Rendering

Softwareclassification

RenderingisthelastprocessofCG(exceptforpost-production,ofcourse).Itisalsothefinalstagetomakeyourimagefityour3Dscene.Therearemanykindsofsoftwareforrendering,suchas:eachCGsoftwarecomeswithitsownrenderingengine,andtherearealsosuchasRenderMan.Architecturaldesign,animationproduction,etc.Afterusing3DSMAX,MAYAandothersoftwaretomakemodelsandanimationframes,thedesigncontentismadeintothefinalrenderingoranimationusingthesoftwareitselforauxiliarysoftware(lightscape,vray,etc.).

Renderingprocess

Renderingicons(2photos)

First,thecamerainthe3Dscenemustbepositioned,whichisthesameasrealphotographythesame.Generallyspeaking,the3Dsoftwarehasprovidedfourdefaultcameras,thatis,thefourmainwindowsinthesoftware,whicharedividedintotopview,frontview,sideviewandperspectiveview.Mostofthetimewerenderperspectiveviewsinsteadofotherviews.Theperspectivecamerabasicallyfollowstheprincipleofarealcamera,sotheresultweseeisthesameastherealthree-dimensionalworld,withathree-dimensionaleffect.Next,inordertoreflectthesenseofspace,therenderingprogramhastodosome"special"work,whichistodeterminewhichobjectsareinthefront,whichobjectsareintheback,andwhichobjectsareoccluded.Thesenseofspacecannotbeperfectlyreproducedonlythroughtheocclusionrelationshipofobjects.Manybeginnersonlypayattentiontothemodelingofthethree-dimensionalsenseandignorethesenseofspace.Itshouldbeknownthatthesenseofspaceiscloselyrelatedtotheattenuationofthelightsource,environmentalfog,anddepthoffieldeffects.

Aftertherenderingprogramobtainstherangethatneedstoberenderedthroughthecamera,itmustcalculatetheinfluenceofthelightsourceontheobject,whichisthesameastherealworldsituation.Many3Dsoftwarehavedefaultlightsources,otherwise,wewillnotseethecoloringeffectintheperspectiveview,letalonetherendering.Therefore,therenderingprogramistocalculatetheimpactofeachlightsourceweaddinthesceneontheobject.Unlikelightsourcesintherealworld,renderingprogramsoftenhavetocalculatealargenumberofauxiliarylightsources.Inthescene,somelightsourceswillilluminateallobjects,andsomelightsourceswillonlyilluminatecertainobjects,whichmakesthingsthatareoriginallysimplemorecomplicated.Afterthat,doyouusedepthmapshadowsorray-tracedshadows?Thisoftendependsonwhethertransparentmaterialobjectsareusedinthescenetocalculatetheshadowscastbythelightsource.Inaddition,afterthearealightsourceisused,therenderingprogrammustcalculateaspecialshadow-softshadow(onlyraytracingcanbeused).Ifthelightsourceinthesceneuseslightsourcespecialeffects,therenderingprogramwillspendmoresystemresources.Tocalculatetheresultsofspecialeffects,especiallyvolumetriclight,alsoknownaslightfog,itwilltakeupalotofsystemresources,sobecarefulwhenyouuseit.

Afterthis,therenderingprogramalsocalculatesthecolorofthesurfaceoftheobjectaccordingtothematerialoftheobject.Differenttypesofmaterials,differentattributes,anddifferenttextureswillproduceavarietyofdifferenteffects.Moreover,thisresultdoesnotexistindependently,itmustbecombinedwiththeaforementionedlightsource.Ifthereareparticlesystemsinthescene,suchasflames,smoke,etc.,therenderingprogrammustbe"considered".

Post-processing

Thepost-processingofthedigitalfilmistoedit,addeffects,addsubtitles,musicandotherpost-productiontotherecordeddigitalfilm.Whenthefilmisgenerated,thepost-processingisrequired.Theaddedmaterialismergedintothemovieandcompressedintothefinalformatofthemovie.Thisisgenerallythecase,butitdiffersdependingontheenvironment.

Renderingfilter

The"Rendering"filtercreatescloudpatterns,refractionpatternsandsimulatedlightreflectionsintheimage.Youcanalsomanipulateobjectsin3Dspaceandcreatetexturefillsfromgrayscalefilestoproduce3D-likelightingeffects.

LayeredClouds

Userandomlygeneratedvalues​​betweentheforegroundandbackgroundcolorstogeneratecloudpatterns.Thisfiltermixesclouddatawithexistingpixelsinthesamewayasthe"Difference"modemixescolors.Whenthisfilterisselectedforthefirsttime,somepartsoftheimageareinvertedintocloudpatterns.Afterapplyingthisfilterafewtimes,apatternofflangesandveinssimilartothetextureofmarblewillbecreated.

Lightingeffects

AllowsyoutoproducecountlesslightingeffectsonRGBimagesbychanging17lightingstyles,3lightingtypesand4setsoflightingattributes.Youcanalsousethetextureofagrayfile(calledabumpmap)toproducea3D-likeeffect,andstoreyourownstyleforuseinotherimages.

LensFlare

Simulatestherefractioncausedbybrightlightshiningonthecameralens.Specifythelocationofthecenterofthehalobyclickinganywhereontheimagethumbnailordraggingitscrosshairs.

Texturefill

Filltheselectionwithagrayfileorpartofit.Toaddatexturetoadocumentorselection,openthegrayscaledocumentthatyouwanttouseasatexturefill.Loaditintoacertainchanneloftheimagetobetexture-filled(new),afterexecutingtheeffect,youcanseetheeffectofgrayscaleembossingintheimage.

Clouds

Userandomvalues​​betweentheforegroundandbackgroundcolorstogeneratesoftcloudpatterns.Togenerateacloudpatternwithmoredistinctcolors,holddowntheAltkeyandselectthe"filter/render/cloud"command.

[RenderinginProe]

Pro/Eprovidesarenderingtoolforproducinghigh-qualityimages,whichcanmaketheappearanceofpartsorassembliesclosetophotos.UsetherenderingfunctionofPro/Etogiveeachpartcolorandcorrespondingtransparency,sothatthedesignedproductcanbethree-dimensionalandmorevisual.Itisnotnecessarytocompareappearancesbygeneratingprototypesorphysicalmodels.Inparticular,theadvancedrenderingfunctionPhotoluxinCDRS2001isadded,andthecommandssetforaddingspecialrenderingeffectscanmakefogeffectsandlensflasheffects.Theproductmodelcanbeplacedinaspecificenvironment,suchasindoors.Youcansetthebackgroundofthefloor,fourwallsandceilinghere,andyoucanpreviewthebackground,adjustthesizeandposition;youcansetthematerialonthefeatureoracertainsurface,Definethesurfacecolor,transparency,roughnessandtexture,etc.;inaddition,usethemappingfunctiontogenerateandattachconventionalmarksandpatternsonproductsandpackaging,specifythesize,positionandtransparencyofeachpattern;specifythecolorandintensityofthelighttype,whichisconvenientChooseandcontroltheformofshadows.

Renderingmeasurement

WhenviewinganimageinthePhotoshopdocumentwindow,thevanishingpointmeasurementwillnotbevisible,eventhoughthismeasurementhasbeenretainedintheimageandwillappearwhenthevanishingpointisactivated.YoucanrenderthemeasurementssothattheywillbevisibleinthePhotoshopdocumentwindowafteryoufinishyourworkinVanishingPoint.Therenderedmeasurementisaraster,notavector.

Openthe"VanishingPoint"menuandchoose"RenderMeasurementtoPhotoshop".The"RenderMeasurementtoPhotoshop"commandmustbeselectedforeachVanishingPointsession.