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ID:34087339
大小:7.97 MB
页数:78页
时间:2019-03-03
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1、CHAPTER5PERSPECTIVEPROJECTIONSOverviewIntroductionTheprincipaldeviceforspatialrepresentationthatcreatestheillusionisticthirddimensionontwo-dimensionalsurfaceshasbeenperspective.RefinementsduringtheRenaissanceandthesubsequentdevelopmentofphotographyinth
2、enineteenthcenturyreenforcedperspectiveasthenaturalandstandardmethodofrepresentation.Bytheendofthenineteenthcentury,artistsexposedtoartfromnon-westerncultureschallengedtheconfinementsofabsoluteperspectivetodevelopabstractandexpressiverepresentations.An
3、understandingofperspectivehelpsyoucreatemorerealisticimagery.Beforeyoucancoherentlycreateabstractart,youshouldunderstandtheprinciplesofperspective.StudytheworksofAlbrechtDurerforexamplesofsuperbdraftsmanshipandperspectiverepresentation.Incontrast,study
4、theworkofMarcelDuchamp,whoseexpressivedistortionsofperspectiveandperceptionledintotheFuturismmovementin1909.ObjectivesThematerialinthischapterenablesyoutodothefollowing:Distinguishbetweenparallelandperspectiveprojection.Defineone-pointperspective.Defin
5、etwo-pointperspective.Definethree-pointperspective.Recognizethedifferencesinthree-pointperspectiveandisometricprojection.Evaluatekeyfeaturesindrawingsandcheckfortechnicalaccuracyandcompleteness.Continuedonnextpage5-1Overview,ContinuedAcronymsThefollowi
6、ngtablecontainsalistofacronymsthatyoumustknowtounderstandthematerialinthischapter.AcronymMeaningCLCenterlineCVCenterofVisionGLGroundLineHLHorizonLineSPStationPointPPPicturePlaneVPVanishingPointInthischapterThischaptercoversthefollowingtopics:TopicSeePa
7、gePerspective5-3LinearPerspective5-10ReversePerspective5-11AerialPerspective5-12One-PointPerspective5-13Two-PointPerspective5-14Three-PointPerspective5-16PerspectivePractices5-17PerspectiveIntroductionTwotypesofprojectionsormethodsofrealisticallyrepres
8、entingobjectsonapageareparallelprojectionandperspectiveorcentralprojection.Parallelprojectionisusedfortechnicaldrawingsandblueprintsandiscoveredinthenextchapter.Perspectiveorcentralprojectionisusedincreativeartortechnicalsketchingbutsel
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