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Unity Engine

SmoothStep(float, float, float)

Interpolates between from and to with smoothing at the limits.
Read time 1 minuteLast updated 4 days ago

Definition

  • Type: Method
  • Namespace: UnityEngine
  • Assembly: UnityEngine.CoreModule
public static float SmoothStep(float from, float to, float t)

Parameters

from

float
The start of the range.

to

float
The end of the range.

t

float
The interpolation value between the 
from
and 
to
range limits.

Returns

Type

Description

floatThe interpolated float result between 
from
and 
to
.

Remarks

This function interpolates between 
from
and 
to
in a similar way to Mathf.Lerp. However, the interpolation will gradually speed up from the start and slow down toward the end. This is useful for creating natural-looking animation, fading and other transitions.
The parameter 
t
is clamped to the range [0, 1].

Examples

using UnityEngine;public class Example : MonoBehaviour{    // Minimum and maximum values for the transition.    float minimum = 10.0f;    float maximum = 20.0f;    // Time taken for the transition.    float duration = 5.0f;    float startTime;    void Start()    {        // Make a note of the time the script started.        startTime = Time.time;    }    void Update()    {        // Calculate the fraction of the total duration that has passed.        float t = (Time.time - startTime) / duration;        transform.position = new Vector3(Mathf.SmoothStep(minimum, maximum, t), 0, 0);    }}