John Carmack's banner

John Carmack

@ID_AA_Carmack • 1,698,450 subscribers

AGI at Keen Technologies, former CTO Oculus VR, Founder Id Software and Armadillo Aerospace

Shorts

Staring into the matrix, looking at some questionable blocking artifacts.

Staring into the matrix, looking at some questionable blocking artifacts.

273,353 Aufrufe

Videos

Anya Rossi

sweetdream.ai

SweetDream.ai•Sponsored•Livecam

Watch Anya Live

Anya is streaming live right now! Join her private show and enjoy exclusive content.

Exclusive private shows

1.2k viewers online

Private Show

Join now for exclusive access

Free preview available • Premium content

I never saw an official video, so here is my little bit from the induction of Quake into the Strong Museum’s World Video Game Hall of Fame last month.

I never saw an official video, so here is my little bit from the induction of Quake into the Strong Museum’s World Video Game Hall of Fame last month.

2,055,963 Aufrufe • vor 11 Monaten

Marty at Id did ask for a video from me, but there was a miscommunication about when he needed it, so I didn’t get it done by the actual anniversary…

Marty at Id did ask for a video from me, but there was a miscommunication about when he needed it, so I didn’t get it done by the actual anniversary…

679,026 Aufrufe • vor 4 Monaten

There is an art installation at DFW airport that looks like CG aliasing and I hate it.

There is an art installation at DFW airport that looks like CG aliasing and I hate it.

285,610 Aufrufe • vor 2 Jahren

I love the Arcade1Up Official cabinets that Trista has given me the last couple years. Yes, you can run free emulators on almost any device, but having the games running in a cabinet with arcade controls is a much better experience, even though it is just a packaged emulator. I was pretty decent back in the day, but after playing these for a while, I got farther than young-John ever did. Recently I played an original Joust machine at Cidercade and on my second game, I blew away my previous best score at home — 158k! The subtle control latency of the emulated experience versus the real thing matters! I measured the press-to-flap latency at home, and it looks like about 80ms. It isn’t blatantly obvious, but it shows up in the game feel and control error rate. I know there is a hard core community around emulator optimization, and with high refresh rate monitors it is possible to get objectively lower latency than the original CRT based hardware, but there is no reason the popular consumer versions can’t get most of the way there. This is probably just a matter of backing up a triple buffered swap chain or extra layers of image scaling / UI compositor getting in the way. Phase sync to the last quarter or so of the video interval and swap to the actual display should cut that latency in half. Doing the bit plane graphics and scaling directly to /dev/fb0 with software would be a guaranteed low latency path if you can get vsync timing. Trivia: The real Joust, and all the classic Williams games, didn’t even page flip, they just drew straight to the frame buffer, paying attention to the scan time.

I love the Arcade1Up Official cabinets that Trista has given me the last couple years. Yes, you can run free emulators on almost any device, but having the games running in a cabinet with arcade controls is a much better experience, even though it is just a packaged emulator. I was pretty decent back in the day, but after playing these for a while, I got farther than young-John ever did. Recently I played an original Joust machine at Cidercade and on my second game, I blew away my previous best score at home — 158k! The subtle control latency of the emulated experience versus the real thing matters! I measured the press-to-flap latency at home, and it looks like about 80ms. It isn’t blatantly obvious, but it shows up in the game feel and control error rate. I know there is a hard core community around emulator optimization, and with high refresh rate monitors it is possible to get objectively lower latency than the original CRT based hardware, but there is no reason the popular consumer versions can’t get most of the way there. This is probably just a matter of backing up a triple buffered swap chain or extra layers of image scaling / UI compositor getting in the way. Phase sync to the last quarter or so of the video interval and swap to the actual display should cut that latency in half. Doing the bit plane graphics and scaling directly to /dev/fb0 with software would be a guaranteed low latency path if you can get vsync timing. Trivia: The real Joust, and all the classic Williams games, didn’t even page flip, they just drew straight to the frame buffer, paying attention to the scan time.

61,765 Aufrufe • vor 1 Jahr

Keine weiteren Inhalte verfügbar