Monte-carlio methods in Global illumination

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1、MONTE-CARLOMETHODSINGLOBALILLUMINATIONScriptwrittenbySzirmay-KalosLaszl´o´inWSof1999/2000InstituteofComputerGraphicsViennaUniversityofTechnologyiContents1Introduction11.1Globalpass..............................................21.2Localpass..............................

2、.................21.3Tonemapping.............................................22Globalilluminationproblem52.1Therenderingequation........................................52.2Measuringtheradiance........................................82.3Thepotentialequation.............

3、...........................82.4Measuringthepotential........................................92.5Therenderingproblem........................................102.5.1Geometryofthesurfaces...................................102.5.2Bi-directionalReflectionDistributionFunctions

4、.......................112.5.3Lightsources.........................................112.5.4Measuringdevices......................................122.6Numericalsolutionoftherenderingequation............................142.6.1Errormeasuresfornumerictechniques.............

5、..............142.6.2Propertiesoftherenderingequation.............................152.7Classificationofthesolutiontechniques...............................153Opticalmaterialmodels183.1Diffusereflection...........................................183.2Ideal,mirror-likereflec

6、tion......................................193.3Idealrefraction............................................213.4Non-ideal,specularreflection.....................................213.4.1Phongreflectionmodelanditsmodifications........................213.4.2Cook-Torrancemodel.

7、...................................244Solutionstrategiesfortheglobalilluminationproblem284.1Inversion...............................................284.2Expansion...............................................284.2.1Expansionoftherenderingequation:gatheringwalks.......

8、.............284.2.2Expansionofthepotentialequation:shootingwalks....................304.2.3Meritsanddisadvantagesofe