KQM | Genshin Impact - hitlag-extension-testing

Yuehai Ticketing SecretaryBOTApr 25, 2021 4:19 PM

<@156549756074590220> - Deployables-Ignore-Cutscenes-and-NA-Hitlag. As an author, It is your responsibility to complete the ticket - Take advice constructively - NO disrespectful behavior - The ticket will be scrapped if: No activity > 1 week or open for > 1 mo. - When done, type $close

Theory/Finding/Bug: Title of your submission Evidence: Explanations with calculations and/or Youtube/Imgur proofs Significance: Conclusion

KourinnApr 25, 2021 5:58 PM

Finding: * Deployables (skills and constructs that stay on the field for a set amount of time) do NOT have duration extended by normal attack hitlag. The duration is only affected by their own activation hitlag and single-player world pauses (menu, character death, etc). * Buffs, Auras, and Deployables do NOT have duration extended by other Elemental Burst animations. Significance: * Nothing new for hitlag extension. Verified that NA hitlag extension only applies to the character/enemy buffs/infusions, not the source of the effect. Field buffs/infusions like Bennet's Q and Chongyun's E do NOT stay on the field longer due to NA hitlag. Hitlag will extend the 2+ second buff duration from the last received buff tick, but this is negligible. * Possibly a footnote in Hitlag Extension that burst cutscene (Xiao) or activation hitlag (Xiangling) increases its own duration (or just delays duration start), but not of other, already-active buffs/deployables. Not sure if anything worthwhile will come from this ticket. Evidence: Timestamps are below (minute : second : frames/60). I can upload video if necessary, but I haven't done so because nothing new was learned. Moved evidence to new posts due to character limit.(edited)

~~Xiao (w/ Anemo Res.) vs Cryo Regisvine~~ flawed test due to some plunging, redone below

1:30:41 Q press 1:31:36 CD visible w/ 16.6s 1:31:43 CD 16.5s 1:31:47 char switch lit up (inputs allowed) some NA spam (should extend by ~2s hitlag) 1:48:16 CD End 1:49:58 buff ended? (NA1 w/o Anemo, not frame perfect ending) Q buff lasted over 17s.

Xinyan + Ganyu (no timestamps, no video)

Activate Xinyan E Shield, self infuse pyro ALT+SWAP to use Ganyu burst pyro infusion disappears mid burst cutscene

(edited)

Ayzel | high ping revolutionApr 25, 2021 6:38 PM

It'd be nice if you could upload vids to youtube just so that we can include video evidence with the ticket; could you do that?

KourinnApr 25, 2021 6:40 PM

Yeah I can, although I'd want to redo the Xiao test for more accurate numbers. I think much of the extended duration came from animation/cutscene, not hitlag.

Ayzel | high ping revolutionApr 25, 2021 7:53 PM

btw when will you be done with Xiao test

KourinnApr 25, 2021 8:03 PM

Should be sometime today. Once I'm done frame counting, I'll clip all the tests and upload to youtube. Still got about 15s left to frame count:

Ayzel | high ping revolutionApr 25, 2021 8:09 PM

sounds good

KourinnApr 25, 2021 11:08 PM

Xiao vs Cryo Regisvine redone (more NA spam, no charge attacks or plunges). Finding: Duration appears to be calculated from the frame the CD starts, which matches when the Tattoo lights up. Extended duration after the CD start is entirely due to hitlag, not remaining animation. Animation may only appear to extend duration because CD start is delayed. Youtube: https://youtu.be/2HpPqt7Jh2A Timestamps: https://docs.google.com/spreadsheets/d/1WAEtYnrrxzRK_Ik2X4QanFpTJZa-ThVxXFyyTgEkwlc/edit?usp=sharing Relevant Timestamps (timestamps are pre-editing; when comparing to youtube, subtract 1:22:00 from timestamp).

Time Note Hitlag 1:30:45 Q press 1:31:13 Tattoo lit 1:31:40 UI loads 1:31:41 CD start 16.6s 1:31:48 CD 16.5s 1:31:51 Party lit up, char swap allowed Hitlag counting... (see Google Sheet for full details) 1:48:19 Q CD ends Hitlag counting... 1:49:35 N2 meshing (weapon left side) 1:49:36 N3 meshing (weapon right side) 1:49:48 N3 start 1:49:54 N3 stop 0:00:06 1:50:06 N3 meshing (weapon in right hand) 1:50:07 N4 meshing (weapon by left hand) 1:50:19 N4A start (phys, no anemo) Total Hitlag 0:03:25

CD w/ Anemo Resonance = 18s * (1 - 0.05) = 17.1s 1:30:45 Q press 1:31:13 Tattoo lit 1:31:40 UI loads 1:31:41 CD start 16.6s 1:31:48 CD 16.5s 1:31:41 + (-16.6 + 17.1) * 60 = 1:31:11 1:31:48 + (-16.5 + 17.1) * 60 = 1:31:12 Tattoo lit ~= CD start

Base Duration + Hitlag = 15:00 + 03:25 = 18:25 Tattoo lit to N3 Meshing start 18:23 Tattoo lit to N3 Meshing end 18:53

I'll upload the other videos later. This took longer than expected.(edited)

Eric Banker

2021 04 25 xiao hitlag extension

2021-04-25 Genshin Impact Hitlag Extension

Xiao Redone Time,Note,Hitlag,Duration N3 Start,Duration N3 End,Base + Hitlag,CD,CD Start 1:30:45,Q press,0:18:51,0:19:21,0:18:25,17.1 1:31:13,Tatto lit,0:18:23,0:18:53 1:31:40,UI loads,0:17:56,0:18:26 1:31:41,CD start 16.6s,0:17:55,0:18:25,1:31:11 1:31:48,CD 16.5s,1:31:12 1:31:51,Party lit up, c...

KourinnApr 26, 2021 11:28 PM

Bennet vs Cryo Regisvine: https://youtu.be/ie34i2e9A8o (timestamps are pre-editing, subtract 15:00 if comparing to youtube)

time note 16:11 Q press 16:46 CD start NA spam (should add ~1s via hitlag) 28:41 last heal 29:01 AOE fully faded Q circle lasted ~12s

Eric Banker

2021 04 25 bennet hitlag extension

Chongyun T3 E vs Cryo Regisvine: https://youtu.be/5gx9ReKNVZ0 (timestamps pre-editing; subtract 1:23:00 if comparing to youtube)

1:26:21 hitlag start N1 1:26:32 hitlag end N1 (11f) 1:26:58 hitlag start N2 1:27:08 hitlag end N2 (10f) 1:28:00 hitlag start N3 1:28:07 hitlag end N3 (7f) 1:31:53 E press 1:32:28 E CD Start 14.9s 1:33:15 hitlag start N1 1:33:26 hitlag end N1 (11f) 1:33:50 hitlag start N2 1:34:03 hitlag end N2 (13f) 1:34:51 hitlag start N3 1:35:03 hitlag end N3 (12f) more NA spam (total ~1.5s hitlag inside E duration) 1:42:32 CD 4.9s 1:42:39 AOE fully faded 1:44:43 CD 2.7s 1:44:59 T3 Infused Weapon FX end E circle lasted ~10s

(edited)

Eric Banker

2021 04 25 chongyun hitlag extension

Xiangling (C4) vs Cryo Regisvine: https://youtu.be/fxvisWyC5lk (timestamps pre-editing; subtract 1:07:00 if comparing to youtube)

1:33:28 Q press 1:33:47 Q CD Start, Q hitlag start 1:33:54 Q hitlag end (7f) 1:34:06 Q hitlag start 1:34:13 Q hitlag end (7f) 1:34:27 Pyronado Entity spawns 1:34:35 Q hitlag start 1:34:42 Q hitlag end (7f) some NA spam (should extend by ~2s hitlag) 1:48:10 Pyronado Entity disappears 5.6s cd 1:48:15 5.5s cd

durations: - from Q press: 14:42f - from CD start: 14:23f - from entity spawn: 13:43f

(edited)

Eric Banker

2021 04 25 xiangling hitlag extension

Xiangling ult without hitlag: https://youtu.be/e_hR5BT6Ock

00:15 Q pressed 00:34 CD started 01:02 Pyronado entity spawned 14:45 Pyronado entity disappears 5.8s CD 14:46 Explosion animation starts

durations: - from Q press: 14:30f - from CD start: 14:16f - from entity spawn: 13:44f

(edited)

Eric Banker

2021 04 27 xiangling hitlag extension 2

KourinnApr 27, 2021 11:20 PM

Conclusions: - pyronado entity duration is not affected by hitlag - pyronado entity spawn is delayed by hitlag, which positively reduces the remaining cooldown (but only by a negligible amount)

Todo: final write-up

Ayzel | high ping revolutionApr 28, 2021 12:32 AM

<@!156549756074590220> ping me when you're done with the final write-up so that I can verify this

buff rat | diona (denmax)May 1, 2021 6:53 AM

Any updates on the write-up?

KourinnMay 2, 2021 11:01 PM

Finding: As previously documented, skill and normal attack hitlag will extend the duration of active character and hit enemy buffs/debuffs and elemental auras. However, this does not apply to active deployables (Xiangling's Guoba and Pyronado, Bennet's Passion Overload floor circle, Chongyun's Layered Frost floor circle, etc). After spawning, these entities will continue to act without pausing on normal attack hitlag. Hitlag during the spawning animation can delay the spawn, providing some cooldown downtime benefits, but the duration of the entity after spawning is unaffected, and the cooldown gains are mostly negligible. In the case of Bennet (A4 & C6) and Chongyun, hitlag will only extend the duration of the most recently refreshed 2s buff/infusion (2-3s for Chongyun with talent levels), resulting in negligible benefit from hitlag. The floor circle supplying the buff/infusion will disappear after the set duration regardless of hitlag. In the case of Xiangling, her elemental burst performs a 3 hit melee hits while spawning the Pyronado entity. However, the skill's cooldown starts after the 1st hit, so its hitlag has no additional benefit. The Pyronado entity spawns after the 2nd hit, so this hitlag delays the spawn, effectively reducing the cooldown by 6 or 7 frames (0.100s - 0.117s). But now, the Pyronado entity has already spawned, so the 3rd hit's hitlag also has no benefit for the Pyronado. Thus, hitlag has negligible benefit, if any, for deployables and short-term buffs supplied by deployables. Significance: Hitlag extension should be ignored when theorycrafting deployables' and Bennet's/Chongyun's buff/infusion uptime.

@Ayzel | high ping revolution @buff rat | diona (denmax) hitlag ticket write-up is done.

Yuehai Ticketing SecretaryBOTMay 2, 2021 11:02 PM

Ticket Closed by <@156549756074590220>