic, kudingeka babe nolwazi oluyisisekelo kule ndawo. Yiqiniso, namuhla umsebenzisi ngamunye uyaqonda ukuthi isikrini yakhiwa eziningi Amaphikseli ezahlukene, ogama inombolo incike isinqumo ngqo. Ukuze sibonise isithombe esikrinini ihluzo alunge umbala kwe-pixel ngayinye.

Umgomo we operation

Khetha ukuthungwa ezithile, elihambisana isinqumo, esemgwaqweni yonkana isiqondiso isibuyekezo. Ngemva kwalokho, kuthatha texels bambalwa eduze isiqondiso wokubuka, kulandele alinganiselwa kube nombala wako.

Kusukela kwesikrini kungaba ezingaphezu kweyodwa ayisigidi, futhi texel ngamunye kuleli cala akuyona esingaphansi 32 izingcezu, anisotropic zokuhlunga imidlalo adinga komkhawulokudonsa eliphezulu ngokwedlulele video amakhono, okuyinto unganikezi eziningi ngisho kumadivayisi esimanjemanje kakhulu. Kungenxa yalesi sizathu ukuthi izidingo inkumbulo ezinkulu ezifana ziyancipha ngokusebenzisa enqolobaneni, kanye ezikhethekile ukuthungwa kokucindezelwa ubuchwepheshe.

Isebenza kanjani?

Ukunqunywa umbala Amaphikseli Kwenziwa ngokusebenzisa kuya ngemapholigoni textured isithombe ehlanganisa Amaphikseli isithombe ntathu - texels, okuyinto esikhulu 3D-surface. Yilokho kanye Inkinga eyinhloko kulesi simo ukuthi texels eyonquma umbala i-pixel ye esikrinini. Ukuze uqonde kangcono izici ezihlukanisa zokuhlunga anisotropic, kudingeka sicabange ngalokho isikrini sakho - kungcono isitofu esikhulu, okukhona ezihlukahlukene izimbobo, ngamunye elimelela ngephikseli.

Ukuze ubone ukuthi umbala ngephikseli ku scene ngakuthathu okuyinto ngemuva isitofu, kumane ngokwanele ukubheka emgodini okuhambisanayo. Manje zicabange ugongolo ukukhanya sidlula ke, bese uthola emhlabathini wethu, futhi uma uzobe elise parallel ngokuphathelene nendawo yabo zokungena, kulesi simo, uthole indawo round yokukhanya. Uma kungenjalo, ibala uzobe kancane ehlanekezelwe isb. E. Ingabe kakade i ukuma okweqanda. It ngemapholigoni ezibekwe endaweni ukukhanya, futhi ngeke ukunquma umbala ngamunye kwe-pixel ngabanye.

Kuqakatheke ngani?

Abantu abaningi bakholelwa ukuthi zokuhlunga anisotropic isetshenziswa kuphela ukuze ahlinzeke ikhwalithi yesithombe kangcono, kodwa eqinisweni kungcono nje umphumela, okuyinto Ilungiselelwe akuyona kuphela ngenxa filtration uqobo.

Lapho ukwakha ethile yesithombe ukuthungwa program inikezwe ezimbili-level ukuthungwa zokuhlunga ukuthi izihlungi amele okungenani kanye amabanga esiphezulu ukuthi kunqunywe ukuthi yiziphi ethize lemifanekiso umsebenzi isetshenziswa inqubo obumba ukuthungwa isithombe kunjalo, uma ikhamera uyahamba noma abeza.

Ngokwesibonelo, omunye ungase ucabangele lapho trilinear noma anisotropic zokuhlunga isetshenziswa isilinganiselo, isb uma texel ngamunye uqala Ubukhulu esikhulu kakade ihlanganisa Amaphikseli amaningi. Ukuze ususe kule aliasing isimo futhi okufika lizosetshenziswa. Kufanele kuqashelwe ukuthi usesimweni esinjalo, lesi sisombululo ikude elilungile nokuhlunga (anisotropic noma trilinear) blurs isithombe kancane. Ukuze unikeze nombono ongokoqobo ngokubukeka isithombe, ngeke zidinga okwandisa isinqumo isakhiwo.

Kanjani engikukhethayo?

Yiqiniso, noma imuphi umsebenzisi futhi abadlala abavamile kukhona ngempela umbuzo okunengqondo. Namuhla kukhona zokuhlunga tri-eqondile futhi anisotropic - yini kangcono? Eqinisweni, kangcono, Yiqiniso, kuba ubuchwepheshe anisotropic. Into wukuthi zokuhlunga tri-eqondile akuyona efanele kakhulu sinquma umbala texel ngamunye, futhi yini ukunemba kakhudlwana, lenzani okungalungile ukuze amathemba akhe, uma sikhuluma izindiza ezintweni ezingafanele. Isicelo anisotropic ubuchwepheshe evumela Supplement okwamanje ezosetshenziselwa ukuhlunga izindlela, ukulungisa engela. Ngakho elikhulu engela, siyoba sikhulu izinga Nokubhekana Namaqiniso okuyinto bayakwazi ukuhlinzeka anisotropic ukuthungwa zokuhlunga. Nokho, ngesikhathi esifanayo kufanele siqonde ukuthi kuzothatha futhi isibalo esikhulu amakhadi yedatha ukucutshungulwa amandla.

Indlela kuyasiza?

Kufanele silindele ukuba ekugcineni, emva ukufakwa ihluzo ngakuthathu imisebenzi fabulously ngcono, ngaphezulu ngisho at engele eziphakemeyo Ukufiphalisa ethile etholwe, kodwa ngokuvamile yalokho, uthola isithombe esinembile ngaphezulu. Kule ndaba, kwaba yilowo nalowo ngenxa yena sikhululekile ukuzinqumela ukuthi kufanele usebenzise lesi futhi kuyoba njani ithele kuye.

Njengoba ngcono kakhulu izinga izithombe, lo msebenzi akuqinisekisi ukuthi labo bantu abazama ukukhulisa ukusebenza umdlalo ku hhayi computer anamandla kakhulu, ngifuna indlela ukukhubaza zokuhlunga anisotropic. Nezidingo lo msebenzi kuyinto incommensurate kancane kuqhathaniswa namuphi umphumela inikeza, ngakho-ke kuwufanele ngicabanga mayelana nendlela uyicime kuqala.

Point sokusampulwa

Point sokusampulwa namuhla limelela samuntu kakhulu elula kanjani umbala ngephikseli kunqunywa. Lokhu algorithm kusekelwe isithombe ukuthungwa, uma kukhethwa iyiphi texel olulodwa, etholakala eduze ngangokunokwenzeka ukuze maphakathi indawo ukukhanya. Akunzima ukuqagela ukuthi inketho okunjalo akuyona elilungile kakhulu, njengoba umbala i-pixel ye azimisele kanyekanye by texels amaningi, futhi akhethiwe kuleli cala, eyodwa kuphela, indawo ukukhanya Ungashintsha ezakheke, algorithm akusho acabangele.

I ethile eyinhloko, esibonakala zokuhlunga anisotropic ezinjalo, iqiniso lokuthi ngesikhathi ukusondela ngokwanele eduze kwesikrini inani Amaphikseli uzobe kukhuphuke kakhulu ngokuqhathaniswa ne isibalo texels, ukuze isithombe siba asinantshisekelo ngakho. Okubizwa ngokuthi umphumela ekuvimbeni kwabaningi ngokuvamile nasemkhakheni "ubudala" imidlalo yama-computer.