dmax用光域网使用经验（experience of using optical domain network for dmax）

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1、3dmax用光域网使用经验（Experienceofusingopticaldomainnetworkfor3DMAX）Experienceofusingopticaldomainnetworkfor3DMAXAm3DMAXexperiencewithSkyLight(skylight)SkyLightisusedtosimulatedaylighteffects.TheusercansetthecoloroftheskyorspecifythemapforitselfOn:usedtoturnonorofftheskylights.Selectthecheckboxand

2、usetheskylightstoilluminatethesceneduringtheshadowandrenderingcalculations.Multiplier(multiplier):magnifyorreducetheintensityoflightbyspecifyingapositiveornegativevalue.SkyColor(skycolor)optiongroupUseSceneEnvironment(usesceneenvironment):selectthisoption,willusetheEnvironmentandEffectdial

3、ogboxintheenvironmentsettingstosetthecolorofthelight.Thissettingisvalidonlyiftheraytracingisinactivestate.SkyColor:toselectthisoption,clickthecolorswatchboxtodisplaytheColorSelectordialogboxandselectthecoloroftheskylamp.Map:mapscanbeusedtoaffectthecolorofskylights.Thecheckboxisusedtocontro

4、ltheactivationofmap;trimmerontherightsideofthemapisusedtosettheusepercentage(ifthevalueislessthan100%,itwillmapcolorandskycolormixing);theNonebuttonisusedtospecifyamap.Themapisvalidonlyiftheraytracingisinactivestate.Render(render)optiongroupNote:thisoptiongroupisvalidonlywhentheDefaultscan

5、linerendereriscurrentlyusedandtheraytracingisnotactivated.CastShadows(projectionshadow):whenselected,skylightsprojectshadows.Defaulttoturnoff.Note:thisoptionisnotvalidwhenusingradiosityorraytracing.SkylightsdonotcastshadowswhenrenderingwithActiveshaderenderinglevels.RaysperSample(thenumber

6、ofrayspersample):settheamountoflightusedtocalculatetheskylightsonthegivenpointinthescene,withadefaultvalueof20.Whenmakinganimation,youneedtoincreasethisvalue(about30)toeliminateflickeringphenomenon.RayBias(lightdeviation):setobjectstocasttheminimumdistanceofshadowsonafixedpointinthescene.I

7、fthevalueis0,theshadowobjectcanbeinitsownprojection;setthisvaluetoavoidthelargeobjectpointsneartheshadow.Thedefaultvalueis0.005.Arealight(zonelamp)Arealight(zonelamp)isanewstandardlighttypeaddedby3dsMax6.Itisspeciallydesignedformentalrayrenderer,andsupportsglo