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1、萬方數(shù)據(jù)山東大學(xué)碩士學(xué)位論文ABSTRACTToday,realisticrenderingisgettingmoreandmorewidelyusedinfilm,animation,advertisingandotherindustries.Withthecomputersoftwareandhardwareperformanceboost,weneedmoreateffectandspeedofrealisticrendering.Recentyears,謝tllphysicallylimitationofdevelopmentofCPU,parallelcomp
2、utingprogressrapidly,large—scalerenderingisgoingonitstime.Forexample,moviespends72hoursforsingleframe,16000yearsareneededforthewholeperiod誦tllsinglecore.However,parallel-renderingcutdownit,wetastudiospendseveralmonthswith35000computingCOre,4000work-station.Fromstorageofdata,after
3、meshcreated,itcannotberendereddirectly,becausethesemeshesisorganizedbyspecificsoftware,forexample,somesoftwaretakeaccountoperationsofmodelingworkers.However,whenweneedtorenderthesemeshes,wecannotrelyonthesedata.Itaffectsitscompatible.So,weneedaunifiedrenderingdata,andweprovideplugillSfor
4、modelingsoftwaretoexportstandarddataforus.Accordingtolargescaleparallelrendering,wegetsomeproblemsinefficacy,includemultipleframeswitllcomplexsceneproducealargeamountofdata,mainlyingeometry;secondcomesabignumberofsmallfiles.Throughtheworkofthispaper,thenormalizeddataorganizationmethodcan
5、reducetheamountofdataoutputandreduceinsideandoutsidestorageschedulingin-theparallelrendering.Forcomplexsceneswitllalargenumberofgeometry,andageometryhasamaterial,wewilldivideitinto2part,oneforgeometryandanotherforshader.1.Problemsingeometrydatainscene:Asmid-datadescribealltheinformationo
6、fgeometrythatincludelightsourceandmeshes,SO,ithassomethingtodowithcomplexofscene.Forexample.a(chǎn)scenetakes1GBwitll1000geometrieseachofwhichtakes1MB.Moreover,ifwerenderananimation,30frameasecond,only10Ill萬方數(shù)據(jù)山東大學(xué)碩士學(xué)位論文minutestakes300GB.Idispatchdataofgeometryandcoordinatetransformation,andke
7、epallthereduplicationsinafile,SOmassofdataiscutdown.2.Materials:Aftercutdowntheoutputdataofgeometry,thewayofloadingdataaffecttheefficacyatthesametime.Asmanykindsofmaterialsthatinclude300shadersinascenewith1000geometryexist,moreover,everyshaderofmaterialsseemtobesmalltOten