Change Post Processing Profile

To change the post-processing profile in Unity using a script, you can use the following code:

using UnityEngine;

using UnityEngine.Rendering.PostProcessing;

public class ChangePostProcessingProfile : MonoBehaviour

{

    public PostProcessProfile newProfile;

    void Start()

    {

        // Get the post-processing volume

        PostProcessVolume volume = GetComponent<PostProcessVolume>();

        // Set the new profile

        volume.profile = newProfile;

    }

}

This script will change the post-processing profile of the PostProcessVolume component that it is attached to. To use this script, simply attach it to the GameObject that has the PostProcessVolume component, and then drag the new post-processing profile you want to use onto the "New Profile" field in the Inspector.

The script will then change the post-processing profile to the new one when the scene starts. You can also call the volume.profile = newProfile; line from any other script to change the post-processing profile at any time during runtime.