Ukuxhatshazwa ngokuchaseneyo nokungabonakali, uRee, kunye neGPU-Acceleration
Ukuba uchithe naliphi na ixesha ukhangele kwiinjongo ezahlukeneyo kwiimarike, okanye ufunde malunga nezixazululo zokubonelela ngokuzimeleyo , unamathuba oye wafumana imigqaliselo efana ne-biased and impunity, GPU-acceleration, Reyes, ne-Monte-Carlo.
Ukutshatyalaliswa kwangoko kwimihla ngemihla yokuvelisa izizukulwana kuye kwavelisa inani elikhulu, kodwa ngamanye amaxesha kunokuba nzima ukuchazela umahluko phakathi kwe-buzzword yokuthengisa kunye nenxalenye yokuthembeka.
Makhe sijonge ezinye iigama ukwenzela ukuba ukwazi ukufikelela kwizinto ngokucacileyo:
Yintoni eyahlukileyo phakathi kokunciphisa kunye nokungabikho kokubi?
Ingxoxo yento eyenza ukungabikho kokusesikweni ngokungqinelaniyo nokunikezela ngokufanelekileyo kunokufumana ubugcisa ngokukhawuleza. Sifuna ukunqanda oko, ngoko ndiya kuzama ukuyigcina njengesiseko njengoko kunokwenzeka.
- Ukungabi namkhethe - Iingubo ezingenabulungelelaniso ezifana noMaxwell, Indigo, kunye neLuxrender zibizwa ngokuthi "zichanekile ngokwenyama" zenza iinjinjini. Nangona "ukuchaneka ngokusemzimbeni" yinto engafanelekiyo (akukho nto kwiCG echanekileyo ngokwenyama), eli gama libhekiselele ekuchazeni ukuba umshicileli ongenamkhethe ubala indlela yokukhanya ngokuchanekileyo njengoko kulandelelaniswa ngokukhawuleza ngaphakathi kwimiqathango yokulungisa i-gen-generation algorithms .
Ngamanye amazwi, akukho mpazamo echanekileyo okanye "i-bias" eyenziwa ngokuzithandela. Naluphi na ukungafani kuya kubonakala njengengxolo, kodwa kunikezelwa ixesha elaneleyo umququzeleli ongenakulungelelaniswa ekugqibeleni uya guqulwa kwisiphumo semathematika "esilungileyo". - I-Biased - i-Biased renderers, ngakolunye uhlangothi, yenza uqinisekiso oluthile kumdla wokusebenza kakuhle. Esikhundleni sokubhinqa kude kubekho umphumo wesandi oye wafikeleleka, iinguqu zengqungquthela ziza kuzisa i-sampuli ye-sampuli, kwaye isebenzise ukudibanisa okupholileyo okanye ukudibanisa ukunciphisa ixesha lokunikela. Iinguqu zengqungquthela eziqhelekileyo zinokuthi zilungiswe ngokugqithiseleyo kunezinye ezingahambisani nabangenamkhethe, kwaye ngakwesokunene, umshicileli onobuncwane unokukwazi ukuvelisa umphumo ochanileyo kunye nexesha elifutshane kakhulu leCPU.
Ngoko ekugqibeleni, ukhetho luphakathi kweenjini ezingenakulungelelaniswa, okudinga ixesha elingaphezulu kweCPU kodwa ezimbalwa iiyure zomculi ukuba zisebenze, okanye i-renderer engabonakaliyo eyenza umculi ulawulo olungakumbi kodwa kufuneke ukuba utyalo-mali obuninzi kwi-technician.
Nangona zihlala zingekho kumgaqo, iifayile ezingabonakaliyo zisebenza kakuhle kwimifanekiso esele ikhona, ngokukodwa kwicandelo lokubonakalisa izakhiwo, nangona kunjalo iifayile ezihambelayo, ifilimu kunye neefoto eziphathekayo zikhokelela ekusebenziseni i-renderer ekhethiweyo.
I-GPU Ingozi yokuKhusela njani?
Ukunyuswa kwe-GPU kukuphuhliso olutsha ngokunikezela iteknoloji. Iimoto-mdlalo zithembele kwiGPU imifanekiso eyisekelwe iminyaka kunye neminyaka, nangona kunjalo, kungekudala nje ukuba ukuhlanganiswa kweGPU kuqhutyelwe ukusetyenziswa kwezicelo ezingekhoyo zangempela-xesha apho iPCU ibilokhu ibukumkani.
Nangona kunjalo, ngokusasazeka kwe-platform yeNVIDIA ye-CUDA, kuye kwenzeka ukuba isebenzise i-GPU kwi-intanethi kunye ne-CPU kwimisebenzi yokunikezela ngokungaxhunyiwe kwi-intanethi, eyenza ukuveliswa kwesantya esitsha esilisayo.
I-GPU-accelerated renderers ingabalulekanga, njenge-Indigo okanye i-Octane, okanye ifanelekile njenge-Redshift.
Uphi uRenderman (Reyes) Ufanelekile Kulo Mfanekiso?
Kwinqanaba elithile, uRenderman uhlala ngaphandle kweengxoxo ezikhoyo. Kuyi-architecture yokuguqulela ngokubhekiselele kwi-alyesithi yeReyes, eyenziwe ngaphezu kweminyaka engama-20 edlulileyo kwi-Pixar Animation Studios.
U-Renderman unxibe kakhulu kwi-computer yecandelo lemifanekiso, kwaye nangona ukhuphiswano olukhulayo oluvela kwi-Anglid Angle lika-Arnold, luyakuthi luhlale lulunye lwesisombululo esiphezulu esiphezulu kwii-animation zokugqibela kunye neziphumo ze-studio kwiminyaka emininzi ezayo.
Ngoko ukuba uRenderman uyathandwa kakhulu, kutheni (ngaphandle kweepokotshi ezikude kwiindawo ezinjengeCGTalk), ngaba awuyiva malunga nayo rhoqo?
Kungenxa yokuba kwakungenakulungiselelwa ukuphela komsebenzisi ozimeleyo. Jonga ngeenxa zonke kwi-CG yoluntu kwaye uza kubona amawaka eemifanekiso ezivela kwi-raytracers eziphathekayo ezifana neVray kunye ne-Ray mentals, okanye iiphakheji ezingabonakaliyo ezifana no-Maxwell no-Indigo, kodwa kunqabile ukufumana into eyakhiwe eRenderman.
Eyona nto imele ifike phantsi kwinto yokuba uRenderman (njengoArnold) akakaze kuhloswe ukuba isetyenziswe ngokubanzi ngabaculi abazimeleyo. Nangona iVray okanye uMaxwell ingasetyenziswe ngokufanelekileyo ngumbhali ozimele ozimele, kuthatha iqela ukusebenzisa uRenderman ngendlela ejoliswe kuyo. URenderman yenzelwe iipayipi ezinkulu zokuvelisa, kwaye yilapho ikhula khona.
Yintoni Ethethayo Ngomntu Wokuphela-Umsebenzisi?
Okokuqala, kuthetha ukuba kukho iindlela ezingakumbi kunanini ngaphambili. Kungekude kudlulileyo, ukunikezelwa kwakungumlingo omnyama kwihlabathi le-CG, kwaye kuphela abaculi beengcali bezobuchwephesha ababephethe izitshixo. Kule minyaka yeshumi elidlulileyo, inkundla yokudlala iye yaqulunqwa kakhulu kwaye ubugcisa beefoto bufikeleleke ngokupheleleyo kwiqela elilodwa lomntu (kumfanekiso okwangoku, ubuncinane).
Khangela uludwe lwethu olusandul 'ushicilelo olusandul' usandul 'usandul' usandul 'ukufumana iimvakalelo ezintsha. Ukunikezela iteknoloji kuye kwandula indlela ephuma ebhokisini, kwaye izisombululo ezintsha ezifana ne-Octane okanye i-Redshift zihluke kakhulu kwiimpendulo ezindala ezifana noRenderman kangangokuthi cishe akunakucingca ukuzifanisa.