Class HableCurve

A raw implementation of John Hable's artist-friendly tonemapping curve. See http://filmicworlds.com/blog/filmic-tonemapping-with-piecewise-power-curves/

Inheritance

System.Object

HableCurve

Namespace: UnityEngine.Rendering.PostProcessing

Syntax

public class HableCurve

Constructors

HableCurve()

Creates a new curve.

Declaration

public HableCurve()

Fields

uniforms

The builtin HableCurve.Uniforms instance for this curve.

Declaration

public readonly HableCurve.Uniforms uniforms

Field Value

Type	Description
HableCurve.Uniforms

Properties

inverseWhitePoint

The inverse of the curve's white point.

Declaration

public float inverseWhitePoint { get; }

Property Value

Type	Description
System.Single

whitePoint

The curve's white point.

Declaration

public float whitePoint { get; }

Property Value

Type	Description
System.Single

Methods

Eval(Single)

Evaluates a given point on the curve.

Declaration

public float Eval(float x)

Parameters

Type	Name	Description
System.Single	x	The point within the curve to evaluate (on the horizontal axis)

Returns

Type	Description
System.Single	The value of the curve, at the point specified

Init(Single, Single, Single, Single, Single, Single)

Initializes the curve with given settings.

Declaration

public void Init(float toeStrength, float toeLength, float shoulderStrength, float shoulderLength, float shoulderAngle, float gamma)

Parameters

Type	Name	Description
System.Single	toeStrength	Affects the transition between the toe and the mid section of the curve. A value of 0 means no toe, a value of 1 means a very hard transition
System.Single	toeLength	Affects how much of the dynamic range is in the toe. With a small value, the toe will be very short and quickly transition into the linear section, and with a longer value having a longer toe
System.Single	shoulderStrength	Affects the transition between the mid section and the shoulder of the curve. A value of 0 means no shoulder, a value of 1 means a very hard transition
System.Single	shoulderLength	Affects how many F-stops (EV) to add to the dynamic range of the curve
System.Single	shoulderAngle	Affects how much overshoot to add to the shoulder
System.Single	gamma	Applies a gamma function to the curve