Kawm Yuav Ua Li Cas Thiaj Pom Kom Pom Zoo Hauv Khaub Ncaws nrog Mia_Material_X
Yog li, koj yuav tsum tau kav iav hauv Maya thiab tsis paub pib qhov twg. Yog hais tias koj yog tus tshiab tshiab rau Maya thiab tsis muaj ntau txoj kev siv Tus Plhaub Lub Plhaub Tus Plig Plug Plug Plug Plug , koj tus thawj impulse tej zaum yuav muab ib qho qauv Blinn cov ntaub ntawv thiab thav pob kom txog thaum nws tseem meej.
Qhov no yuav ua hauj lwm raws li ib qho kev sib ntsib thaum koj nyob nraum thaiv koj cov duab, tab sis Maya tus software shaders yog feem ntau tsis tsim nyog rau kev ua haujlwm ntawm lub cev.
Los ua cov iav, koj yuav tsum siv ntau yam lus Mental_material_x .
Nrhiav Mia_Material_X
Mental shadow lub Mia shader yog lub ntsiab lus tag nrho txhua yam uas tsim los ua kom muaj lub cev zoo rau ib qho chaw hauv cheeb tsam uas koj tuaj yeem xav txog xws li chrome, pob zeb, ntoo, iav, thiab cov nplais pobzeb.
Lub mia_material_x ntawm yuav tsum tsim lub hauv paus ntawm txhua yam khoom uas koj tsim hauv Maya, ib sab ntawm daim tawv shaders.
Xav nrhiav mia_material_x, nyem Hypershade qhov rais > Mental Ray > Khoom > mia_material_x .
Tus qauv MIA shader yog ib qho nruab nrab ntawm qhov ntse nrog ib qho ntse ntse nthuav qhia.
Customizing cov Mia khoom
Teeb ib qhov kev xeem uas muaj kev sib tham nrog cov qauv geometry thiab ib qho yooj yim ntawm kev ua kom pom kev ua hauj lwm los ntawm kev ua tus txheej txheem rau hauv Mental Ray.
Mia cov ntaub ntawv muaj ntau yam ntawm cov kev xaiv. Ib txhia ntawm lawv yuav yog qhov tseem ceeb rau koj, tab sis lawv muaj ntau qhov koj tsis quav ntsej. Mus txog ntawm lub iav yooj yim shader yog qhov yooj yim-tsuas yog pib pib lo lus thaum koj xav sau cov iav nrog kua.
Koj qhov kev vam meej nyob rau hauv cov iav yog nyob ntawm seb koj ua tau zoo npaum li cas: Diffuse, Refraction, Reflection, Specularity, thiab Fresnel Effect.
Diffuse Parameter
Koj tab tom tsim kom muaj xim tsis muaj xim, ntshiab, ces txoj haujlwm hauv Diffuse tab yog incredibly straightforward. Diffuse lub teeb muab ib daim ntawv nws cov xim deg. Vim tias lub iav hauv qhov ua piv txwv no yog qhov tseeb, koj tsis tas yuav muaj qhov kev tawm suab hauv lub shader. Nyob rau hauv lub diffuse tab, hloov tus nqi ntawm qhov nyhav slider mus xoom.
Txhuam dua
Qhov Refraction tab yog qhov uas koj kam nrog cov khoom siv iav los ntawm cov khoom siv nyiaj.
Thawj qhov uas koj xav tau kho yog qhov kev ntsuas ntawm qhov ntsuas parameter, uas yog qhov sib txawv ntawm lub ntiaj teb qhov tseeb ntawm qhov tseem ceeb ntawm txoj kev ntseeg uas muaj nyob rau txhua qhov chaw ntawm cov pob tshab.
Yog tias koj yuag dua ntawm Index of Refraction tab, ib daim ntawv teev me me ntawm qhov tseem ceeb rau cov ntaub ntawv sib txawv tuaj. Dej muaj qhov ntsuas ntawm kev ncig ntawm 1.3. Crown iav muaj qhov tseeb ntawm lub ntiaj teb ntawm kev poob siab ntawm thaj tsam li ntawm 1.52. Teem caij rau qhov ntsuas ntawm refraction rau 1.52.
Qhov kawg tshaj plaws uas koj xav tau tweak nyob hauv lub caij tab yog qhov nqi tshev. Koj tab tom tsim ib daim iav siab ntxoov ntxoo, ces koj muab tus nqi siab rau 1.
Thiaj xav
Cov Thiaj Nrhiav Tab yuav txiav txim seb qhov ntau npaum li cas ntawm lub iav qhov chaw yog pom nyob rau hauv qhov kawg kav. Txawm hais tias nws yog tseeb, lub khob yuav tsum muaj ib qho siab ntawm glossiness thiab kev xav tau.
Tawm ntawm qhov nqi ntawm glossiness ntawm 1.0 thiab hloov qhov kev xav tau ntawm qhov nqi ntawm 0.8 thiab 1. Ib qho me ntsis ntawm qhov kev paub tab yog nyob ntawm seb qhov koj xav tau hauv koj cov duab kawg, tab sis qhov kev xav tsis zoo yuav tsum tsis txhob poob ntawm 0.8.
Specularity
Yog tias koj ua qhov kev ntsuam xyuas ntawm qhov no, koj yuav pom tias koj tabtom nyob ze rau ntawm cov iav uas pom zoo, tab sis tseem muaj ob yam uas koj yuav tsum paub txog.
Yog tias koj sib piv nrog koj qhov teeb meem tam sim no nrog lub iav real-world, koj yuav pom tau hais tias cov nplaim yog tam sim no kuj nce mentsis dhau heev lawm los hu ua qhov tseeb. Txoj cai tam sim no lub mia_material yog reflecting ib puag ncig, uas yog qhov zoo, tab sis nws tseem yog xam glossy reflections raws specularity, uas yog qhov phem.
Cov ntsiab lus tshwj xeeb yog kev tuav ntawm cov hnub dhau los ntawm CG thaum glossy reflections yuav tsum tau faked. Nws tseem yog tus cwj pwm tseem ceeb hauv CG surfacing, tab sis, hauv qhov no, nws yog qhov tseeb rau koj dua li qhov koj xav pom. Koj xav kom muaj lub zeem muag zoo tiam sis poob cov ntsiab lus tshwj xeeb uas muaj feem xyuam uas yog tam sim no uas qhia tawm hauv cov haujlwm.
Nrhiav qhov Kev Ntsuas Sib Txawv ntawm Cov Ntaus Nqi Tau Zoo (Advanced Balance attribute) nyob hauv Advanced (Advanced ) tab thiab teem caij xoom.
Cov nyhuv Fresnel
Tam sim no tus nplaim ntawm lub iav zaub yog qhov sib txig sib to taub thaum nyob hauv kev muaj tiag tiag koj yuav tsum pom qhov tseem ceeb tsis muaj teeb meem nyob qhov twg lub khob ntim cov koob yees duab thiab muaj zog zoo rau cov npoo ntawm qhov iav curves tseg. Qhov no hu ua Fresnel effect.
Vim hais tias cov nyhuv Fresnel yog ib qho phenomenon feem ntau, cov mia_material muaj Fresnel attribute ua rau nws. Txhua yam koj tau ua yog tig nws.
Qhib BRDF tab (luv luv rau Bidirectional Reflectance Distribution Function) hauv cov khoom siv qhov rai, thiab khij lub npov uas sau tias Siv Fresnel Reflection.
Koj yuav tsum pom qhov kev hloov pauv kuj nce mentsis.
Xaus
Lub mia_material_x muaj lub iav preset hu ua cov iav uas yog ze rau ntawm tus ntxoov ntxoo koj cia li tsim. Qhov tseeb, nws tau zoo txaus tias nws yog qhov zoo txaus rau feem ntau ntawm koj cov kev xav tau.
Nws yog ib txwm zoo kom paub tias ib yam dab tsi yog tsim, txawm. Los ntawm kev tsim lub shader koj tus kheej, koj kawm tau qhov twg ua rau kom sib txawv ntawm shader, thiab koj thiaj li ntau tau tweak shader rau koj liking yav tom ntej los tsim cov variations ntawm nws rau me ntsis sib txawv los.
Hais tias, yog tias koj xav siv lub iav preset, cia li qhib qhov khoom yeeb yam rau lub mia_material_x, tuav lub khawm preset nyob rau sab pem hauv ntej ntawm lub qhov rais thiab mus khwv tau iav > hloov.