1447: Flycast - less input lag than DC, PS3, NEOGEO, & MAME w/ my Dreamcast fighting games! SF3 JJBA

Channel:

smbhax 2000

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1,790

Published on June 19, 2023 12:50:02 AM ● Video Link: https://www.youtube.com/watch?v=OJGXqyIx_r8

Game:

Street Fighter III (1997)

Duration: 48:47

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2

Extremely crude, definitely unscientific comparison input lag testing of some Japanese Dreamcast fighting games on my particular set up.

Short version: on my set-up, Dreamcast emulator Flycast ran my Dreamcast fighting games with about 2.5 frames less input lag than the actual Dreamcast, a frame or two less delay than a NEOGEO MVS (KOF 2000), and about a frame less delay than MAME 0.255 (arcade versions of SFIII 2nd & 3rd, and KOF 2000).

I counted delay frames from the 60 fps cell phone footage (you can do this too: play the video at 60 fps, Pause, and press "." on the keyboard to advance frame-by-frame; in my counting, the first frame without any further downward button press movement is frame zero):

~ Frames of light punch input lag on my set-up:

Capcom vs. SNK Pro
Dreamcast: 3-4
Flycast: 1

Capcom vs SNK 2
Dreamcast: 3-4
Flycast: 1

Guilty Gear X
Dreamcast: 3
Flycast: 1

JoJo's Bizarre Adventure - Heritage for the Future
Dreamcast: 4
PS3 demo: 3
Flycast: 1-2

Marvel vs. Capcom 2
Dreamcast: 3
PS3: 2-3
Flycast: 1

SoulCalibur
Dreamcast: 4
Flycast widescreen & internal 8K: 2
Flycast: 2

Street Fighter III: 2nd Impact - Giant Attack
Dreamcast: 4
Flycast: 2
MAME: 3

Street Fighter III: 3rd Strike
Dreamcast: 4
Flycast: 1
MAME: 2

The King of Fighters 2000
Dreamcast: 7
NEOGEO: 5
Flycast: 3-4
MAME: 5-6

(Pre-bankruptcy SNK NEOGEO KOF games intentionally add ~3 frames of delay to attacks, prioritizing movement.)

My input delay playlist: https://www.youtube.com/playlist?list=PLZO3OPzPjIzMl-jcYl0YFhwRYTyP5R8M3

0:00 - CvSPro DC
2:41 - CvSPro Flycast
4:05 - CvS2 DC
4:28 - CvS2 Flycast
5:19 - GGX DC
5:42 - GGX Flycast
6:04 - JJBA DC
8:26 - JJBA PS3 (demo)
9:09 - JJBA Flycast
9:43 - MvC2 DC
10:06 - MvC2 PS3
10:32 - MvC2 Flycast
11:00 - SC DC
11:40 - SC Flycast 8k
13:10 - SC Flycast 480p
14:20 - 2nd DC
15:08 - 2nd Flycast
16:04 - 2nd MAME
16:51 - 3rd DC
17:17 - 3rd Flycast
17:47 - 3rd MAME
18:38 - 2000 DC
19:07 - 2000 NEOGEO
20:32 - 2000 Flycast
21:25 - 2000 MAME
24:16 - results
29:24 - Flycast "optimizations"
36:50 - RivaTuner Statistics Server (RTSS)
37:50 - Nvidia Control Panel
41:36 - DXDiag
43:56 - no(?) Flycast 2nd Impact widescreen
47:37 - MAME 2nd Impact widescreen

I'm running Flycast and MAME on a 2020 mid-range gaming laptop with 16 GB RAM, an Intel i7-10750H CPU @ 2.60 GHz, and an NVIDIA GeForce GTX 1660 Ti GPU. The monitor is a fairly low-latency 1080p Acer thing; console video handled by OSSC. The stick is a Hori Real Arcade Pro V 2017 Edition for PS3/4, modded w/ Sanwa buttons & lever, connecting to the DC and NEOGEO with Brook Super Converters.

Raising Flycast's internal resolution from DC default 480p to 8K doesn't seem to add any delay. The Widescreen setting works really well with MvC2, SC, CvS2, and probably CvSPro, although that one has colored side bars at the far sides of the stages.

I made a number of tweaks to my Windows set-up based on stuff I found Googling about input delay for Flycast. The two I'm pretty sure account for most of the lag savings are turning off VSync in Flycast's "Video" settings, and "Multi-threaded emulation" in its "Advanced" settings (apparently there's a known Flycast bug that "Threaded rendering adds a frame of input lag" https://github.com/libretro/flycast/issues/738 ).

If you want to see the other silly maybe lag-reducing but completely untested-by-me "tips" I rattle on about at the end of the video, that bluish screen with all the words on it in the shaky cam footage was my page of notes on Flycast: https://paleface.net/cgi-bin/gdb/n.pl?c=1615

6/18/23

#dreamcast #ps3 #inputlag #inputdelay #fightinggames #flycast #mame #pcgaming #retrogaming #retrogames #sf3 #streetfighter #streetfighter3 #3rdstrike #soulcalibur #kof2000 #kingoffighters #kof #kingoffighters2000 #neogeo #mvc2 #marvelvscapcom2 #cvs2 #capcomvssnk2 #capcomvssnkpro #cvspro #jjba #hftf #jojosbizarreadventure #jojos #jojo #gaming #gamingvideos #ggx #guiltygearx #rtss

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