Kuhlaselwa ngokungahambisani nokungabi nabulungiswa, i-Reyes, ne-GPU-Ukusheshisa
Uma usuchithe noma nini ubheka izinjini ezihlukahlukene emakethe, noma ufunde mayelana nezixazululo zokunikezela ngokuzimisela , kungenzeka ukuthi uhlangabezane nemigomo efana nokuhleleka nokungahambi kahle, ukusheshiswa kwe-GPU, i-Reyes, ne-Monte-Carlo.
I-wave yamuva yama-renderers esilandelayo yenze umuthi omkhulu, kodwa ngezinye izikhathi kungaba nzima ukutshela umehluko phakathi kwe-buzzword yokumaketha kanye nesici esiqotho.
Ake sibuke amanye amagama asetshenziswayo ukuze ukwazi ukusondela ezintweni ngokubona okucacile:
Uyini umehluko phakathi kokunikezwa okungafanelekile nokungenabulungiswa?
Ingxoxo yalokho okushiwo ukungabi nabulungiswa kokuhumusha okungahambisani nokuhleleka kungathola ubuchwepheshe ngokushesha. Sifuna ukugwema lokho, ngakho-ke ngizozama ukukugcina njengento eyisisekelo ngangokunokwenzeka.
- Ukungabi namabomu - Amafilimu angabonakali njengoMaxwell, Indigo, ne-Luxrender ngokuvamile adunyiswa ngokuthi "anempilo ngokomzimba" anikeze izinjini. Nakuba "okunempilo ngokomzimba" kuyinto engalungile (akukho lutho ku-CG enembile ngempela ngokomzimba), leli gama lisho ukuthi umshini ongenamkhawulo angalinganisa indlela yokukhanya njengoba ngokunembile kunokwenzeka ngaphakathi kwezingqinamba ze-gener-gen rendering algorithms .
Ngamanye amazwi, ayikho iphutha elihlelekile noma "i-bias" eliqaliswa ngenhloso. Noma yikuphi ukuhluka kuzobonakala njengomsindo, kodwa kunikezwe isikhathi esanele umshicileli ongenamkhawulo uzogcina ekuguquleni umphumela "wezilungile" wezibalo. - Ukuxhaswa - ukuphikisana nama-renderers, ngakolunye uhlangothi, ukwenza ukuvumelana okuthile ngenhloso yokusebenza kahle. Esikhundleni sokuqeda kuze kube yilapho sekufinyelelwe umphumela womsindo, ama-renderers ahlaselayo azokwethula isampula se-sampula, futhi asebenzise ukubhala okuphambene noma ukufiphaza ukunciphisa isikhathi. Ama-renderers angahle angahle ahlelwe kahle kunabo abalingani bawo abangenabulungiswa, futhi ngakwesokunene, i-renderer ekhethiwe ingakwazi ukukhiqiza umphumela onembile kakhulu nge-CPU encane kakhulu.
Ngakho ekugcineni, ukhetho luphakathi kwenjini engenamkhawulo, okudinga isikhathi esiningi se-CPU kodwa abambalwa abaculi-amahora ukusebenza, noma i-render biased okuyinto enikeza umculi impela ukulawula okungaphezulu kodwa kudinga ukutshala isikhathi esiningi kumchwepheshe ohlinzekayo.
Nakuba kuhlale kungavunyelwe ukubusa, ama-renderers angenabulungiswa abasebenza kahle ngezithombe ezisekhona, ikakhulukazi emkhakheni wokubukwa kwezakhiwo, noma kunjalo, ihluzo, ifilimu, ne-animation zincipha ukuthi ukusebenza kahle kwe-renderer eguquguqukayo kuvame ukukhetha.
I-GPU Ukunyuswa Kwenziwe Kanjani?
Ukusheshiswa kwe-GPU kuyintuthuko entsha ekuhlinzekeni ubuchwepheshe. Amageyimu wegeyimu asekelwe ihluzo ezisuselwe ku-GPU iminyaka neminyaka, kodwa-ke, nje nje nje ukuthi ukuhlanganiswa kwe-GPU kuhlolwe ukusetshenziswa ekusebenziseni isikhathi okungezona zangempela lapho i-CPU ibilokhu ingenkosi.
Kodwa-ke, ngokusakazeka okubanzi kwesikhulumi se-NVIDIA sika-CUDA, kwenzeke ukusebenzisa i-GPU ngokulandelana ne-CPU ekunikezeni imisebenzi engaxhunyiwe ku-intanethi, okwenza kube nomswakama omusha othakazelisayo wokunikeza izinhlelo zokusebenza.
Ama-renderers agunyaziwe we-GPU angabi nabulungile, njengo-Indigo noma u-Octane, noma ahlaselwe njenge-Redshift.
Uphi uRenderman (Reyes) Afika Kulo Mfanekiso?
Ngezinga elithile, uRenderman umele kancane ngaphandle kwengxoxo yamanje. Kuyinto yokwakhiwa kwezinto eziguquguqukayo ezisekelwe ku-Alyes algorithm, eyenziwe eminyakeni engaphezu kwengu-20 edlule ku-Pixar Animation Studios.
U-Renderman uhlanganiswe kakhulu embonini yegraphic computer, futhi naphezu kokuncintisana okukhulayo kusuka ku-Solid Angle ka-Arnold, cishe cishe kuzoba esinye sezixazululo eziphezulu ezinikezwayo kuma-studio ephezulu ekugcineni izithombe kanye nemiphumela yaminyaka eminingi ezayo.
Ngakho-ke uma uRenderman ethandwa kangaka, kungani (eceleni kwamapokhethi angasese ezindaweni ezifana neCGTalk), awuyikuzwa ngakho ngaso sonke isikhathi?
Ngoba umane nje wawungenzelwe ukuphela komsebenzisi ozimele. Bheka nxazonke ze-CG yomphakathi futhi uzobona izinkulungwane zezithombe ezivela kuma-raditracers abanjenge-Vray ne-Ray mentals, noma amaphakheji angenabulungiswa afana noMaxwell no-Indigo, kodwa akuvamile ukuthola okuthile okwakhiwe eRenderman.
Kuvele nje ukuthi uRenderman (njengo-Arnold) akakaze ahloselwe ukusetshenziswa kabanzi ngabaculi abazimele. Ngenkathi uVray noma uMaxwell kungasetshenziswa ngokufanele ngomculi oyedwa ozimele, kuthatha ithimba ukusebenzisa uRenderman ngendlela ehlose ngayo. U-Renderman waklanyelwe amapayipayipi amakhulu okukhiqizwa, futhi yilapho ekhula khona.
Yini Okushoyo Ngomsebenzisi Wokuphela?
Okokuqala, kusho ukuthi kunezinketho eziningi kunanini ngaphambili. Akuzange kube yisikhathi esidlule, ukunikezwa kwakuyingxenye yamatshi omnyama ezweni le-CG, futhi kuphela abaculi abanengqondo abaphethe izihluthulelo. Phakathi neminyaka eyishumi eyedlule, inkundla yokudlala iye yasungula okuningi futhi ukubonakala kwesithombe sekufinyeleleke ngokuphelele eqenjini lomuntu oyedwa (esithombeni esisekhona, okungenani).
Hlola uhlu lwethu olusanda kushicilelwa lwezinjini ukunikeza ukuzwa ukuthi zingaki izixazululo ezintsha ezivele zivele. Ukubuyisela ubuchwepheshe kuye kwaphuma indlela ebhokisini, futhi izixazululo ezintsha ezifana ne-Octane noma i-Redshift zihluke kakhulu kuma-standbys endala njengoRenderman kangangokuthi cishe azizwanga kahle ukuziqhathanisa.