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UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.
UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate. UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior. UFO TEST: FRAMESKIPPING Frame Skipping Checker. Frame Skipping Check: Test for dropped frames & missing display refreshes. (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camerado longer
UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This G-SYNC emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on NVIDIA G-SYNC displays, with seamless transitions between framerates. UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate. UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior. UFO TEST: FRAMESKIPPING Frame Skipping Checker. Frame Skipping Check: Test for dropped frames & missing display refreshes. (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camerado longer
UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This G-SYNC emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on NVIDIA G-SYNC displays, with seamless transitions between framerates.UFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior.UFO TEST: DEADPIXEL
The Dead Pixel Simulator. This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. This can help assist purchases and product returns (RMA), especially computer monitors, displays, televisions, B-stock, or other screenswith
UFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other. The chase rectangles are vertically offset slightly to make it easier to seeoverlapping edges
UFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight to UFO TEST: PERSISTENCE 1. Look at stationary UFO. Observe it's just vertical lines. 2. Look at moving UFO. Observe a solid photograph magically appear (on LCD/OLED) NOTE: Test on LCD / sample-and-hold. This effect doesn't occur on impulse-driven displays (CRTs, ULMB, LightBoost, impulsed OLED, or other strobe/flicker technologies) This animation creates apersistence
UFO TEST: FRAMERATES-TEXT Vertical Scrolling Text. This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers. Speed: Pause 120 Pixels Per Second 240 Pixels Per Second 360 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 UFO TEST: BLURBUSTERSLAW Multiple Framerates. Demonstration of Blur Busters Law in Action. 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays such as LCD and OLED. All flicker-free displays are subject to aUFO TEST: BLURTRAIL
Blur Trail. Instructions: Track your eyes on the moving line. Look for artifacts. This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. Lowering monitor brightness may reveal PWM effect of multiple separate UFO TEST: BLACKFRAMES It has long been known that flicker can reduce motion blur. It is why CRT displays still have less motion blur than most LCD displays. Some 120Hz monitors have a strobe backlight that eliminate motion blur. Motion blur reducing strobe backlights (e.g. LightBoost) puts black periods between frames, and is more efficient than this software-based black frame insertion. UFO TEST: ALIASING-VISIBILITY Worst-Case Aliasing Visibility Test. Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate.UFO TEST: GHOSTING
This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts.. In full screen mode, you can also drag to adjust the vertical position of the ghosting test.UFO TEST: VRR
This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying framerate.
UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate.UFO TEST: DEADPIXEL
This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. UFO TEST: FRAMESKIPPING (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camera do longer exposures. UFO TEST: FRAMERATES-VERSUS ATTENTION - You have reached a top secret beta test UFO research facility. Use of alien abduction force is authorized. Restricted area. It is unlawful to enter this area without permission from the UFOcaptain.
UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate.UFO TEST: GHOSTING
This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts.. In full screen mode, you can also drag to adjust the vertical position of the ghosting test.UFO TEST: VRR
This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying framerate.
UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate.UFO TEST: DEADPIXEL
This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. UFO TEST: FRAMESKIPPING (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camera do longer exposures. UFO TEST: FRAMERATES-VERSUS ATTENTION - You have reached a top secret beta test UFO research facility. Use of alien abduction force is authorized. Restricted area. It is unlawful to enter this area without permission from the UFOcaptain.
UFO TEST: EYETRACKING Type of Display: This test shows motion blur on common LCD displays and most OLED displays. (See Why Do Some OLED Displays Have Motion Blur? - If you are using ULMB or LightBoost motion blur reduction, temporarily turn it off for this test. - If you are using a very old LCD, temporarily set brightness to 100% to avoid PWM dimming artifactsin this test.
UFO TEST: FLICKER
WARNING: May cause LCD Image Retention. May cause epileptic siezures. Test For Short Periods Only.Retention will disappear gradually after leaving this screen.UFO TEST: DEADPIXEL
This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly.UFO TEST: SCANOUT
This test is used for experimental verification of Blur Busters scan-out filmreel diagrams. This test is designed for use with camera with a high-speed-video function (480fps+).UFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other.UFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight to UFO TEST: BLURBUSTERSLAW 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays suchas LCD and OLED.
UFO TEST: FRAMERATES-TEXT This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers.UFO TEST: BLURTRAIL
This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. UFO TEST: ALIASING-VISIBILITY Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K display, for a virtually worst-case computer graphics animation, to determine how far UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: STUTTER
G-SYNC also simultaneously (1) reduce input lag, (2) eliminate tearing, and (3) eliminate stutters from framerate fluctuations. This emulates a G-SYNC variable refresh rate display via software interpolation. Also, see TestUFO G-SYNC Demo. These animations are accurate only in a stutter-free web browser. UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: STUTTER
G-SYNC also simultaneously (1) reduce input lag, (2) eliminate tearing, and (3) eliminate stutters from framerate fluctuations. This emulates a G-SYNC variable refresh rate display via software interpolation. Also, see TestUFO G-SYNC Demo. These animations are accurate only in a stutter-free web browser. UFO TEST: FRAMESKIPPING Frame Skipping Checker. Frame Skipping Check: Test for dropped frames & missing display refreshes. (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camerado longer
UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior.UFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other. The chase rectangles are vertically offset slightly to make it easier to seeoverlapping edges
UFO TEST: DEADPIXEL
The Dead Pixel Simulator. This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. This can help assist purchases and product returns (RMA), especially computer monitors, displays, televisions, B-stock, or other screenswith
UFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight toUFO TEST: BLURTRAIL
Blur Trail. Instructions: Track your eyes on the moving line. Look for artifacts. This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. Lowering monitor brightness may reveal PWM effect of multiple separateUFO TEST: SCANSKEW
Scan-Out Skewing / Jelly Scrolling Effect. Track your eyes on the moving UFO and lines. Observe any line tilting. This is useful for checking whether your display uses sequential scan refresh or global refresh. Sequential scan refresh will show a tilting effect on a vertical moving line. Sequential refresh is usually better for lowerinput lag
UFO TEST: FRAMERATES-TEXT Vertical Scrolling Text. This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers. Speed: Pause 120 Pixels Per Second 240 Pixels Per Second 360 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 UFO TEST: BLURBUSTERSLAW Multiple Framerates. Demonstration of Blur Busters Law in Action. 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays such as LCD and OLED. All flicker-free displays are subject to a UFO TEST: ALIASING-VISIBILITY Worst-Case Aliasing Visibility Test. Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gaming UFO TEST: FRAMESKIPPING Frame Skipping Checker. Frame Skipping Check: Test for dropped frames & missing display refreshes. (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camerado longer
UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This G-SYNC emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on NVIDIA G-SYNC displays, with seamless transitions between framerates. UFO TEST: FRAMERATES-VERSUS Frame Rate Versus. AREA 187 - SECRET MOTION TEST INSTALLATION. ATTENTION - You have reached a top secret beta test UFO research facility. Use of alien abduction force is authorized. Restricted area. It is unlawful to enter this area without permission from the UFO captain. All unauthorized personnel must vacate these premises andprepare for
UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gaming UFO TEST: FRAMESKIPPING Frame Skipping Checker. Frame Skipping Check: Test for dropped frames & missing display refreshes. (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camerado longer
UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This G-SYNC emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on NVIDIA G-SYNC displays, with seamless transitions between framerates. UFO TEST: FRAMERATES-VERSUS Frame Rate Versus. AREA 187 - SECRET MOTION TEST INSTALLATION. ATTENTION - You have reached a top secret beta test UFO research facility. Use of alien abduction force is authorized. Restricted area. It is unlawful to enter this area without permission from the UFO captain. All unauthorized personnel must vacate these premises andprepare for
UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: DEADPIXEL
The Dead Pixel Simulator. This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. This can help assist purchases and product returns (RMA), especially computer monitors, displays, televisions, B-stock, or other screenswith
UFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior.UFO TEST: SCANOUT
Display Scan-Out Test for High Speed Cameras. This test is used for experimental verification of Blur Busters scan-out filmreel diagrams. This test is designed for use with camera with a high-speed-video function (480fps+). An example high speed video of TestUFO test pattern: High Speed Videos of This TestUFO on several LCD and OLEDpanels.
UFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight toUFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other. The chase rectangles are vertically offset slightly to make it easier to seeoverlapping edges
UFO TEST: BLURBUSTERSLAW Multiple Framerates. Demonstration of Blur Busters Law in Action. 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays such as LCD and OLED. All flicker-free displays are subject to aUFO TEST: BLURTRAIL
Blur Trail. Instructions: Track your eyes on the moving line. Look for artifacts. This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. Lowering monitor brightness may reveal PWM effect of multiple separate UFO TEST: ALIASING-VISIBILITY Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K display, for a virtually worst-case computer graphics animation, to determine how far UFO TEST: FRAMERATES-TEXT Vertical Scrolling Text. This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers. Speed: Pause 120 Pixels Per Second 240 Pixels Per Second 360 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: STUTTER
G-SYNC also simultaneously (1) reduce input lag, (2) eliminate tearing, and (3) eliminate stutters from framerate fluctuations. This emulates a G-SYNC variable refresh rate display via software interpolation. Also, see TestUFO G-SYNC Demo. These animations are accurate only in a stutter-free web browser.UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This G-SYNC emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on NVIDIA G-SYNC displays, with seamless transitions between framerates. UFO TEST: FRAMESKIPPING Frame Skipping Checker. Frame Skipping Check: Test for dropped frames & missing display refreshes. (1) Take photo of this screen with camera. Screenshots won't work. Use 1/10th second exposure or longer to capture multiple squares. If camera exposure can't be raised, decrease camera ISO and/or reduce monitor brightness, to make camerado longer
UFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight to UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: STUTTER
G-SYNC also simultaneously (1) reduce input lag, (2) eliminate tearing, and (3) eliminate stutters from framerate fluctuations. This emulates a G-SYNC variable refresh rate display via software interpolation. Also, see TestUFO G-SYNC Demo. These animations are accurate only in a stutter-free web browser.UFO TEST: GSYNC
This test simulates the G-SYNC variable refresh rate (VRR) technology. G-SYNC eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This G-SYNC emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on NVIDIA G-SYNC displays, with seamless transitions between framerates.UFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior. UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight toUFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other. The chase rectangles are vertically offset slightly to make it easier to seeoverlapping edges
UFO TEST: DEADPIXEL
The Dead Pixel Simulator. This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. This can help assist purchases and product returns (RMA), especially computer monitors, displays, televisions, B-stock, or other screenswith
UFO TEST: PERSISTENCE 1. Look at stationary UFO. Observe it's just vertical lines. 2. Look at moving UFO. Observe a solid photograph magically appear (on LCD/OLED) NOTE: Test on LCD / sample-and-hold. This effect doesn't occur on impulse-driven displays (CRTs, ULMB, LightBoost, impulsed OLED, or other strobe/flicker technologies) This animation creates apersistence
UFO TEST: ALIASING-VISIBILITY Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K display, for a virtually worst-case computer graphics animation, to determine how farUFO TEST: BLURTRAIL
Blur Trail. Instructions: Track your eyes on the moving line. Look for artifacts. This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. Lowering monitor brightness may reveal PWM effect of multiple separate UFO TEST: BLURBUSTERSLAW Multiple Framerates. Demonstration of Blur Busters Law in Action. 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays such as LCD and OLED. All flicker-free displays are subject to a UFO TEST: FRAMERATES-TEXT Vertical Scrolling Text. This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers. Speed: Pause 120 Pixels Per Second 240 Pixels Per Second 360 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior. UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight toUFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other. The chase rectangles are vertically offset slightly to make it easier to seeoverlapping edges
UFO TEST: DEADPIXEL
The Dead Pixel Simulator. This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. This can help assist purchases and product returns (RMA), especially computer monitors, displays, televisions, B-stock, or other screenswith
UFO TEST: PERSISTENCE 1. Look at stationary UFO. Observe it's just vertical lines. 2. Look at moving UFO. Observe a solid photograph magically appear (on LCD/OLED) NOTE: Test on LCD / sample-and-hold. This effect doesn't occur on impulse-driven displays (CRTs, ULMB, LightBoost, impulsed OLED, or other strobe/flicker technologies) This animation creates apersistence
UFO TEST: ALIASING-VISIBILITY Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K display, for a virtually worst-case computer graphics animation, to determine how farUFO TEST: BLURTRAIL
Blur Trail. Instructions: Track your eyes on the moving line. Look for artifacts. This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. Lowering monitor brightness may reveal PWM effect of multiple separate UFO TEST: BLURBUSTERSLAW Multiple Framerates. Demonstration of Blur Busters Law in Action. 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays such as LCD and OLED. All flicker-free displays are subject to a UFO TEST: FRAMERATES-TEXT Vertical Scrolling Text. This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers. Speed: Pause 120 Pixels Per Second 240 Pixels Per Second 360 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: FRAMERATESREFRESHRATESUPPORTED BROWSERSEYE TRACKING DEMOVIDEO GAME PANNING TESTPERSISTENCE DEMO Blur Busters UFO Motion Tests with ghosting test, 30fps vs 60fps, 120hz vs 144hz vs 240hz, PWM test, motion blur test, judder test, benchmarks, and more.UFO TEST: GHOSTING
Ghosting Test. This test reveals ghosting, coronas, and overdrive artifacts. See LCD Motion Artifacts 101: Introduction and LCD Motion Artifacts: Overdrive for some examples of motion artifacts. In full screen mode, you can also drag to adjust the vertical position of the ghosting test. Pursuit Camera: See Simple Pursuit Camera Instructions. UFO TEST: REFRESHRATE This refresh rate test is designed to accurately measure your refresh rate of your display in Hertz (Hz). Wait at least 30 seconds for an accurate measurement. For best results, close other applications & other browser tabs first. The longer this test runs, the more accurate the refresh rate test becomes.UFO TEST: MPRT
Type of Display: This test is primarily designed for LCD displays (steady backlight, sample-and-hold displays). Instructions: Watch the UFO. Slowly adjust the "Pixel Per Frame" by 1 until background looks like a perfect checkerboard with the dark and light squares as exactly the same size as possible. Once this is done, this will be your display's measured "Moving Picture Response Time" (MPRTUFO TEST: VRR
Variable Refresh Rate Simulation — G-SYNC, FreeSync. This test simulates variable refresh rate technologies including G-SYNC, FreeSync, VESA AdaptiveSync, HDMI 2.1 VRR, and others. Variable refresh rates (VRR) eliminate stutters of fluctuating frame rates, by varying the refresh rate to exactly match a varying frame rate.UFO TEST: FREESYNC
This test simulates the FreeSync variable refresh rate (VRR) technology. FreeSync eliminate stutters by varying the refresh rate to exactly match a fluctuating frame rate. This FreeSync emulation uses interpolation techniques to emulate the look the smoothly variable refresh rate on AMD FreeSync displays, with seamless transitionsbetween
UFO TEST: FLICKER
Flicker Test For High Speed Cameras or Oscillscopes. Test Mode: High Speed Camera — To compare display refresh behavior. This test needs a camera with a high-speed-video function (480fps+). An example recording is High Speed Video of LightBoost. This test is useful for capture display refreshing behaviour, including scanout behavior. UFO TEST: EYETRACKING Explanation: You are seeing motion blur caused by eye tracking on a sample-and-hold display. Eye movement causes the vertical lines to be blurred into thicker lines, filling the black gaps. This is motion blur from persistence (MPRT) instead of pixel transitions (GtG). See GtG versus MPRT. Low persistence displays (such as CRT or gamingUFO TEST: CROSSTALK
This test is for Motion Blur Reduction modes in displays and gaming monitors including ULMB / Blur Reduction / DyAc / MOTION240 / LightBoost / etc.. This test will reveal double-image effects caused by strobe crosstalk. Blur Reduction modes use a strobe backlight or scanning backlight toUFO TEST: CHASE
Instructions: Adjust the distance between rectangles until the motion blur of the two rectangles begin to touch each other. On faster-responding displays, you can bring the rectangles closer together before the motion blur/ghosting touches each other. The chase rectangles are vertically offset slightly to make it easier to seeoverlapping edges
UFO TEST: DEADPIXEL
The Dead Pixel Simulator. This test generates fake dead pixels on displays, to help you understand what malfunctioning pixels look like. Stuck pixels are dots of colors that fail to refresh properly. This can help assist purchases and product returns (RMA), especially computer monitors, displays, televisions, B-stock, or other screenswith
UFO TEST: PERSISTENCE 1. Look at stationary UFO. Observe it's just vertical lines. 2. Look at moving UFO. Observe a solid photograph magically appear (on LCD/OLED) NOTE: Test on LCD / sample-and-hold. This effect doesn't occur on impulse-driven displays (CRTs, ULMB, LightBoost, impulsed OLED, or other strobe/flicker technologies) This animation creates apersistence
UFO TEST: ALIASING-VISIBILITY Instructions: Slowly move further away from your display until you can't see aliasing. Description: This test allows you to determine how far away you can get from your display before you can no longer see the benefits of the resolution of your display. This is useful in determining the distance from a 4K display, for a virtually worst-case computer graphics animation, to determine how farUFO TEST: BLURTRAIL
Blur Trail. Instructions: Track your eyes on the moving line. Look for artifacts. This is useful for checking for temporal elements of your display refresh. Faster moving line is better/easier for detecting artifacts. - Detect PWM dimming in LED-backlit LCD displays. Lowering monitor brightness may reveal PWM effect of multiple separate UFO TEST: BLURBUSTERSLAW Multiple Framerates. Demonstration of Blur Busters Law in Action. 1ms of frame visibility time equals 1 pixel of display motion blur per 1000 pixels/second. This affects modern sample-and-hold displays such as LCD and OLED. All flicker-free displays are subject to a UFO TEST: FRAMERATES-TEXT Vertical Scrolling Text. This screen compares frame rates with vertical scrolling. If using a 120Hz monitor, then 120fps is automatically included (30fps vs 60fps vs 120fps) in supported browsers. Speed: Pause 120 Pixels Per Second 240 Pixels Per Second 360 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 ----------- Demos ----------- Compare Frame Rates: UFO Compare Frame Rates: Vertical Scrolling Compare Frame Rates: Marquee Black Frame Insertion Persistence of Vision – Optical Illusion Eye Tracking Motion Blur – Optical Illusion Phantom Array Effect – Mouse Arrow Stutters and Tearing Variable Refresh Rate Simulation ----------- Tests ----------- Ghosting / Pursuit Camera Blur Trail / PWM Moving Photo Chase Squares Motion Picture Response Time (MPRT) Inversion Artifacts (Checkerboard Pattern) Aliasing Visibility ----------- Special Tools ----------- Frame Skipping – For Display Overclocking Refresh Rate With Decimal Digits Strobe Crosstalk For Blur Reduction GtG Versus MPRT Scan-Out Skew – Tilting / Jelly Effect Video Interlacing Simulation Flicker – For High Speed Camera Browser Animation Timing Precision GraphMultiple Framerates
Welcome to Blur Busters UFO Motion Tests. This screen compares multiple framerates. If using a 120Hz monitor, then 120fps is
automatically added to this test (30fps vs 60fps vs 120fps) in supported browsers . Try these additional tests: Eye Tracking Demo | Persistence Demo | Ghosting Test | Black Frame Insertion Demo | MORE TESTS IN SELECTABLE LISTABOVE!
Count Of UFOs: 1 UFO 2 UFOs 3 UFOs 4 UFOs 5 UFOs 6 UFOs Background: None Stars Speed: 120 Pixels Per Second 240 Pixels Per Second 480 Pixels Per Second 720 Pixels Per Second 960 Pixels Per Second 1440 Pixels Per Second 1920 Pixels Per Second 2880 Pixels Per Second 3840 Pixels PerSecond
You must enable JavaScript to pilot the Test UFO.Frame
Rate
60 fps
Refresh
Rate
- Hz
Pixels
Per Frame
16
Pixels
Per Sec
960
UNSUPPORTED:
Generic Webkit can't directly access VSYNC.Share This Test!
IMPORTANT: CLOSE ALL APPS AND OTHER BROWSER TABS AND WINDOWS FOR BEST PERFORMANCE! KEEP AERO TURNED ON. *Problems? Check Your Browser . Supported Browsers with VSYNC: Chrome (up to 240Hz+), FireFox 24+ (up to 240Hz+), IE 10+(Limited to 60Hz).
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