Class VolumeComponent

The base class for all the components that can be part of a VolumeProfile. The Volume framework automatically handles and interpolates any VolumeParameter members found in this class.

Inheritance

Object

VolumeComponent

Namespace: UnityEngine.Rendering

Syntax

[Serializable]
public class VolumeComponent : ScriptableObject

Examples

using UnityEngine.Rendering;

[Serializable, VolumeComponentMenu("Custom/Example Component")]
public class ExampleComponent : VolumeComponent
{
    public ClampedFloatParameter intensity = new ClampedFloatParameter(0f, 0f, 1f);
}

Fields

active

The active state of the set of parameters defined in this class. You can use this to quickly turn on or off all the overrides at once.

Declaration

public bool active

Field Value

Type	Description
Boolean

Properties

displayName

The name displayed in the component header. If you do not set a name, Unity generates one from the class name automatically.

Declaration

public string displayName { get; protected set; }

Property Value

Type	Description
String

parameters

A read-only collection of all the VolumeParameters defined in this class.

Declaration

public ReadOnlyCollection<VolumeParameter> parameters { get; }

Property Value

Type	Description
ReadOnlyCollection<VolumeParameter>

Methods

GetHashCode()

A custom hashing function that Unity uses to compare the state of parameters.

Declaration

public override int GetHashCode()

Returns

Type	Description
Int32	A computed hash code for the current instance.

OnDestroy()

Unity calls this method before the object is destroyed.

Declaration

protected virtual void OnDestroy()

OnDisable()

Unity calls this method when the object goes out of scope.

Declaration

protected virtual void OnDisable()

OnEnable()

Unity calls this method when it loads the class.

Declaration

protected virtual void OnEnable()

Remarks

If you want to override this method, you must call base.OnEnable().

Override(VolumeComponent, Single)

Interpolates a VolumeComponent with this component by an interpolation factor and puts the result back into the given VolumeComponent.

Declaration

public virtual void Override(VolumeComponent state, float interpFactor)

Parameters

Type	Name	Description
VolumeComponent	state	The internal component to interpolate from. You must store the result of the interpolation in this same component.
Single	interpFactor	The interpolation factor in range [0,1].

Remarks

You can override this method to do your own blending. Either loop through the parameters list or reference direct fields. You should only use SetValue(VolumeParameter) to set parameter values and not assign directly to the state object. you should also manually check overrideState before you set any values.

Examples

Below is the default implementation for blending:

public virtual void Override(VolumeComponent state, float interpFactor)
{
    int count = parameters.Count;

    for (int i = 0; i < count; i++)
    {
        var stateParam = state.parameters[i];
        var toParam = parameters[i];

        // Keep track of the override state for debugging purpose
        stateParam.overrideState = toParam.overrideState;

        if (toParam.overrideState)
            stateParam.Interp(stateParam, toParam, interpFactor);
    }
}

Release()

Releases all the allocated resources.

Declaration

public void Release()

SetAllOverridesTo(Boolean)

Sets the state of all the overrides on this component to a given value.

Declaration

public void SetAllOverridesTo(bool state)

Parameters

Type	Name	Description
Boolean	state	The value to set the state of the overrides to.