Re: ULMB vs. Lightboost
Posted: 13 Jan 2014, 23:24
Yup, I only meant disadvantageous compared to LightBoost/ULMB's elimination of motion blur. I see how others might misinterpret what I wrote and I'm sorry to make you type that lengthy explanation when I could have easily clarified my statement.Chief Blur Buster wrote:The way you phrased it, sounds bad.Karnaj wrote: but its disadvantage is variable motion blur, which worsens as frame rates drop.![]()
So let's clarify things.
I must point out it is not a disadvantage at all relative to non-LightBoost.
However, the fact that it doesn't eliminate motion blur, is, indeed a disadvantage relative to LightBoost.
For example:
G-SYNC 30fps does not have worse motion blur than non-GSYNC non-LightBoost 30fps.
G-SYNC 60fps does not have worse motion blur than non-GSYNC non-LightBoost 60fps.
etc.
The motion blur is variable only because it's a variable refresh rate technology.
i.e. motion blur of G-SYNC 45fps is exactly in between non-GSYNC 30fps and non-GSYNC 60fps.
The variable motion blur effect is extremely subtle compared to stutters or tearing.
As you can see at http://www.testufo.com ... The lower frame rate UFOs have more motion blur than the higher frame rate UFOs. It's no different on G-SYNC. The fact is that you've able to obtain the most perfect possible non-strobed frame rates possible, e.g. 47fps looks like a non-GSYNCd 47fps@47Hz monitor. But as soon as framerate changes to say, 75fps, it looks the same as a non-GSYNCd 75fps@75Hz. The framerate==refreshrate harmony is the source of all ultrasmooth motion. When you play 60fps@60Hz, and everything suddenly slows down to 30fps, on a non-GSYNC monitor, you're suddenly getting a lot more motion blurring during the moment it slows down to 30fps. That's bad. Sudden changes in motion blur as the framerate quantizes between big steps. Now, GSYNC eliminates that by giving you a CVT (Continuously Variable Transmission) between frame rates on GSYNC, rather than the abrupt gearshifting effect (jerky jumps between framerates / jerky changes in motion blur) on non-GSYNC.
So, you see, the variable motion blur is actually an advantage relative to non-GSYNC, but only a disadvantage relative ot LIghtBoost. It is totally essential, to keep this in perspective.
