DI Training

DI Calculator

Move your controller stick to simulate Directional Influence. See your trajectory change in real time, 1:1 with Melee physics.

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Attacker

Move

Victim

Victim % 80

Stage

Direction

Defense

Crouch cancel ASDI V-cancel

SDI inputs 0

Click or drag to reposition

No DI With DI Actionable Knockdown → Tech Lands Drift after actionable

DI Input ← move stick or drag

Knockback —

Hitstun —

Hitlag (SDI window) —

Launch angle —

DI rotation —

Result angle —

DI efficiency —

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How DI works: The stick position is read on the last frame of hitlag. If magnitude > 0.2875, your launch angle deviates by up to +/-18 degrees, maximized when the stick is perpendicular to the knockback angle. Tilting less than full produces weaker deviation. Directions parallel to the knockback angle produce no survival DI. Knockback angles within 17 degrees of vertical or horizontal can be DI'd to a lesser degree since no true perpendicular is available within the gate. Green arrow = optimal direction. Angle 0 = right, 90 = up.

Physics engine and frame data ported from ikneedata.com's knockback calculator — huge thanks to IKneeData for the research and reference implementation.