Anisotropic Ukuhluza. ngokoqobo enezongezo: okuhlaba anisotropic

yokuhluza Anisotropic yenye izinto yemizobo yale mihla, nto leyo eyenza ukuba abasebenzisi abaninzi ukuthetha namhlanje ufumaneke iintlobo zobugcisa nophuculo umfanekiso kubasebenzisi ngayo.

Akukho mfuneko ukufihla into yokuba kubalulekile kakhulu nabadlala namhlanje kakhulu ezikumgangatho ophezulu mifanekiso-ntathu, kwaye ngabo abo namhlanje phantse kuphela abathengi zonke iintlobo iiteknoloji ezintsha kwi ebaleni amakhadi imizobo. Ngapha koko, aphezulu-power namafutha ngalo mzuzu engafunwa kuphela xa ufuna ezinye umdlalo wokugqibela-sizukulwana, apho kukho ifuna ngokwenene injini yokusebenza shaders ezintsonkothileyo iinguqulelo ezahlukeneyo.

Yintoni iimaphu?

Yenza injini esithile overdeveloped ngexesha lethu - yinto inkunkuma kakhulu kwezibonelelo. Kwathi ngelo xesha ingozi enkulu. Ezi ubuchule basebenzisa iiprojekthi-mali eliphezulu kuphela nentengiso ngomlinganiselo omkhulu, nto kwangaphambili, kanye phambi kokuba siyikhuphe, siqinisekile ukuba lo mdlalo uya ngokubonakalayo kutshayela kude ezishelfini. Kwakhona badumileyo kukuba kwiminyaka yakutshanje ingqalelo ekhethekileyo "ipolitiki" kwi-injini umdlalo mihla, kuba kwicandelo lophuhliso umdlalo kudala kukho umgaqo-nkqubo ukuba ukhetha ukuthatha ingqalelo iimfuno amaqela amabini okhokelayo kummandla iziqhubekisi iigrafiki - nto NVIDIA kunye ATI.

Le nkampani ixesha elide zikhuphisane omnye komnye, yaye eneneni akukho themba ukuba kwixa elizayo iza kukwazi ukuphelisa longquzulwano, kodwa abathengi kuyinto nje esandleni. Ngoku ke akwanelanga ukuphuhlisa injini ngokwenene ezikumgangatho ophezulu, kufuneka kwakhona ukuba acele inkxaso omnye abavelisi, ngubani nokusetha eyakho iinkqubo zazo bavumile ukuba igrodelov.

Ishedyuli likhula yaye ikhula ...

Yenza i revolution epheleleyo kummandla iinjini 3D-mifanekiso kunzima, ukwenzela ukuba ezi neziphithiphithi zinqabile kakhulu. Noko ke, kule imeko, Kakade ke, umgangatho umfanekiso uyaphuculwa athile ngokuhamba kwexesha kunye, Isimanga, yenzeka ngezantsi nje uphume ethile "sell" imidlalo ezifana Crysis.

Oku kusekelwe ucoco anisotropic, kwakunye ebizwa ngokuba yi-anti-olululo lobungakanani lwenziwa namhlanje kukhululwe inani elikhulu abaqhubi ezahlukeneyo ividiyo umenzi ngamnye, kunye nenkampani nganye indlela yayo kunye nemigaqo-nkqubo emalunga nale ifoun, nto leyo ngokufuthi nelungisa ukuba wonke.

Yintoni yokuhluza anisotropic?

Anisotropic Ukuhluza - yindlela ekhethekileyo yokuphucula noburhabaxa kwi imiphezulu ukuba kwi engile isalamane ethile lwecamera. Ngokufanayo njengoko bilinear okanye trilinear, anisotropic ivumela ukuphelisa angawo kwi iindawo ezahlukeneyo, kodwa lazisa ubuncinane usaba, ngokugcina umfanekiso iinkcukacha abekelwe.

Kubalulekile ukukhumbula ukuba imidlalo ukuhluza anisotropic iyaphunyezwa ngokusebenzisa ukubala ezintsonkothileyo, ngaloo ndlela 'ukuchitha "elincinane ngokwentelekiso izicwangciso kule midlalo kwaqondakala kuphela ukusukela ngo-2004.

Ukuze uqonde ukuba yintoni na nocococ anisotropic, kufuneka ube ulwazi olungundoqo kule ndawo. Kakade ke, namhlanje umsebenzisi ngamnye uyaqonda ukuba iskrini sakhiwa eninzi pixels ezahlukeneyo, onombolo yakhe kuxhomekeke isigqibo ngqo. Ukuze ukubonisa umfanekiso kwi yemizobo screen ukuba lumakishwe umbala pixel nganye.

isimiso ukusebenza

Khetha texture ethile, ongqamana isigqibo, apho ifumaneka ngaphesheya ulwalathiso ngokutsha. Emva koko, oku kuthatha texels bambalwa ecaleni indlela ukubukela, kulandele avareji umbala wabo.

Ekubeni screen kunokuba ipixels ngaphezu kwesigidi, yaye texel ngamnye kule meko ayikho amasuntswana ngaphantsi kwe-32, anisotropic ukuhluza imidlalo ifuna ekwiqondo eliphezulu kakhulu ividiyo ubunakho, ezo musa ukunika ezininzi nkqu izixhobo ezininzi mihla. Kungenxa yesi sizathu ukuba iimfuno memory enjalo elikhulu kuyancitshiswa ngokusetyenziswa ukulondoloza, kwakunye ezizodwa nobugcisa texture ucinezelo.

Zisebenza njani?

Ukumiselwa pixels umbala ikhutshwa phandle isicelo iimilo textured umfanekiso equka pixels zomfanekiso ntathu - texels, apho kuthelekiswa 3D komphandle. Byi iphambili kule meko kanye texels kuya kuqinisekisa umbala we pixel kwikhusi. Ukuze siqonde ngcono iimpawu ezahlula ucoco anisotropic, kufuneka ukucinga oko ikhusi lakho - ukuba loo isitovu enkulu, apho kukho ezininzi ezahlukeneyo emingxunyeni, nganye olumele pixel.

Ukuze ukwazi umbala a pixel kwi umboniso-ntathu okusileleyo kwesitovu, kwanele nje ukuba bakhangele umngxuma ahambelanayo. Ngoku thelekela ukuba umqadi ukukhanya udlula kulo, uze emva koko ukhwela zomhlaba wethu, ukuba iya ibekwe ngaxeshanye malunga nendawo zazo okungena, kulo mzekelo, ukufumana indawo ngeenxa ukukhanya. Ukuba akunjalo, ibala uya ngandlel nembono, okt. E. Ngaba sele imilo okweqanda. eneepoligoni ukuba zibekwe kwindawo ekukhanyeni, yaye iya kuqinisekisa umbala pixel ngamnye.

Kutheni kuyimfuneko?

Abantu abaninzi bakholelwa ukuba ucoco anisotropic isetyenziswa kuphela ukwenzela ukunika umfanekiso engcono, kodwa enyanisweni yinto nje isiphumo isiphelo, apho kubonelelwa nje kuphela ngenxa product ngokwayo.

Xa uyila umfanekiso texture badwelisi benkqubo ezithile enikwa texture level-ezimbini ukuhluza ukuba amacebo zimele ubuncinane kunye nemigama ubukhulu ukuba ukumisela ukuba ngowuphi umsebenzi filter ezithile lisetyenziswa kwinkqubo wokusungula ukuguda noburhabaxa umfanekiso kwimeko, ukuba ikhamera ngokushenxela kude okanye esondeleyo kuyo.

Ngokomzekelo, umntu xa trilinear okanye anisotropic coco esetyenziswa kelelo, ngamanye amazwi xa texel ngamnye iqala kufuneka ube neempawu ezinkulu sele lugubungela pixels ezininzi. Ukuze ususe kule angawo meko nokuyicoca iza kusetyenziswa. Kufuneka kuqatshelwe ukuba meko, oku Isisombululo kude kangangoko njengoko ukuhluza (anisotropic okanye trilinear) blurs umfanekiso kancinci. Ukuze ukunika nembono esengqiqweni ngakumbi lo mfanekiso, uyakufuna ukwandisa ukusonjululwa ubume.

ukhethe njani na?

Kakade ke, naziphi umsebenzisi kunye nabadlala eziqhelekileyo kukho kakhulu ngumbuzo nengqondo. Namhlanje kukho tri-linear kunye anisotropic lokuhluza - yintoni engcono? Enyanisweni, ngcono, Kakade ke, ubuchwepheshe anisotropic. Eyona nto kukuba ucoco tri-linear ayikho ngokuchanekileyo kakhulu ubala umbala texel nganye, kwaye ukuba kubekho ngqo, wenza okubi amathemba akhe, ukuba sithetha iinqwelomoya bethana. technology Application anisotropic ikuvumela zongeza okwangoku zisasetyenziselwa iindlela ukuhluza, ngokulungelanisa imeko-engile. Ngaloo ndlela elikhulu ekujikeni, kokukhona luya kuba semgangathweni ngokoqobo leyo esikwaziyo ukunikeza texture wokucoca anisotropic. Noko ke, ngelo xesha kufuneka siqonde ukuba oku kuya kuthatha kwaye inani elikhulu amakhadi igunya processing data.

Njani kuyanceda?

Kufuneka silindele ukuba ekugqibeleni, emva kokuba ukufakwa imisebenzi yemizobo-ntathu fabulously oluphuculweyo, ngakumbi kwi-engile eziphakamileyo ungabe ethile ifunyenwe, kodwa jikelele yoko, ufumana umfanekiso esengqiqweni ngakumbi. Kulo mba, elowo ngokwakhe ukhululekile ukuba isigqibo sokuba kufuneka asebenzise le yaye bekuya kuba nemveliso kuye njani.

Ekubeni ukuphucuka ngamandla kakhulu umgangatho imifanekiso, lo msebenzi akuthethi ukuqinisekisa ukuba abo bantu bazama ukuphakamisa ukusebenza umdlalo kwi kungekhona iikhompyutha zinamandla, ufuna ukukhubaza njani ucoco anisotropic. Neemfuno lo msebenzi wenziwa a incommensurate encinane xa kuthelekiswa yintoni umphumo inika, ngoko ke kubalulekile ukucinga malunga nendlela ukuyicima kuqala.

Point komculo

Point Isampuli namhlanje imele lwalo kakhulu elula ngendlela yimbonakalo pixel uzimisele. Le algorithm esekelwe kumfanekiso ukuguda noburhabaxa, xa ukhetha nayiphi texel olunye, akhiwe kufutshane kangangoko kunokwenzeka kweli ziko le ndawo ukukhanya. Asinto nzima ukuba baqashele ukuba ukhetho onjalo kakhulu kangangoko, njengoko umbala we pixel ukuba kumiselwa ngexesha elinye yi texels ezininzi, yaye ekhethiweyo kulo mzekelo, omnye kuphela, lo ndawo ukukhanya ukutshintsha imilo layo, lo algorithm akuthethi bayithathele ingqalelo.

Le ethile engundoqo, esibonakala loo nocococ anisotropic, kukuba xa kufutshane ngokwaneleyo ukuze kwisikrini inani pixels ziya ngokuphawulekayo yandisa xa kuthelekiswa nenani texels, ukuze umfanekiso uba ayiniki mdla kangako. Ekuthiwa-isiphumo olubiyele abaninzi ngokuqhelekileyo waphawula kule midlalo "omdala" ikhompyutha.