JohnCarmack

5 ms·

1.
by JohnCarmack 6y ago
I can certainly see a lot of parallels with Oculus / Facebook. Perhaps unusually, I actually wanted FB to impress itself more strongly on Oculus post acquisition because, frankly, Oculus was a bit of a mess. Instead, Oculus was given
2.
by JohnCarmack 7y ago
My primary concern is for immersive VR media on our Go and Quest platforms, which use Snapdragon 821 and 835 SoC, respectively. The 821 doesn’t support 10 bit on anything, and the 835 only supports it on h265. Software decoding a 4k60 video
3.
by JohnCarmack 8y ago
I was prepared to blend the edges, but it turned out not to be necessary. If the compression ration was increased enough that there were lots of artifacts in the low res version it might be more important. I was originally going to put it i
4.
by JohnCarmack 8y ago
I just tried, and while it does decode a 6kx3k 60 fps video, which is very admirable, it doesn't hold 60 fps while doing it. There are probably encoding options to minimize work on the decoder that could let you push it a bit more.
5.
by JohnCarmack 8y ago
Need some form of RGB+D for that. I have a player for that, and sometimes it looks fantastic, but the silhouette edge artifacts can sometimes look really bad. Considering some ways of "relaxing detail around the edges".
6.
by JohnCarmack 8y ago
In the center of the lenses, the circumference resolution is a bit over 5120, but definitely less than 5760. Even at 5120, it is a bit overkill (and potentially aliasing) at the edges: https://twitter.com/ID_AA_Carmack&#x2F
7.
by JohnCarmack 8y ago
No, Exynos has the same block limit as the snapdragon chips -- 4k60. The difference is that Exynos doesn't have the same 4096 maximum dimension limit, so it can do 5120x2560 (monoscopic) at 30 fps, while snapdragon can only decode 409
8.
by JohnCarmack 8y ago
Zuck is very courteous and open to other people's perspectives. Gates was sharp and no-nonsense when I had a meeting with him. I haven't met Bezos.
9.
by JohnCarmack 8y ago
Years ago, I felt burned when I wrote several articles for #AltDevBlogADay, and they vanished. I have much more confidence that what I write on FB won't vanish. I agree it isn't a great platform for writing, but I only write pub
10.
by JohnCarmack 9y ago
I am aware that my presentations aren't optimal for communicating targeted information, and it does weigh on me more and more as the years go by. So far, I haven't been able to justify to myself the time required to do a really pr
11.
by JohnCarmack 11y ago
Following up on the links you gave me on Twitter. These two fall into the awful pop-sci writing category: http://www.economist.com/blogs/freeexchange/2013/09/working-... “And it seems that more productiv
12.
by JohnCarmack 11y ago
I find these “shorter work weeks are just as effective” articles to be nonsense, at least for knowledge workers with some tactical discretion. I can imagine productivity at an assembly line job having a peak such that overworking grinds so