實(shí)時(shí)陰影繪制方法研究及gpu加速

1、華中師范大學(xué)碩士學(xué)位論文實(shí)時(shí)陰影繪制方法研究及GPU加速姓名：梅世冬申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用與技術(shù)指導(dǎo)教師：金漢均20100501⑨碩士學(xué)位論文MASTER‘STHESISAbstractAsakeytechnologytoincreasemerealismofthevirtuaIscene一——tlleshadowoftherealtimerenderingtechnologyin3Dgames，animation，film

2、andtelevision，three—dimensionalgeographicinformationsystems，computeraideddesignandmanufacturingandmanyotherfieldswaswidelyusedTheeffectofshadowplayedallimportantroleinthegenerationofrealisticgraphicsanddeterminingtheloca

3、tionofobjectsithadverylargeeffectforpeopletounderstandtheimpactofthree—dimensionalsceneHowever’intherealizationofthetraditionalmethods，eitherimagespaceorobjectspacealgorithms，allthetransformationoperationcalculationofgra

4、phicspipelinewerecompletedbytheCPU，SOtheperformanceofalgorithmswasgreatlyconstrainedItcouldnotguaranteetheresultingshadowsonthephysicalaccuracyasthesametime，guaranteetheachievementofrealtimerenderingresultsOnthebasisofex

5、amininganumberofpapersathomeandabroadwehadimprovedthevolumeshadowgenerationalgorithminthispapercombiningwithimagespacecontourdetectionmethodsandusingGPUAcceleratedtechnologytodeliverrealtimeshadowrenderingMajorresearchan

6、dinnovationisreflectedinthefollowingtwoaspects：Weimprovedshadowvolumealgorithmaddingatwo—dimensionalarraythatsavethedepthtestvalueandthestatevectorthenitwillsolvethetraditionalshadowvolumealgorithm，ZPASSandtheZFAILproble

7、ms，accordingtothesceneandtheviewpointpositionoffieechoiceoftwokindsofmethods，atthesametimesolvetheirownshortcomingofshadowvolumealgorithmCombiningwithimagespacecontourdetectionalgorithmcouldbeconvenientandefficienttoachi

8、eveashadowvolumerendering，andsolvetheproblemshadowvolumealgorithmCannotsolvelargeandcomplexscenerenderingWestudiedtheQPUaccelerationmodelbasedoncontourdetectionimagespaceshadowrenderingalgorithmInthispaperweusedthepipeli

9、neGPUprogrammingprocessorandprocessingcharacteristicsofparallelismtoacceleratethespeedofshadowrendering，teducetheburdenoftheCPUinshadowrenderingAtthesametime，wesolvedtherealtimeproblemexistedinthetraditionalshadowrenderi