View source for Tech recovery

A '''tech recovery''' ('''tech''') is a group of various ways to recover faster after being hit. Most techs cause the player to recover standing instead of grounded. With notable exception of the [[tech roll]], most techs are done by holding B.

Which tech can be done depends on the move being recovered from. For most moves, there's only one tech that can be done.

If a move can be teched, it's indicated in {{SITENAME}} [[movelist]]s and the in-game frame data by a [[frame advantage]] in brackets. For example, +10 (+1) means the move is +10 normally and that a tech can be done 1 frame after the attacker recovers. It ''does not'' mean the move is +1 if the defender techs, because it doesn't count how long the tech itself takes.

== Tech roll ==

A '''tech roll''' ('''side quick roll''' in game) is the most common tech recovery as it can be done from almost any knockdown to safely recover standing. It's done by pressing an attack button as you land. A punch button rolls into the background, and a kick button into the foreground.

Tech rolls take 41 [[frame]]s. They're intangible for 29 frames and able to guard for the remaining 12. Since there's no frames where they're vulnerable and unable to guard, they're a reliable default option on [[wake-up]]. However, tech rolls take a while to recover and often give up a free [[mixup]], so other wake-up options are still useful for disrupting an opponent's [[okizeme]].

Tech rolls recover in [[full crouch]]. All [[crouch]]ing moves, including [[while standing]] moves, can be fully [[input buffer|buffered]] during recovery.

{{Legend|float=right|
|teal=Intangible
|green=Guarding
|orange=Full crouch (Recovered)
|purple=Buffer period
}}
{{FrameTableSet|
{{FrameTable|caption=Tech roll (earliest input)|
{{Frame|1|1|purple}}
{{Frame|2||purple}}
{{Frame|3||purple}}
{{Frame|4||purple}}
{{Frame|5||purple}}
{{Frame|6||purple}}
{{Frame|7||purple}}
{{Frame|8||purple}}
{{Frame|9||purple}}
{{Frame|1||teal}}
{{Frame|||teal}}
{{Frame|29||teal}}
{{Frame|30||green}}
{{Frame|||green}}
{{Frame|41||green}}
{{Frame|42||orange}}
}}
{{FrameTable|caption=Tech roll (latest input)|
{{Frame|1||purple}}
{{Frame|2||purple}}
{{Frame|3||purple}}
{{Frame|4||purple}}
{{Frame|5||purple}}
{{Frame|6||purple}}
{{Frame|7||purple}}
{{Frame|8||purple}}
{{Frame|9||purple}}
{{Frame|1|1|teal}}
{{Frame|||teal}}
{{Frame|29||teal}}
{{Frame|30||green}}
{{Frame|||green}}
{{Frame|41||green}}
{{Frame|42||orange}}
}}
}}

The input window for a tech roll is 10 frames. Regardless of when the input is done, the intangibility starts at the same time and the [[frame advantage]] on recovery remains the same, i.e. tech rolls usually can't be delayed. However, this input window is ''not'' the same as the regular [[input buffer]]. The window is 1 frame longer, and in rare circumstances it matters when the input is made. In particular, it seems that before the intangibility starts a locked in tech roll has some influence on the hitstun.

Tech rolls ''can'' be delayed for up to 20 frames after a regular wall splat. This doesn't work after most wall combos, since the splat has finished, but can be useful for disrupting [[tech traps]], which often depend on a particular tech timing.
<!--
# P2 Claudio - ?=12~21 gets tech
db+3-b+4,2,f*=55,f+2=? 3
# P2 Claudio - ?=60~69 gets tech
db+3-uf+4=? 3
# P1 Lee at wall - ?=2~11 gets tech
# => 10 frame window for tech
f=10,f~f+3+4=80,f+4,3=45 ub+3=45 df+4=? -3

# P1 Lee at wall - df+4 and 4 trades, so Lee is +2
f=10,f~f+3+4=80,f+4,3=45 ub+3=45 df+4=2 -3=41 df+4-4
# P1 Lee at wall - df+4 and 4 trades, so delaying input doesn't change frames at all?
f=10,f~f+3+4=80,f+4,3=45 ub+3=45 df+4=11 -3=32 df+4-4
# P1 Lee at wall - ?=102~131 gets tech
# => 30 frame window
f=10,f~f+3+4=? -3
# P1 Lee at wall - ?=95 is combo, ?=96 not
f=10,f~f+3+4=? d+3
# For x=96~115: y=15 whiffs, y=16 hits (but not true combo)
# => 20 frames of the 30 frame window are delay frames
f=10,f~f+3+4=96 d+3=y -3

# P1 Lee at wall, P2 Kazumi - ?=40 Lee wins, ?=41 trades
# => Tech left/right both take 41 frames
f=10,f~f+3+4=102 -3=? 4-4
f=10,f~f+3+4=102 -1=? 4-4
# P1 Lee at wall - ?=7 1+2 whiffs, ?=8 blocked on 2nd active frame (i22), ?=9 blocked on i21
# => Tech intangible for 29 frames
# => Tech has 12 frames of guarding
f=10,f~f+3+4=102 -1=? 1+2
-->
=== Right is faster? ===

There's a myth that tech roll right is faster than tech roll left by 1 frame.<ref>@4LCH3M15T, 20 Sep 2021. [https://twitter.com/4LCH3M15T/status/1439796018657169408 “Tech roll right is 1f faster than tech roll left. There's a lot of situations where this happens e.g after Steve punch parry you can only avoid the d1+2 if you tech roll right, but not left (not every character can avoid it though)”]. Twitter.</ref> This myth arises from a few combos that can be avoided by a tech right but not a tech left.

<gallery>
File:Claudio-ragedrive-f3-tech.mp4|[[Claudio]] R.b+4,2,F f+3 combos vs tech left but not tech right.
File:Eddy-ch-db4-34-tech.mp4|[[Eddy]] CH d/b+4 3+4 combos vs tech left but not tech right.
File:Steve-parry-d12-tech.mp4|[[Steve]] b+1+2,P.1 d+1+2 combos vs tech left but not tech right against [[Kazumi]].
</gallery><!-- 1=5 -b+1+2=6,1=42,d+1+2=18 1_3 # for Steve video -->

But many real combos rely on a move exactly as fast as the [[frame advantage]] and for which the opponent's tech direction has no impact. If it were really the case that tech right is faster, there would be countless situations where this would pop up.

<gallery>
File:Kazumi-hopkick-f3-df1.mp4|[[Kazumi]] u/f+4 f+3 is (+13) and d/f+1 (i13) combos vs both techs.
File:Kazumi-hopkick-hopkick-df1.mp4|[[Kazumi]] u/f+4 u/f+4 is (+12) and d/f+1 (i13) refloats without a tech but whiffs vs both techs.
</gallery>

For tech right to be a frame faster, the frame data needs to be off by one for at least one tech direction. Either tech left is a frame slower and i13 should combo at (+12) vs tech left; or tech right is a frame faster and i13 should whiff at (+13) vs tech right. Neither of these is the case.

=== Influences landing animation ===

The main clue as to what's really going on is that all of the aforementioned combos ''do'' work against tech right in situations where the only things changed are hurtboxes.

<gallery>
File:Claudio-ragedrive-f3-tech-marduk.mp4|[[Claudio]] R.b+4,2,F f+3 combos vs tech right against [[Marduk]].
File:Claudio-ragedrive-d2-tech.mp4|[[Claudio]] R.b+4,2,F d+2 combos vs tech right, even though d+2 is slower than f+3.
File:Eddy-ch-db4-34-tech-kuma.mp4|[[Eddy]] CH d/b+4 3+4 combos vs tech right against [[Kuma]].
File:Steve-parry-d12-tech-wall.mp4|[[Steve]] b+1+2,P.1 d+1+2 combos vs tech right at the wall.
</gallery>

[[File:Claudio-ragedrive-f3-techright.jpg|thumb|250px|After R.b+4,2,F, the f+3 hitbox just barely doesn't connect vs tech right, suggesting that the tech moved it—even though it hasn't started yet!]]

So what's going on is even stranger: tech rolls influence the landing animation before they actually start, moving the hurtbox slightly—differently for right tech from left—and in very rare circumstances this causes a whiff.

In the case of [[Claudio]] R.b+4,2,F f+3, there's two more notable things going on:

* R.b+4,2,F is (+21) and if they don't tech right then f+3 connects on frame 19.
* There's only a 5 frame input window for this tech right to avoid f+3, instead of the normal 10.

{{Legend
|float=right
|blue=R.b+4,2,F hitstun
|yellow=f+3 2nd active frame
|red=f+3 hitstun
|purple=Tech roll input window
|teal=Tech roll
|orange=FUFT
}}

{{FrameTableSet|
{{FrameTable|caption=R.b+4,2,F hitstun, starting from Claudio recovering|
{{Frame|1}}
{{Frame|⋯}}
{{Frame|12}}
{{Frame|13||purple}}
{{Frame|14||purple}}
{{Frame|15||purple}}
{{Frame|16||purple}}
{{Frame|17||purple}}
{{Frame|18||purple}}
{{Frame|19||purple}}
{{Frame|20||purple}}
{{Frame|21||purple}}
{{Frame|22||purple}}
{{Frame|23}}
{{Frame|⋯}}
{{Frame|47}}
{{Frame|48||orange}}
}}
{{FrameTable|caption=Earliest possible input to avoid f+3 with tech right|
{{Frame|1}}
{{Frame|⋯}}
{{Frame|12}}
{{Frame|13|3|purple}}
{{Frame|14||purple}}
{{Frame|15||purple}}
{{Frame|16||purple}}
{{Frame|17||purple}}
{{Frame|18||purple}}
{{Frame|19||yellow}}
{{Frame|20||purple}}
{{Frame|21||purple}}
{{Frame|22||teal}}
}}
{{FrameTable|caption=Latest possible input to avoid f+3 with tech right|
{{Frame|1}}
{{Frame|⋯}}
{{Frame|12}}
{{Frame|13||purple}}
{{Frame|14||purple}}
{{Frame|15||purple}}
{{Frame|16||purple}}
{{Frame|17|3|purple}}
{{Frame|18||purple}}
{{Frame|19||yellow}}
{{Frame|20||purple}}
{{Frame|21||purple}}
{{Frame|22||teal}}
}}
{{FrameTable|caption=Too late, doesn't influence fall early enough|
{{Frame|1}}
{{Frame|⋯}}
{{Frame|12}}
{{Frame|13||purple}}
{{Frame|14||purple}}
{{Frame|15||purple}}
{{Frame|16||purple}}
{{Frame|17||purple}}
{{Frame|18|3|purple}}
{{Frame|19||yellow}}
{{Frame|20||red}}
{{Frame|21||red}}
{{Frame|22||red}}
}}
}}

This suggests that in some way the input for a tech roll has an effect immediately, even if the intangibility always starts at the same time. If it were the case that the tech's intangibility was preventing the f+3 from connecting, we'd expect the input window to be up until the f+3 connects, but the tech actually needs to be input 2 frames earlier. Similarly, it'd make sense for the input window to be the same as normal, but it's actually much smaller.

== Notes ==

<references/>

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