Kwabanye abaklami nonjiniyela, ukuskena kwe-3D izinto ezibonakalayo ukuze kusetshenziswe njengamamodeli ereferensi kungaba okonga isikhathi. Umklami Wezimboni u-Eric Strebel ungomunye ochwepheshe bokuklama okunjalo—futhi njengenjwayelo, unamacebiso abonisa ulwazi kwabanye abaklami nonjiniyela laphaya abafuna ukuqalisa umdlalo wabo wokuskena we-3D—aka, i-photogrammetry.
I-Photogrammetry iyinqubo lapho umsebenzisi ethatha izithombe zento ema-engeli ahlukene. Ngokusebenzisa lezi zithombe, isofthiwe yekhompuyutha ibala uhlobo nosayizi wento futhi ingaphinda iyenze njengemodeli ye-3D. Kuvidiyo yakhe yakamuva, u-Strebel usibonisa indlela yokulungisa nokuskena ibhodlela kusetshenziswa amasu ayisisekelo e-photogrammetry:
Okokuqala, indawo engaphezulu yento idinga ukulungiswa ukuze kuthuthukiswe ukuthwebula isithombe—okuhlanganisa nokususa ukungapheleli kwendawo kanye nokuxhopha. Ukwenza ibhodlela lingabuzi, uStebel uqala ngokufafaza ibhodlela ngemibala eminingana ye-primer. Ugqokisa ibhodlela kuqala nge-primer empunga, bese eshintsha emuva naphambili phakathi kwamachashaza ombala omnyama nomhlophe ukuze alinikeze ukuthungwa okuthile. Ngemva kokufafaza ibhodlela, ulisekela endaweni yesikhashana esebenzisa isibhamu seglue esishisayo.
Okubaluleke kakhulu ekuqinisekiseni okukhiphayo okufanele ukulungisa "isikhala sokuthwebula". Endabeni kaStrebel, ubeka ibhodlela futhi ame phezu kwetafula lakhe lokusebenzela njengoba liyisicaba futhi linokukhanya okuhle. Ukuze enze izithombe zibukeke kangcono ngemva kokukhiqizwa, ubeka ishidi lephepha elimhlophe ngaphezu kokukhanya njenge-diffuser ngenkathi ethatha izithombe zama-engeli ahlukene ebhodlela. Mayelana nezilungiselelo zakhe zekhamera, uStebel unekhamera esethelwe ukwenza ngesandla ngesimbobo esiphansi ngangokunokwenzeka ukuze afiphaze ingemuva futhi akwazi ukujula kahle kwenkundla. Uphinde abe ne-ISO ekhiyiwe kanye nekhamera i-autofocused.
Uma sezithathiwe izithombe, uyazingenisa I-Agisoft Metashape-umkhiqizo wesofthiwe ozimele owenza ukucutshungulwa okuzenzakalelayo kwezithombe zedijithali ukukhiqiza imodeli ye-3D-ukukhiqiza i-mesh yebhodlela. Uhlelo lunquma ama-engeli ahlukahlukene lapho ethathe khona izithombe futhi lwakha isithombe esisobala se-3D sebhodlela. Usika imodeli ye-3D yesitendi bese ebeka phansi ebhodleleni ngaphambi kokuthekelisa idatha eqediwe.
Idatha yebhodlela manje ingasetshenziswa ezinhlelweni ezahlukene ze-CAD ngezinjongo ezahlukene. Ngombono, ungakwazi ngisho ne-3D ukuphrinta ibhodlela elifanayo uma udinga. Ngenkathi i-Agisoft Metashape iphethe i-pricetag engu-$179 yenguqulo evamile, abasebenzisi abasha bangayizama mahhala izinsuku ezingu-30.
Njengenjwayelo, ungathola amavidiyo amaningi ka-Eric Stebel mayelana nokuklama nokwenza imikhiqizo kweyakhe Isiteshi se-YouTube.
