# Change Default Post-Processing Stack Effects Order
**URL:** https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074
**Category:** Post-Processing
**Tags:** Shaders, Post-Processing
**Created:** [June 21, 2019, 11:15pm UTC](https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074 "2019-06-21T23:15:54Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Retruate](https://discussions.unity.com/u/Retruate)
#### Post date: [June 21, 2019, 11:15pm UTC](https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074/1 "2019-06-21T23:15:54Z")
Hello,
I have been writing some custom effects for the post-processing stack for my game. The [custom effects guide](https://github.com/Unity-Technologies/PostProcessing/wiki/Writing-Custom-Effects) says that you can order your effects per post-processing layer, which I have done, and that built-in effects are ordered automatically. However, I want to be able to change the order of all the post-processing effects, so that one of my custom effects can be run before or in-between the built-in Unity effects. Surely this has to be pretty easy, but I can’t find where Unity has opened it up to let you change the default order. I think I could accomplish what I want with CommandBuffers, but I’m not as familiar with the post-processing stack as I am with other parts of Unity so I don’t want to mess with it and risk it breaking down the line.
I suppose a workaround could be to copy Unity’s effect(s) or write my own and use it as a custom effect instead of the default one, but that sounds horrendously unconventional.
Apologies if this is something simple that I have just overlooked. Took me a while to find custom effect sorting even though it was just under my nose on the PP layer.
Thanks!,
John
---
### Author:  [@tomekkie2](https://discussions.unity.com/u/tomekkie2)
#### Post date: [February 13, 2021, 10:32am UTC](https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074/2 "2021-02-13T10:32:30Z")
Did you find a solution?
I have also written a selective custom effect and I am wondering how to manipulate with its order.
The custom effect template does not seem to provide an option to set an order variable, even with a limited options (BeforeStack, BeforeTransparent and AfterStack).
```csharp
using System;
using UnityEngine;
using UnityEngine.Rendering.PostProcessing;
[Serializable]
[PostProcess(typeof(GrayscaleRenderer), PostProcessEvent.AfterStack, "Custom/Grayscale")]
public sealed class Grayscale : PostProcessEffectSettings
{
[Range(0f, 1f), Tooltip("Grayscale effect intensity.")]
public FloatParameter blend = new FloatParameter { value = 0.5f };
}
public sealed class GrayscaleRenderer : PostProcessEffectRenderer
{
public override void Render(PostProcessRenderContext context)
{
var sheet = context.propertySheets.Get(Shader.Find("Hidden/Custom/Grayscale"));
sheet.properties.SetFloat("_Blend", settings.blend);
context.command.BlitFullscreenTriangle(context.source, context.destination, sheet, 0);
}
}
```
This is the template from [Writing custom effects | Post Processing | 3.0.3](https://docs.unity3d.com/Packages/com.unity.postprocessing@3.0/manual/Writing-Custom-Effects.html)
---
### Author:  [@elisetong95](https://discussions.unity.com/u/elisetong95)
#### Post date: [May 21, 2022, 3:18am UTC](https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074/3 "2022-05-21T03:18:03Z")
> [@tomekkie2](#):
>
> Did you find a solution?
> I have also written a selective custom effect and I am wondering how to manipulate with its order.
> The custom effect template does not seem to provide an option to set an order variable, even with a limited options (BeforeStack, BeforeTransparent and AfterStack).
>
> ```csharp
> using System;
> using UnityEngine;
> using UnityEngine.Rendering.PostProcessing;
>
> [Serializable]
> [PostProcess(typeof(GrayscaleRenderer), PostProcessEvent.AfterStack, "Custom/Grayscale")]
> public sealed class Grayscale : PostProcessEffectSettings
> {
> [Range(0f, 1f), Tooltip("Grayscale effect intensity.")]
> public FloatParameter blend = new FloatParameter { value = 0.5f };
> }
> public sealed class GrayscaleRenderer : PostProcessEffectRenderer
> {
> public override void Render(PostProcessRenderContext context)
> {
> var sheet = context.propertySheets.Get(Shader.Find("Hidden/Custom/Grayscale"));
> sheet.properties.SetFloat("_Blend", settings.blend);
> context.command.BlitFullscreenTriangle(context.source, context.destination, sheet, 0);
> }
> }
>
> ```
>
> This is the template from [https://docs.unity3d.com/Packages/com.unity.postprocessing@3.0/manual/Writing-Custom-Effects.html](https://docs.unity3d.com/Packages/com.unity.postprocessing@3.0/manual/Writing-Custom-Effects.html)
Did any of you find a solution? Kind of curious what could be done to re-sort everything all together.
---
### Author:  [@GoGoGadget](https://discussions.unity.com/u/GoGoGadget)
#### Post date: [May 27, 2022, 5:11am UTC](https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074/4 "2022-05-27T05:11:41Z")
Have you tried shuffling the order of the effects on the volume component?
---
### Author:  [@a52](https://discussions.unity.com/u/a52)
#### Post date: [October 25, 2023, 10:04pm UTC](https://discussions.unity.com/t/change-default-post-processing-stack-effects-order/748074/5 "2023-10-25T22:04:53Z")
> [@GoGoGadget](#):
>
> Have you tried shuffling the order of the effects on the volume component?
This does not seem to do anything.