Display Scan Skew - Jelly Effect - UFO Test

Sideways-scanning is vulnerable to jello effect during vertical scrolling at 60 Hertz. Computer monitors rotated in portrait mode is also affected by jelly ... -----------Demos----------- CompareFrameRates:UFO CompareFrameRates:VideoGameMotion CompareFrameRates:VerticalScrolling BlackFrameInsertion PersistenceofVision–OpticalIllusion EyeTrackingMotionBlur–OpticalIllusion PhantomArrayEffect–MouseArrow StuttersandTearing VariableRefreshRateSimulation -----------Tests----------- Ghosting/PursuitCamera BlurTrail/PWM MovingPhoto ChaseSquares MotionPictureResponseTime(MPRT) InversionArtifacts(CheckerboardPattern) AliasingVisibility -----------SpecialTools----------- FrameSkipping–ForDisplayOverclocking RefreshRateWithDecimalDigits StrobeCrosstalkForBlurReduction GtGVersusMPRT Scan-OutSkew–Tilting/JellyEffect BlurBustersLaw–MotionBlurPhysics ColorSequentialRainbowEffect VideoInterlacingSimulation Scan-Out–ForHighSpeedCamera Flicker–HighSpeedVideoorOscilloscope BrowserAnimationTimingPrecisionGraph DisplayScanSkew-JellyEffect Scan-OutSkewing/JellyScrollingEffect TrackyoureyesonthemovingUFOandlines.Observeanylinetilting. Thisisusefulforcheckingwhetheryourdisplayusessequentialscanrefreshorglobalrefresh.Sequentialscanrefreshwillshowatiltingeffectonaverticalmovingline. Sequentialrefreshisusuallybetterforlowerinputlagsincethedisplaycanrefreshinsyncwithvideocabletransmission(DVI,VGA,HDMI,DP) butsuchdisplaysmayhavemorevisiblescan-skewartifactorjelloscrollingeffectatlowerrefreshrates(e.g.50Hzor60Hz). Linemaytiltaslittleasonedegree.Itiseasiertoseescanskewingat60Hzthan120Hz.Itiseasiertonoticeskewingwhenviewingatafurtherviewingdistanceofover2screenwidthsaway. Ifyouaretestingasmartphone(e.g.OnePlus5)oraniPadtabletscreen,tryoutbothscreenrotations.Sideways-scanningisvulnerabletojelloeffectduringverticalscrollingat60Hertz. Computermonitorsrotatedinportraitmodeisalsoaffectedbyjellyscrolling.Higherrefreshrates(120Hz)and/orverticalscanreducejellyscrollingartifacts. Ifyouaretestingagamingmonitor,trybothwithandwithoutyourBlurReductionmode(e.g.LightBoost,ULMB,DyAc,etc).Faster"Speed"showsjellyeffectbetter. Technologieswithscan-outskewing:CRT,OLED,LCD(whenflicker-free/non-strobe) Technologieswithoutscan-outskewing:Plasma,DLP,LightBoost,ULMB Technologieswithsawtoothartifact:Somebillboarddisplays Speed: Pause Slow(MayTiltLess,For60Hz) Default(RecommendedFor60Hz) Fast(MayTiltMore,For60Hzor120Hz) VeryFast(120Hz+,viewfromadistance) UltraFast(120Hz+,viewveryfaraway) ImpossibleFast(240Hz,viewveryfar) Direction: Horiz Vert Bounce: OFF ON Density: SingleLine Low Default High VeryHigh CenterLine: OFF ON FrameRate  fps RefreshRate - Hz PixelsPer Frame - PixelsPer Sec - - ShareThisTest!     IMPORTANT:Closeallappsandotherbrowsertabsandwindowsforbestperformance!KeepAeroturnedon. *Problems?CheckYourBrowser. SupportedBrowserswithVSYNC:Chrome(upto240Hz+),FireFox24+(upto240Hz+),IE10+(Limitedto60Hz). Copyright(C)2017BlurBusters-AllRightsReserved| BlurBusters.com| DiscussionForums| PrivacyPolicy| ContactChiefBlurBuster BlurBusters:Everythingbetterthan60Hz™