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Hitlag Extension

Hitlag Extends Elemental Aura Duration

By: BowlSoldier#3528

Finding: Elemental Aura durations are affected by hitlag, much like any other enemy debuff.

Evidence: YouTube In the first example in the video, there is no hitlag. The Electro aura lasts for 566 frames, or 9.43 seconds. In the second example, Razor causes as much hitlag as possible. The Electro aura lasts for 11.41 seconds, longer than expected.

Significance: We can extend aura durations with hitlag to give ourselves more time to cause reactions. Unfortunately this means a lot of our frame counts of elemental durations will be off by a few frames, because of the hitlag on the moves that apply the element.

Normal Attack Hitlag can Extend Skill/Burst Duration

By: Kourinn#6001 Added: 2021-05-09 Discussion

Finding: Normal Attack hitlag can extend the duration of some skills/bursts, such as Xiao's burst.

Evidence: YouTube

Timestamps: (subtract 1:22:00; timestamps are from pre-editing) Google Doc

The duration of Xiao's burst appears to be calculated from the frame the CD starts, which matches with when Xiao's tattoos light 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.

Significance: Hitlag extension should be taken into account when simulating skills/bursts such as Xiao's burst, as they cause the skill to last longer.

Hitlag Extension Caveats

By: Kourinn#6001 Added: 2021-05-09 Discussion

Findings:

  • 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 (i.e. Xiangling's melee hits on her burst) and single-player world pauses (menu, character death, etc).

  • The buffs caused by deployables, such as Chongyun's Cryo infusion, do have their durations extended by normal attack hitlag.

Evidence: Bennett Field Buff

  • 00:01:11 - Q press

  • 00:01:46 - CD start

  • NA spam (should add ~1s via hitlag)

  • 00:13:41 - last heal

  • 00:14:01 - AOE fully faded

Q circle lasted 12s

Chongyun Field Buff

  • 00:08:53 - E press

  • 00:09:28 - E CD Start

  • NA Spam (should add ~1.5s hitlag)

  • 00:19:32 - CD on skill hits 4.9 seconds

  • 00:19:39 - AOE fully faded

  • 00:21:43 - CD on Chongyun's Skill hits 2.7s (when the infusion effect should end)

  • 00:21:59 - Infused Weapon effect ends

E circle lasted ~10s; cryo infusion lasted 0.16 seconds longer than expected

Xiangling Hitlag Extension

With Hitlag on Startup

Timestamps:

  • 00:26:28 - Q press

  • 00:26:47 - Q CD Start, Q hitlag start

  • 00:26:54 - Q hitlag end (7 frames)

  • 00:27:06 - Q hitlag start

  • 00:27:13 - Q hitlag end (7 frames)

  • 00:27:27 - Pyronado Entity spawns

  • 00:27:35 - Q hitlag start

  • 00:27:42 - Q hitlag end (7 frames)

  • some NA spam (should extend Pyronado by ~2s due to hitlag if hitlag were to actually extend pyronado)

  • 00:41:10 - Pyronado Entity disappears, 5.6s CD left

  • 00:41:15 - 5.5s cd

Durations:

  • from Q press: 14:42

  • from CD start: 14:23

  • from entity spawn: 13:43

Without Hitlag on Startup

Timestamps:

  • 00:15 - Q pressed

  • 00:34 - CD started

  • 01:02 - Pyronado entity spawned

  • 14:45 - Pyronado entity disappears at 5.8s CD left

  • 14:46 - Explosion animation starts

Durations:

  • from Q press: 14:30

  • from CD start: 14:16

  • from entity spawn: 13:44

As shown, in the case of Xiangling, while her hitlag (on the second melee hit; the skill's cooldown starts after the first hit, so its hitlag has no benefit) delays the spawn, effectively reducing the cooldown by 6 or 7 frames (0.100s - 0.117s), this effect is negligible. The third melee hit does not matter, since the Pyronado entity has spawned by the third hit, and hitlag does not extend its duration.

Significance: Hitlag extension should be ignored when theorycrafting deployables' and Bennett's/Chongyun's buff/infusion uptime.

I-frames

Preliminary Analysis of How Invincibility Frames Work

By: MemeMastodon69/#2165 Added: 2020-10-29

Finding: Raw footage at end of post. All footage taken at 60fps. Halve figures for 30fps. Assumptions - Hit is registered on the frame before knockback animation starts playing. From this we can infer the large slime's jump attack's active hitbox begins on the frame its landing "spark" appears. Methodology - Startup frames determined by dashing as close to slime landing as possible. Total frames determined by dashing into the center of the slime landing as close to 25 frames as possible, after establishing likely total frames by dashing repeatedly under Stormterror beam and counting frames until particle effect triggers.

Evidence: Startup - Failed dodge at 2 frames from input, succeeded at 4 frames from input. Conclusion - 3 frames startup time. Total - Lowest counted frames from dashing under Stormterror beam 26 frames. Failed slime dodge at 26 frames, succeeded at 24 frames. Conclusion - PROBABLY 20 active frames give or take 1. Latency - Hit detection is calculated client-side, as startup time is significantly lower than my latency to the server. Time taken - A few hours of testing, 20 years of training to make frame-perfect inputs on a consistent basis. Startup time footage Stormterror 4Head footage (don't look at this) Total active time footage

Conclusions: TL;DR - 3 startup frames, 20 active frames give or take 1 frame from each.

Frame Counts

Aim Mode Frame Counts

By: BowTae#0141 and xSil3nt#0961 Added: 2022-04-15 Discussion

Finding: Standardized aim mode frame counts for bow characters.

Evidence: Google Sheet

  • Frames were recorded at 60fps, using a macro to find the minimum consistent frame counts.

Significance: More accurate counts for the TCL.

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