- Dec 13, 2012
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When Andy of nVidia was asked whether LightBoost could be combined with G-GSYNC, AndyBNV of nVidia confirmed on NeoGaf:
This scientifically confirms strobing is used, because of the law of vision physics — there is scientifically no other way to do LightBoost-matching low-persistence (1ms) modes without ultrahigh refresh rates (e.g. 1000fps@1000Hz) or frame interpolation (e.g. 200fps->1000fps). Since both are unlikely with nVidia G-SYNC, this officially confirms backlight strobing to keep visible frame displaytimes short (aka persistence). In addition, John Carmack confirmed on twitter that a better backlight strobe driver is included:
Both statements by Andy and John, are confirmations that official backlight strobing (LightBoost) is part of G-SYNC, a 2D motion blur elimination, finally officially sanctioned by nVidia. The question becomes: Can both be combined into adaptive-rate backlight strobing?
UPDATE: Your existing ASUS VG248QE monitor is already upgradeable to G-SYNC!
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For those not aware: Strobe backlights eliminate motion blur on LCD's The backlight is turned off while waiting for pixel transitions (unseen by human eyes), and the backlight is strobed only on fully-refreshed LCD frames (seen by human eyes). The strobes can be shorter than pixel transitions, breaking the pixel transition speed barrier! This allows LCD to have motion as clear as a CRT.
Since GtG (pixel transitions) is now shorter than persistence (pixel staticness), most motion blur today is now caused by persistence, as demoed by www.testufo.com/eyetracking
AndyBNV said:“We have a superior, low-persistence mode that should outperform that unofficial [LightBoost] implementation, and importantly, it will be available on every G-SYNC monitor. Details will be available at a later date.”.
This scientifically confirms strobing is used, because of the law of vision physics — there is scientifically no other way to do LightBoost-matching low-persistence (1ms) modes without ultrahigh refresh rates (e.g. 1000fps@1000Hz) or frame interpolation (e.g. 200fps->1000fps). Since both are unlikely with nVidia G-SYNC, this officially confirms backlight strobing to keep visible frame displaytimes short (aka persistence). In addition, John Carmack confirmed on twitter that a better backlight strobe driver is included:
John Carmack (@ID_AA_Carmack) on Twitter said:“@GuerillaDawg the didn’t talk about it, but this includes an improved lightboost driver, but it is currently a choice — gsync or flashed.”
Both statements by Andy and John, are confirmations that official backlight strobing (LightBoost) is part of G-SYNC, a 2D motion blur elimination, finally officially sanctioned by nVidia. The question becomes: Can both be combined into adaptive-rate backlight strobing?
UPDATE: Your existing ASUS VG248QE monitor is already upgradeable to G-SYNC!
______________
For those not aware: Strobe backlights eliminate motion blur on LCD's The backlight is turned off while waiting for pixel transitions (unseen by human eyes), and the backlight is strobed only on fully-refreshed LCD frames (seen by human eyes). The strobes can be shorter than pixel transitions, breaking the pixel transition speed barrier! This allows LCD to have motion as clear as a CRT.
Since GtG (pixel transitions) is now shorter than persistence (pixel staticness), most motion blur today is now caused by persistence, as demoed by www.testufo.com/eyetracking
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