Class FilmGrain

A volume component that holds settings for the Film Grain effect.

Inheritance
object
Object
ScriptableObject
VolumeComponent
FilmGrain
Implements
Inherited Members
ScriptableObject.CreateInstance<T>()
Object.GetEntityId()
Object.InstantiateAsync<T>(T)
Object.InstantiateAsync<T>(T, Transform)
Object.InstantiateAsync<T>(T, Vector3, Quaternion)
Object.InstantiateAsync<T>(T, Transform, Vector3, Quaternion)
Object.Instantiate<T>(T, InstantiateParameters)
Object.Instantiate<T>(T, Vector3, Quaternion, InstantiateParameters)
Object.Instantiate<T>(T)
Object.Instantiate<T>(T, Vector3, Quaternion)
Object.Instantiate<T>(T, Vector3, Quaternion, Transform)
Object.Instantiate<T>(T, Transform)
Object.FindObjectsByType<T>(FindObjectsSortMode)
Object.FindObjectsByType<T>(FindObjectsInactive, FindObjectsSortMode)
Object.FindFirstObjectByType<T>()
Object.FindAnyObjectByType<T>()
Object.FindFirstObjectByType<T>(FindObjectsInactive)
Object.FindAnyObjectByType<T>(FindObjectsInactive)
Namespace: UnityEngine.Rendering.Universal
Assembly: Unity.RenderPipelines.Universal.Runtime.dll
Syntax
[Serializable]
[VolumeComponentMenu("Post-processing/Film Grain")]
[SupportedOnRenderPipeline(typeof(UniversalRenderPipelineAsset))]
public sealed class FilmGrain : VolumeComponent, IApplyRevertPropertyContextMenuItemProvider, IPostProcessComponent
Remarks

You can add VolumeComponent to a VolumeProfile in the Editor to apply a Film Grain post-processing effect.

Examples

This sample code shows how settings can be retrieved and modified in runtime:

using System;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;

public class ModifyVolumeComponent : MonoBehaviour
{
[SerializeField] VolumeProfile volumeProfile;
[SerializeField] VolumeSettings volumeSettings;


private bool m_HasRetrievedVolumeComponent;
private FilmGrain m_VolumeComponent;

[Serializable]
private struct VolumeSettings
{
    public bool active;
    public FilmGrainLookupParameter type;
    public ClampedFloatParameter intensity;
    public ClampedFloatParameter response;
    public NoInterpTextureParameter texture;

    public void SetVolumeComponentSettings(ref FilmGrain volumeComponent)
    {
        volumeComponent.active = active;
        volumeComponent.type = type;
        volumeComponent.intensity = intensity;
        volumeComponent.response = response;
        volumeComponent.texture = texture;
    }

    public void GetVolumeComponentSettings(ref FilmGrain volumeComponent)
    {
        active = volumeComponent.active;
        type = volumeComponent.type;
        intensity = volumeComponent.intensity;
        response = volumeComponent.response;
        texture = volumeComponent.texture;
    }
}

private void Start()
{
    m_HasRetrievedVolumeComponent = GetVolumeComponent(in volumeProfile, ref m_VolumeComponent);
    if (m_HasRetrievedVolumeComponent)
        volumeSettings.GetVolumeComponentSettings(ref m_VolumeComponent);
}

private void Update()
{
    if (!m_HasRetrievedVolumeComponent)
        return;

    volumeSettings.SetVolumeComponentSettings(ref m_VolumeComponent);
}

private static bool GetVolumeComponent(in VolumeProfile volumeProfile, ref FilmGrain volumeComponent)
{
    if (volumeComponent != null)
        return true;

    if (volumeProfile == null)
    {
        Debug.LogError("ModifyVolumeComponent.GetVolumeComponent():\nvolumeProfile has not been assigned.");
        return false;
    }

    volumeProfile.TryGet(out FilmGrain component);
    if (component == null)
    {
        Debug.LogError($"ModifyVolumeComponent.GetVolumeComponent():\nMissing component in the \"{volumeProfile.name}\" VolumeProfile ");
        return false;
    }

    volumeComponent = component;
    return true;
}



}

Fields

intensity

Use this to set the strength of the Film Grain effect.

Declaration
[Tooltip("Use the slider to set the strength of the Film Grain effect.")]
public ClampedFloatParameter intensity
Field Value
Type Description
ClampedFloatParameter
See Also

response

Controls the noisiness response curve based on scene luminance. Higher values mean less noise in light areas.

Declaration
[Tooltip("Controls the noisiness response curve based on scene luminance. Higher values mean less noise in light areas.")]
public ClampedFloatParameter response
Field Value
Type Description
ClampedFloatParameter
See Also

texture

A tileable texture to use for the grain. The neutral value is 0.5 where no grain is applied

Declaration
[Tooltip("A tileable texture to use for the grain. The neutral value is 0.5 where no grain is applied.")]
public NoInterpTextureParameter texture
Field Value
Type Description
NoInterpTextureParameter
See Also

type

The type of grain to use. You can select a preset or provide your own texture by selecting Custom.

Declaration
[Tooltip("The type of grain to use. You can select a preset or provide your own texture by selecting Custom.")]
public FilmGrainLookupParameter type
Field Value
Type Description
FilmGrainLookupParameter
See Also

Methods

IsActive()

Tells if the post process needs to be rendered or not.

Declaration
public bool IsActive()
Returns
Type Description
bool

true if the effect should be rendered, false otherwise.
See Also

Implements

See Also