Class Spline

A wrapper on top of to handle zero-key curves and keyframe loops.

Inheritance

System.Object

Spline

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: UnityEngine.Rendering.PostProcessing

Syntax

[Serializable]
public sealed class Spline

Constructors

Spline(AnimationCurve, Single, Boolean, Vector2)

Creates a new spline.

Declaration

public Spline(AnimationCurve curve, float zeroValue, bool loop, Vector2 bounds)

Parameters

Type	Name	Description
AnimationCurve	curve	The animation curve to base this spline off
System.Single	zeroValue	The value to return when the curve has no keyframe
System.Boolean	loop	Should this curve loop?
Vector2	bounds	The curve bounds

Fields

cachedData

An array holding pre-computed curve values.

Declaration

public float[] cachedData

Field Value

Type	Description
System.Single[]

curve

The underlying animation curve instance.

Declaration

public AnimationCurve curve

Field Value

Type	Description
AnimationCurve

k_Precision

Precision of the curve.

Declaration

public const int k_Precision = 128

Field Value

Type	Description
System.Int32

k_Step

The inverse of the precision of the curve.

Declaration

public const float k_Step = 0.0078125F

Field Value

Type	Description
System.Single

Methods

Cache(Int32)

Caches the curve data at a given frame. The curve data will only be cached once per frame.

Declaration

public void Cache(int frame)

Parameters

Type	Name	Description
System.Int32	frame	A frame number

Evaluate(Single)

Evaluates the curve at a point in time.

Declaration

public float Evaluate(float t)

Parameters

Type	Name	Description
System.Single	t	The time to evaluate

Returns

Type	Description
System.Single	The value of the curve at time t

Remarks

Calling the length getter on a curve is expensive to it's better to cache its length and call Evaluate(Single, Int32) instead of getting the length for every call.

Evaluate(Single, Int32)

Evaluates the curve at a point in time.

Declaration

public float Evaluate(float t, int length)

Parameters

Type	Name	Description
System.Single	t	The time to evaluate
System.Int32	length	The number of keyframes in the curve

Returns

Type	Description
System.Single	The value of the curve at time t

GetHashCode()

Returns the computed hash code for this parameter.

Declaration

public override int GetHashCode()

Returns

Type	Description
System.Int32	A computed hash code

Overrides

System.Object.GetHashCode()