3d英文经典教程2

《3d英文经典教程2》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、TutorialSteps:PART2:LightdirectionFrontlighting:SideLighting:Backlighting:Lightingfromabove:Lightingfrombelow:PART2:LightdirectionThedirectionthatweviewalightsourcefromhasaprofoundeffectonourperceptionofit,andonhowtheobjectsinascenewillappear.Choosingwhichdirectionyou

2、rmainlightiscomingfromisoneofthemostimportantdecisionsyoucanmakesinceitwillhaveagreatdealofimpactonhowascenewillappear,andalsoontheemotionsyourimagewillconvey.Frontlighting:Thisiswherethelightsourceisdirectlybehindtheviewer'spointofview.Itismostcommonlyseeninflashphot

3、ographyandisoftenfairlyunappealingifthelightsourceishard-thereareexceptionsandinsomesituationsveryattractiveimagescancomefromsoftfrontallighting.Frontlightingdoeslittletorevealformortexturesincetheshadowsaremostlyhiddenfromview,asaresultitcanmakethingslookflat.However

4、softdiffusedfrontallightingcanalsobequiteflatteringtosomesubjectsforthisveryreason-itcanhelpconcealwrinklesandblemishesandsoisquiteoftenusedinportraitandproductphotography.Hardfrontallightinghasthatpaparazzilook:harshandoftenunattractive.Softfrontallightingsmoothsover

5、form.Frontlightingcanmakeascenelookflatsinceitisn'tgoodatrevealingformandtexture.SideLighting:Sidelightingisverygoodforshowingformandtextureandlendsathree-dimensionalqualitytoobjects.Shadowsareprominentandcontrastcanbehighasaresult.Sidelightingcanbeusedtothrowdramatic

6、shadowsontosurfacessuchaswallsandcreateatmosphere.Sidelightingisgenerallyattractiveandisoftenusedtogreateffect:itisthekindoflightingencounteredatthebeginningandendofthedayandassuchisoftenseeninfilmsandphotographs.Potentialdrawbacksofusingsidelightingarethatareasofthei

7、magecanbelostinshadow,anditcanrevealimperfectionssuchaswrinkles.Inportraitphotographyforinstanceitisgenerallyusedonmenratherthanwomenbecauseitcanlookquiteharsh,especiallyiftheshadowsaren'tsoftedged.Sidelightingcanbeusedtogreateffecttorevealformandtexture.Thetextureoft

8、hiswallisrevealedbythelightoftheeveningsunrakingacrossit.Thelongshadowscastacrossthisimagehelptogiveitasenseofdepthanddimens