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1、3dsmax灯光技术基础3dsmaxlightingtechnologyfoundationYoumayhavelittleideahowthelightsourceworksinrealworld,butwhenyoucreatelightinthecomputergraphicsworld,youusuallyspendalotofeffortandtrytoachievethedesiredeffect・Threedimensionslsoftwareallowsyoutocreatethefreedomofanytypeoflightin
2、gatwill,butsometimesitmakesitdifficultforyoutocreatearealisticlookinadelicateimage・It'softenhelpfultoknowsomebasiclightingbasicswhenyou'rehavingtroublelightingupinaparticularscene・-whenyou'rereadytoilluminateascene,shouldpayattentiontothefollowingquestions:-whatisthetypeofenv
3、ironmentinthescene?Seenelightsareusuallydividedintothreetypes:naturallight,artificiallight,andthecombinationofthetwo.Thetypicalnaturallightisthesun.Whenusingnaturallight,thereareseveralotherquestionstoconsider:whattimeisitintheday:theskyisclearandtheskyiscloudy;andhowmuchligh
4、tisreflectedintheenvironment?Artificiallightcanbealmostanyform・Lights,fires,oranytypeofenvironmentlitupbythetwocanbeconsideredartificia1.Artificiallightisprobablythemostcommonofthethreetypesoflightsources・Youalsoneedtoconsiderwherethelightcomesfromandthequalityofthelight・Ifth
5、ereareseverallightsources,whichoneisthemainlightsourcetoberemoved?Itisalsoimportanttodeterminewhetherornottousecoloredlight・Almostalllightsourceshaveacolor,notpurewhite・Thelasttypeoflightisacombinationofnaturallightandartificiallight・Shootinginbrightoutdoor,photographersandli
6、ghtingengineerssometimesusemirrorsorauxiliarylightstoeaseharshshadows・-what，sthepurposeofthelight?Inotherwords,whatisthetoneandatmosphereofthescene?Expressingatoneinthelightiscrucialtotheoverallappearanceoftheimage.Insomecases,theonlyobjectiveistoclearlyseeoneormoreobjects,bu
7、tusuallynot,andtheactualtargetisquitecomplex・Lightshelptoexpressanemotion,ortoguidetheaudience，seyestoaparticularlocation.Youcanprovidemoredepthforthesceneanddisplayarichhierarchy.So,whenyoucreatealightforthescene,youcanaskyourselfwhattoneyouwanttoexpressDoesthelightingyouset
8、improvethestory?-aretherespeciallightingeffectsinthescene,andifso,sh
