vray for sketchup manual

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VRay for SketchUp Manual Understanding V-Ray for SketchUp's Default Settings Rendering with the Default Settings The Default Options in V-Ray for SketchUp are set up so that certain elements of V-Ray are already enabled. This is good because certain aspects that are specific to V-Ray are already configured with a proper setting. However there are a number of elements which are contributing to the final render, and it is important to know what they are so that unwanted results are avoided when we start adjusting the render options ourselves. Key Elements in the Default Settings There are three main elements specific to V-Ray that are creating some of the aspects of the default render. These elements are Indirect Illumination, the V-Ray Sun and Sky, and the V-Ray Physical Camera. These elements will be explained very briefly here, and you can reference other chapters of this manual for a detailed explanation of these elements. Indirect Illumination is simply light that does not come directly from a single light source. In V-Ray this typically references two types of light; Global Illumination and Bounced light. Global Illumination is simply a dome of light that is emitted around the scene, and this can make setting up lighting very quick and easy. Bounced light is simply the light energy that is bounced from a surface. This bounced light is what allows V-Ray to create high-quality renderings. The V-Ray Sun and Sky is physically accurate lighting model allowing for easy recreation of the effects of the Sun and Sky. This is an excellent tool for setting up exterior renderings with a sun. Due to the nature of the

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A Guide / Manual for Vray for Sketchup

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VRay for SketchUp ManualUnderstanding V-Ray for SketchUp'sDefault SettingsRendering with the Default SettingsThe Default Options in V-Ray for SketchUp are set up so that certainelementsofV-Rayarealreadyenabled. Thisisgoodbecausecertain aspects that are specifc to V-Ray are already confgured itha proper setting. !oe"er there are a number of elements hich arecontributing to the fnal render# and it is important to kno hat theyare so that unanted results are a"oided hen e start ad$usting therender options oursel"es.Key Elements in the Default SettingsThere are three main elements specifc to V-Ray that are creating someof theaspects of thedefault render. Theseelements are%ndirect%llumination# the V-Ray Sun and Sky# and the V-Ray &hysical 'amera.These elements ill be e(plained "ery brie)y here# and you canreference other chapters of this manual for a detailed e(planation ofthese elements. %ndirect %llumination is simply light that does not comedirectly from a single light source. %n V-Ray this typically references totypes of light* +lobal %llumination and ,ounced light. +lobal%llumination is simply a dome of light that is emitted around the scene#and this canmakesettingup lighting"ery -uickandeasy. ,ouncedlightissimplythelightenergythatisbouncedfromasurface. Thisbounced light is hat allos V-Ray to create high--uality renderings.The V-Ray Sun and Sky is physically accurate lighting model alloingfor easyrecreation of thee.ects of theSunandSky. This is ane(cellent tool for setting up e(terior renderings ith a sun. Due to thenature of the model in hich the sun and sky are based o. of# you illfnd that under standard conditions the sun and sky ill be e(tremelybright.,ecause of this the V-Ray &hysical 'amera is used to e(posethe scene and brings the rendered image to a desirable le"el. The V-Ray &hysical 'amera is modeled after a real-orld camera and can beused to e(pose a scene. %n the real orld# lighting is di.erent in manysituations# and because of this a photographer ill use the capabilitiesof the camera to properly e(pose the image. &roper e(posure meansthat the image is not o"erly bright or too dark. /hen creatingrenderings this gi"es us the opportunity to set our lighting as it ouldbe in the real orld 0in this case it is the Sun and Sky1 and ad$ust ourcamera settings until e achie"e the desired result.efore you Start Rendering with V-Ray forSketchUp/hen rendering an image ith any rendering program# including V-Rayfor SketchUp# you must understand three main factors that ill a.ectthe image2 3ighting# 4aterials# and 4apping. 3ighting plays the mostimportant roleamongthesethree. %t ill a.ect thecolor# shado#re)ection and refraction among e"ery single ob$ect in the scene.V-Ray for SketchUp is a rendering engine e-uipped ith +lobal%llumination0+%1# hichhelpstheuserssetupthelightingforentiresceneeasily. Sotheydon5t ha"etospendalot of timead$ustinglightinglocationandbrightness. Theconcept of +% is "erysimple.%magine a room has a indo but no light in it. The natural light fromtheoutsideof theroomcomesinthroughtheindosotheroomdoesn5t look completely dark e"en though there is no light in it. Somepeople e"en call this the 6la7y boy lighting6. %ts purpose is alloing theuserstoha"ethemost natural light possibleithout spendingtoomuch time to achie"e it.V-Rayfor SketchUpalsosupports!ighDynamicRange"alues# alsocalled !DR% 0!igh Dynamic Range %mage1. /ith a normal 89bit# :bit perchannel R+, image 03o Dynamic Range %mage1# the brightest hitecolor you can get is R8;;# +8;; and ,8;;. ,ut this is still thousandstimesloerthanhatthesunlightcanproduce. /iththe!DRfleformat# users can ha"e more control ranging from dark to bright. The!DR is a "ery special image fle format. %t usually starts ithprofessional degreephotography# thentransforms to?=bit fullscene image by using professional !DR softare. The beneft of using!DRisthatyoucanusethisfull sceneimageasyourrenderlightsource. %t also can be used as the background rendering.V-Ray for SketchUp also supports regular image fle formats as a lightsourcefor+%. !oe"er# itisstill limitedcomparedtousingan!DRimage format to describe the lighting en"ironment. Together ith otherregular image fle format simulated lighting en"ironments# it is usuallyusedonlyassupportinglightingfor theentirescene. That meansad$ustingthesettingof ma$orlight sourcesisstill a"eryimportantorkinV-RayforSketchUp. /eill discussmoreabouthotouselighting# materials and mapping Render !ptions for V-Ray for SketchUp!pen V-Ray for SketchUp - Render !ptionsThe V-Ray for SketchUp Options controls all rendering parameters. @oucan open this Render Options from &lugins menu abo"e or click directlyon the VRay Options.Sa"e and #oad !ption settingsThere are many Options settings in V-Ray for SketchUp. Users can sa"ethe current settings# or sa"e di.erent fles according to di.erentscenes# di.erentrender-ualitysettings# ordi.erentrenderengines.Arom AileBSa"e to sa"e Options setting. Use ."isopt as the fle format.%t5s about 8C, in fle si7e. /hen the SketchUp fle is sa"ed# all changesinV-RayOptionssettingill alsobesa"ed. UseAileB3oadtoloadsa"ed."isopt Optionsfles. %t ill replacethecurrent settings. UseRestore Defaults to restore the original V-Ray settings.Openfle$hairs-!riginal%skp. Thereare# +8;8# ,8;;# hich is "eryclose to hite.'lick OC to e(it then click on the blue render icon to color the image.The image color becomes "ery close to hite like the image belo.,ecause the chairs and )oor are notassigned to any materials# V-Ray gi"es theob$ectsSketchUp5sdefaulthitelayerasmaterial. To kno ho to assign thematerials to the ob$ects and makead$ustments# e need to open the&roperties tab.,wo ways to assign materials in V-Ray&%'lick in the V-Ray toolbar on the4aterial Editor to open it. 'reate amaterial then in the SketchUp 4aterialclick 6in model6.and click the surfaceto apply the material.)%Select the6&aint ,ucket6and click onthe surface thatyou ant toapply thematerial.F+%Gotheob$ects areappliedithmaterials. @oucanopenthe4aterial Editor to edit and create other materials.Material Editor in V-Ray for SketchUp4aterial editor can be pulled out from the icon under VRay for SketchUp tool bo( or from 4aterial Editor from &lugins V-Ray tab.V-Ray Material EditorV-Ray for SketchUp 5s 4aterial Editor has three parts2-%4aterial /orkplace shos all the selected materials. Right click toadd# import# e(port# rename# pack# remo"e# and select the ob$ects ithcurrent materials # such as assigning current materials to the selectedob$ects# deleting materials that are not used in the scene # and addinglayers ith re)ections# refractions to the materials.%4aterial &re"ie# the Update &re"ie button allos you to pre"iethe ad$usted materials.$%Optionsformaterial control. Theoptionschangeiththeaddedscene materials in section D.'lick on Update pre"ie button to update the pre"ie image to currentmaterials.Di.use #ayer/'olor2 used to apply color on material. The 6m6 bo( on the right is usedto apply pattern and arrange se-uence.Transparency2 used to ad$ust the color transparency. ,lack is completely opa-ue and hite is completely transparent.0ow to add new material/&% Right click on Scene 4aterial# select Ddd ne material# Ddd VRay4tl.)% Right click on Scene 4aterial# select %mport ne material to import asa"ed material fle.0ow to duplicate a material/Under 4aterial /orkplace# right click onthematerial youishtoduplicate# andselect Duplicate. Thisisanother aytoaddanematerial.0ow to change the name of a material/Right click on the name of the material you ish to change# and selectRename. The name of the material can not ha"e a number in the frstdigit or spaces ithin the name.0ow to remo"e material/Right click on the name of the material you ish to delete# and selectremo"e. %f the material being remo"ed is applied to the ob$ects in thescene# V-Ray ill sho a pop-up indo to ask if you ant to remo"e itfor sure.0ow to e1port material/Right click on the material you ish to e(port# and select e(port to e(port this material. The Aile e(tension is ."ismat# the fle is H C,. This fle can be imported# packed or sent to other users later on.0ow to import new material/Right click on the scene material and select import ne material# thenyou can select the material you ant.0ow to pack material/Right clickonthematerial youishtopackandselect pack# Thisfeature is "ery useful# becauseyou cansa"ethete(tures andapre"ie of your material in a single fle.-nother three selections/&%Select Ob$ects by materials2 Selects the ob$ects in the scene iththis material.)% Dpply materials to ob$ect0s12 Dpplies this material to selected ob$ectsin the scene.+% Dpply materials to layer0s12 Dpplies this material to selected layers.Dll the ob$ects in the same layer ill be applied ith this material.2urge unused materials/Right clickonScene4aterialstoselect purgeunusedmaterialstoremo"e materials hich are not applied on the scene ob$ects.You cannot use undo to undo the change in Material Editor.