The flickering was highly noticeable on my MacBook Air until I lowered the screen brightness. An interesting side-effect of the rapid switching is that whenever I blink, I could see the artifacts. Or when rapidly moving my head. I figure persistence of vision and peripheral vision might have something to do with it. Also smaller tile size appears to reduce flickering.
Same effect is seen with LED brake lights or even Christmas lights... they appear to flicker if you are moving when you look at them, particulary if they are in your peripheral vision field.
I'm particulary sensitive to this; back in the days of CRT monitors I could not use any with a refresh rate of less than about 75Hz without being consciously aware of the flicker.
I'll bet you see rainbow artifacts on every last one-chip DLP/LCoS and yellow flashes on plasma, too.
On topic, the second thing I noticed (after the bloody obvious flicker even with no eye movement) was a pattern marking the boundary between the two halves of the images. Then I remembered that I was running my retina display at a higher than native resolution, and scaling of course introduces artifacts at edges.
Besides, who doesn't love 10% CPU usage to display a static image?
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The flickering was highly noticeable on my MacBook Air until I lowered the screen brightness. An interesting side-effect of the rapid switching is that whenever I blink, I could see the artifacts. Or when rapidly moving my head. I figure persistence of vision and peripheral vision might have something to do with it. Also smaller tile size appears to reduce flickering.
Same effect is seen with LED brake lights or even Christmas lights... they appear to flicker if you are moving when you look at them, particulary if they are in your peripheral vision field.
I'm particulary sensitive to this; back in the days of CRT monitors I could not use any with a refresh rate of less than about 75Hz without being consciously aware of the flicker.
I'll bet you see rainbow artifacts on every last one-chip DLP/LCoS and yellow flashes on plasma, too.
On topic, the second thing I noticed (after the bloody obvious flicker even with no eye movement) was a pattern marking the boundary between the two halves of the images. Then I remembered that I was running my retina display at a higher than native resolution, and scaling of course introduces artifacts at edges.
Besides, who doesn't love 10% CPU usage to display a static image?
The side-effect I think is saccadic masking: http://en.wikipedia.org/wiki/Saccadic_masking
Viewing it in Chrome on Xubuntu made me have a seizure.