[agumonkey]

Game renderers do sample time too, for per-object motion blur[1] and sometimes full-scene blur or AA. To push the idea further, research has been done around 'frameless' renderers, where you never render a complete frame but sample ~randomly at successive times and accumulate into the frame(sic)buffer. At low resolution it feels weird but very natural, computed persistence of vision : https://www.youtube.com/watch?v=ycSpSSt-yVs . I love how even at low res, you get valuable perception.

[1] some renderers even take advantage of that to increase performance since you get a more human oriented feel by rendering less precisely.

[barium]

Speaking of "frameless" rendering, I noticed during Carmack's Oculus keynote (https://www.youtube.com/watch?v=gn8m5d74fk8#t=764), he talks about trying to persuade Samsung to integrate programmable interlacing into their displays in order to give dynamic per-frame control over which lines are being scanned.

This would give you the same "adaptive per-pixel updating" seen in your link, though primarily to tackle the problems with HMDs (low-persistence at high frame-rates).

[dgallagher]

This AnandTech overview of nVidia's G-Sync is worth reading (meshes a bit with what Carmack mentioned about CRT/LCD refresh rates in that talk): http://www.anandtech.com/show/7582/nvidia-gsync-review

It's a proprietary nVidia technology that essentially does reverse V-Sync. Instead of having the video card render a frame and wait for the monitor to be ready to draw it like normal V-Sync, the monitor waits for the video card to hand it a finished frame before drawing, keeping the old frame on-screen as long as needed. The article goes into a little more detail; they take advantage of the VBLANK interval (legacy from the CRT days) to get the display to act like this.

[agumonkey]

Weird, I missed this part. Vaguely reminds me of E. Sutherland fully lazy streamed computer graphics generation since they had no framebuffer at the time.

[mietek]

Fantastic technique. Can’t believe it’s been almost 10 years since this video. Do you know if there are is any follow-up research being done?

[agumonkey]

I did search for related research a while back with no results. Tried to leverage reddit too, someone asking the very same was told this : http://www.reddit.com/r/computergraphics/comments/12gs2a/ada...