Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Runtime > Engine > GameFramework > UCharacterMovementComponent > UCharacterMovementComponent::CalcVelocity

Light Theme

Dark Theme

UCharacterMovementComponent::CalcVelocity

Updates Velocity and Acceleration based on the current state, applying the effects of friction and acceleration or deceleration.

Windows

MacOS

Linux

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/GameFramework/CharacterMovementComponent.h
Include	#include "GameFramework/CharacterMovementComponent.h"
Source	/Engine/Source/Runtime/Engine/Private/Components/CharacterMovementComponent.cpp

Syntax

virtual void CalcVelocity
(
    float DeltaTime,
    float Friction,
    bool bFluid,
    float BrakingDeceleration
)

Remarks

Updates Velocity and Acceleration based on the current state, applying the effects of friction and acceleration or deceleration. Does not apply gravity. This is used internally during movement updates. Normally you don't need to call this from outside code, but you might want to use it for custom movement modes.

Parameters

Parameter	Description
DeltaTime	time elapsed since last frame.
Friction	coefficient of friction when not accelerating, or in the direction opposite acceleration.
bFluid	true if moving through a fluid, causing Friction to always be applied regardless of acceleration.
BrakingDeceleration	deceleration applied when not accelerating, or when exceeding max velocity.

Help shape the future of Unreal Engine documentation! Tell us how we're doing so we can serve you better.

Take our survey

Dismiss