Yooj Yooj Tsim Nyog Uas Yuav Ua Rau Koj Cov Renders 3D Xav Tau Ntau Ntxiv
Diam duab-realism yog ib lub hom phiaj qhov kawg rau ntau tus kws tshawb fawb CG, thiab nws tseem yog ib qho nyuaj tshaj plaws ua tau. Txawm hais tias koj yog tus tshiab tshiab rau 3D lub computer graphics , txawm li cas los, niaj hnub no cov cuab yeej thiab cov hom phiaj kev lag luam ua cov yees duab-realism heev tau. Ntawm no yog yim hom kev kawm los pab koj tuaj yeem muaj:
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Bevel, Bevel, Bevel
Kev zam txim rau kev sib tw lossis kev sib tshuam yog ib qho ntawm feem ntau uas tau ua phem los ntawm pib 3D ntxias. Yuav luag tsis muaj razor-ntse sawv nyob rau hauv qhov, thiab feem ntau cov neeg ua los ntawm cov khoom ua muaj me ntsis ntawm qhov chaw ob qhov sib tawm tsam. Beveling pab coj tawm kom meej, thiab tiag tiag muag realism ntawm koj tus qauv los ntawm qhov cia cov npoo kom ntes cov teeb meem ntawm koj cov teeb pom kev zoo.
Siv lub pob (lossis lub cuab tam hauv 3ds Max) yog thawj yam uas koj yuav tsum kawm ua ib hom qauv. Yog tias koj txaus txaus rau 3D tias koj tsis paub xyov yuav ua li cas los ua ib lub ntug beveled, koj yuav muaj txiaj ntsim zoo los ntawm kev qhia zoo los yog txawm tias kev kawm haujlwm .
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Paub Siv Cov Ntawv Ua Haujlwm
Txawm tias muaj cov kab ua hauj lwm tau ntev xyoo, nws tseem yog lub tswv yim ruam thiab nyuaj rau cov neeg tshiab. Kuv yuav tsis sim piav tag nrho ntawm qhov kev xav ntawm no (muaj ntau ntau hais), tab sis kuv xav kom koj paub tias koj paub tias cov kev kawm no muaj nyob.
Qhov yuav tsum tau ua haujlwm ncaj qha tuaj ntawm qhov tseeb uas koj lub xov tooj qhia cov duab nyob hauv ib qho chaw txawv xim (sRGB) dua li qhov tawm hauv koj lub cav cav (kab). Yuav kom ntaus los no, cov neeg tsim yeeb yaj kiab yuav tsum tau ua cov kauj ruam uas yuav tsum tau siv qhov kev sib raug zoo ntawm gamma kho rau lub render.
Tab sis linear workflow tau mus zoo nkauj deb dhau yooj yooj yim dua gamma corrections-nws yog tag nrho hais txog eschewing cov laus cov tswv yim thiab kev ua haujlwm (feem ntau yog raws le lej lej), thiab tsiv mus rau lub cev muaj tseeb raws li teeb pom kev daws teeb meem.
Muaj ntau ntau ntxiv hais txog txoj kev ua hauj lwm linear, thiab thankfully nws tau raug sab laj tawm ntau xyoo dhau los. Ntawm no yog qhov txuas rau kev kawm txog txoj kev xav ntawm tus txheej txheem-nws txuas mus rau ntau qhov chaw, yog li muaj kev nyeem ntawv kom ua tiav. Qhov txuas thib ob yog Cov Kev Kawm Rau Cov Neeg Kawm Ntawv (Digital Tutors) uas ua haujlwm tshwj xeeb nrog cov haujlwm ua haujlwm hauv Maya xyoo 2012.
Tawm Workflow thiab Gamma
Tawm Workflow hauv Maya 2012
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Siv IES Light Profiles rau Photometric Teeb Pom Kev Zoo
Ua ke nrog kev ua haujlwm ntawm cov neeg ua haujlwm, 3D artists (tshwj xeeb tshaj yog cov ua haujlwm hauv qhov kev tsim vaj tsev qauv) tau pib siv cov ntaub ntawv hu ua IES lub teeb ntsig txog ntau qhov tseeb ntawm qhov tseeb ntawm lub teeb pom kev zoo.
IES profiles tau Ameslikas tsim los ntawm cov tuam txhab xws li General Electric li ib txoj kev rau digitally quantify photometric teeb cov ntaub ntawv. Vim tias IES lub teeb profiles muaj cov ntaub ntawv qhia meej txog kev pom lub teeb, luminance, thiab kev poob. 3D developers tau tuav lub sijhawm los ntxiv IES kev them nyiaj yug hauv feem ntau 3D pob.
Vim li cas siv sij hawm sim sim ntsig txog kev ua kom pom tseeb ntawm lub ntiaj teb thaum koj tuaj yeem siv IES qhov profile thiab muaj qhov tiag?
CG Arena muaj ib tsab xov xwm zoo nrog qee cov duab zoo los qhia koj lub tswv yim seb qhov IES pom zoo li cas.
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Siv qhov tob ntawm daim teb
Qhov tob ntawm qhov chaw (qhov muag plooj) qhov teebmeem no yog ib qho uas yooj yim tshaj plaws los ua kom qhov tseeb ntawm koj cov txiaj ntsim qub vim nws yog ib yam dab tsi uas peb koom tes nrog lub neej tiag tiag.
Siv qhov tob ntaws ntawm daim teb yuav pab cais koj cov ntawv, thiab tuaj yeem txhim kho koj qhov kev sib txuas nrog leaps thiab bounds thaum nws siv cov xwm txheej tsim nyog. Kev ua kom muaj peev xwm muab xam tau thaum lub sij hawm qhib los ntawm koj lub hnab pob, lossis siv rau tom qab siv z-siv qhov tob thiab lens plooj hauv Photoshop. Ua ntawv thov cov nyhuv hauv kev xa ntawv yog nyob deb ntawm kev ceev ceev, tab sis qhov chaw qhov tob ntawm qhov chaw li koj thawj hom ntawv muab koj tswj ntau dua cov nyhuv.
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Ntxiv Chromatic Abberation
Lub npe suab nyuab, tab sis ntxiv chromatic aberration rau koj renders yog tej zaum qhov yooj yim cov txheej txheem ntawm daim ntawv teev npe no.
Chromatic aberration tshwm sim hauv real-world photography thaum lub lens tsis kav txhua xim raws tib qho kev sib txuas. Qhov tshwm sim yog tshwm sim li "xim xim ntsuab," qhov chaw uas muaj qhov sib npaug ntawm qhov sib txawv ntawm qhov qhia txog kev hloov xim dub los yog xiav.
Vim hais tias chromatic aberration tsis lawm tshwm sim hauv CG teeb pom kev zoo , 3D ntxias tau tsim txoj hau kev fake qhov phenomenon los offsetting cov xim liab thiab xiav channel ntawm tus render los ntawm ib pixel lossis ob qho hauv Photoshop
Chromatic aberration ntxiv tau realism rau tus kav, tab sis nws tseem tuaj yeem detract los ntawm ib qho thaum cov nyhuv dhau. Tsis txhob ntshai sim nws, tab sis nco ntsoov tias qhov subtlety yog koj tus phooj ywg zoo tshaj plaws.
Raws li kuv hais, chromatic aberration yog ib qho yooj yim zoo nkauj yooj yim thov thiab Cov Neeg Qhia Muaj ib daim ntawv qhia ob-feeb dawb los qhia koj li cas:
Kev Coj Qhia Rau Chromatic Aberration
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Siv Cov Ntaub Ntawv Tshwj Xeeb
Feem ntau cov neeg ua yeeb yam kawm siv cov ntawv tshwj xeeb zoo nkauj thaum ntxov, tab sis nws yeej yog ib qho lus ceeb toom rau txhua tus neeg uas tsis tau nyob hauv kev sib tw.
Cov kis tshwj xeeb qhia rau koj lub cav cav uas qhov chaw ntawm koj tus qauv yuav tsum muaj kev siab luv (glossiness) thiab uas yuav tsum muaj ntau dua. Siv cov ntawv tshwj xeeb tshaj plaws ua rau lub neej zoo dua vim tias peb tuaj yeem fim nws-feem ntau cov khoom hauv lub cev tsis tso teeb ci ntsa iab, tab sis thaum koj tawm hauv cov ntawv qhia tshwj xeeb tawm, qhov tseeb yog qhov koj tus qauv yuav ua.
Txawm tias cov khoom uas muaj teeb ci (glazed ceramics, polished metal) koj tseem yuav tsum tau siv daim ntawv qhia tshwj xeeb los pab coj tawm ntawm qhov tsis muaj teeb meem los ntawm khawb, dings, thiab dents.
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Grunge nws li
Koj tsis pom "kev ua yuam kev ntawm kev zoo siab" ntau npaum li koj tau ua nyob rau hauv cov hnub thaum ntxov ntawm CG, tiam sis rau cov neeg ntawm koj tus kheej xav tau ceeb toom: tsis txhob ntshai ntxiv qee qhov av thiab cov nplua rau koj cov qauv thiab textures.
Feem ntau cov khoom hauv ntiaj teb no tsis huv thiab tsim tau, yog li tawm hauv koj tus qauv tias txoj kev tuaj yeem tawm los ua tubnkeeg thiab yuav luag yeej tsis ua rau koj qhov kev xav rau kev yees duab-realism. Nws tsis yog yuav tsum yog textural details yog-sim sim loj-kab tawg thiab kev puas tsuaj rau qee yam ntawm koj tus qauv, tshwj xeeb tshaj yog tias koj nyob nraum ua haujlwm ntawm FPS style game npuas.
Khaws lub tswv yim ntawm cov neeg tsis zoo siab thaum koj nyob nraum populating koj scenes ib yam nkaus thiab. Tshwj tsis yog tias koj yuav mus rau ib qho chaw ua yeeb yam zoo nkauj heev, txhuam me ntsis hauv koj qhov chaw ua kom pom qhov chaw zoo nyob hauv.
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Ntxiv Asymetry
Lub peev xwm los ua kom zoo ib yam thaum ua qauv lossis ua kom luag txawv txav yog ib qhov khoom loj heev-nws txhais tau tias cov qauv peb tsuas yog yuav tsum ua ib nrab ntawm kev ua haujlwm thiab tsis tas yuav txhawj peb tus kheej ib qhov muag loj dua li lwm tus, lossis paub tseeb tias sab laug cheekbone kab nrog txoj cai ib (koj paub, cov teeb meem pesky uas teeb meem tsoos cov duab thiab cov sculptors).
Tab sis thaum nws los txog lub sij hawm los ua ib qho kev tshaj plaws dhau pass thiab ua rau koj cov qauv, nws yog ib lub tswv yim zoo los tua cov kab symmetry thiab ntxiv ib co kev sib txawv asymmetric rau koj tus cwj pwm.
Txawm nws yog nyob rau hauv lub teeb, hnav khaub ncaws, los yog textural meej, asymmetry yuav ua rau koj cov qauv ntau lifelike, thiab yuav muaj koj yuav xaus nrog ib tug ntau dynamic thiab zoo kawg daim duab.