HDR Light Studio 4.0 User Guide

ContentsInterfaceOverviewPage3TheBasics-HDRCanvasPage6TheBasics-LightListPage7SyntheticLightsPage8CustomFalloffPage12BlendModesPage14PictureLightsPage19SunShadePage20ColorPage22BackgroundSettingsPage30RenderSettingsPage33LiveLightPage35LightPaintPage42LightCamPage46CameraListPage47ProjectMenuPage48HelpMenuPage50KeyboardControls(Windows/Linux)Page51LiveLightControls(Windows/Linux)Page52KeyboardControls(Mac)Page53LiveLightControls(Mac)Page54AppendixHDRLightStudioLivePythonAPIOpenEXRreadmehdrlightstudio4ContentsPage2Show/hidelighthdrlightstudio4InterfaceOverviewMainHDRLightStudioWindow-LightingdesignsarecreatedherePage3DuplicateselectedlightDeleteselectedlightCreateSyntheticLight(Rect,Round,Hex)CreatePictureLightUndo/RedoHDRCanvasExposuresliderHDRCanvasGuidesSelectionLDRPreviewofselectedlightBackgroundSettingsRenderSettings(HDRorEXRles,orLivetoLiveLight)OpenLiveLight&LiveLightsettingsCreateSunShadeSelectedLightPropertiesLightListAlllightsourcesarelistedhereintheorderthelightsarelayeredontheHDRcanvasHDRCanvasLightingdesignsarecreatedhereinreal-timeLiveLightLiveLightSettingsPanelAppearancesettingsUpDirectionFloorShadowBackgroundSettingHDRI,SolidColor,ImageListCamerasLightCammodeCameramovemodeLightPaintmodesReection,Illumination&RimLoad3DmodelintoLiveLighthdrlightstudio4InterfaceOverviewPage4LiveLightmodes-showsreections,illuminationorbothLiveLightprovidestwofunctions:Aninteractiverenderedviewpreviewingthelightingandreectioneffectsoryour3Dmodel.LightPaintenableslightstobeselectedandpositionedbyinteractingdirectlywiththerenderedview.LiveLightloadsadefault3Dmodelofakettlewhenlaunched.It’s3DformisessentiallysphericalandusefulforunderstandingthelightingeffectsofHDRIintheabsenceofloadingyourown3Dscene.••hdrlightstudio4InterfaceOverviewTheHDRLightStudiowindowscanbearrangedflexiblywhateveryourmonitorsetups-fromlaptoptolargedualscreensPage5SmallMonitorLayoutExample1,280x720pixelsLargeMonitorLayoutExample1,920x1,200pixelsDualLargeMonitors-LayoutExample2monitors-1,920x1,200pixels12CreateanewlightsourcebyclickingononeofthecreatelightbuttonsonthetopbarAlightisautomaticallyselectedwhenithasbeencreated.AselectedlightishighlightedorangeintheLightList.ClickanywhereontheHDRCanvas,andtheselectedlightcentrepointwillmoveinstantlytothatclickedposition.Clickdirectlyonthe3DmodelinLiveLighttopositiontheselectedlightusingtheLightPaintmodes.ClickanddragontheHDRCanvas,theselectedlightcentrepointwillfollowyourcursoraroundthecanvas.Theoutlineofthelightshapewillappearasanorangedottedlinewhilstdragging.OncelightshavebeenplacedontotheHDRCanvas,theusercanselectalightusingthreedifferentmethods:1HoverthecursorintheLightList,acrossappearsonthecanvasshowingthelocationofthelightthat’sunderyourcursor.Selectlightsinthelistbyclickingontheirname.2Theusercanrightclickonthecanvastoselectthelight/sunderthecursor.3TheusercanuseLightPainttorightclickdirectlyonthe3DmodelintheLiveLightviewtoselectthelightsource,pleaseseethesectiononLightPaintformoreinformationonselectinglightsusingLightPaint.hdrlightstudio4TheBasics-HDRCanvasPage6CreatelightbuttonsHDRCanvasSelectanddraglightsupanddownthelisttochangetheirlayeringorder.LightsatthetopofthelistareonthetopontheHDRCanvas.TheBackgroundisatthebottomoftheHDRCanvas.Aselectedlightcanbeduplicatedordeletedusingthebuttonsatthetopofthelist.Lightvisibilitycanbeturnedonandoffusingthetickboxatthesideofthelight.PressCTRLandclickonthetickboxtosolothelightandturnoffallotherlights.PressCTRLandclickonthesololightagaintoturnallotherlightsbackon.Doubleclickonalightinthelisttorenamethelight.TheHDRCanvasExposureslideradjuststhebrightnessofthecanvasviewbutdoesnotalteranyofthevaluesinthelightingdesign.It’spurelyusedtoexplorethedynamicrangeofthedesign.hdrlightstudio4TheBasics-LightListPage7SoloalightsourceBulblength50%Bulblength0%Bulblength100%Bulblength50%Bulbposition0%Bulblength50%Bulbposition25%Bulblength50%Bulbposition-50%WattsBrightnessiscontrolledbytheWattsslider(ornumericalinput).BulbLength%Adjustthebulbfromapointsource(0%)throughtoalinearlightthefullwidth(100%).Lightisatitsmaximumbrightnessalongthebulbandfalls-offawayfromit.BulbPositionAdjustthebulbpositionwithinthelightfromthetop(-50)throughtothebottom(+50).FalloffThelightgetsdarkermovingawayfromthebulbandreducestoaminimumvaluespeciedbytheFalloff%value(unlessacustomfalloffisused).WhenFalloffissetto0%,theedgeofthelightistotallydarkandthustheedgeissoft.Thisisgreatforaspotlighteffect.Valuesabove0%willresultinahardedge.OpacityAdjustshowtransparentthelighteffectis.Canalsobeusefulforneadjustments.hdrlightstudio4SyntheticLightsPage8SyntheticLightPropertiesOutbutton‘Off’FalloffinsidelightsboundaryFalloffoutsidelightsboundaryFalloffstopsbeforeitreachesthecornersleavingcornerswithatbrightnessOutbutton‘On’TheFalloffcontinuesrightintothecornerBulblength:0%Bulblength:50%Bulblength:100%Bulblength:0%Bulbposition:50%Bulblength:50%Bulbposition:50%Bulblength:100%Bulbposition:50%BydefaulttheFalloffnishesinsidethelightshape,allowingsoftlightswithaFalloff%settingof0.Byselectingthe‘Out’setting,th