Auido Mixer Reverb / Rect Reverb Zone

Audio & Video
,
1

Is it possible to make a reverb zone effect with an audio mixer? Or is there a way to make reerb zones rectangular or polygonal (2D game)?

2

You could certainly add a reverb effect to a mixer track and control it’s parameters to achieve the effect you want. Have a look at this tutorial if you’re not familiar with audio mixer exposed parameters:

Built-in reverb zones are only spherical/circular, so for any other shape of zone you will have to do some scripting.

using UnityEngine;
using UnityEngine.Audio;

public class RectangularReverbZone : MonoBehaviour
{
    public AudioMixer audioMixer;
    private Transform playerTransform;
    private BoxCollider2D boxCollider;

    private void Start()
    {
        playerTransform = GameObject.FindGameObjectWithTag("Player").transform;
        boxCollider = GetComponent<BoxCollider2D>();
    }

    private void Update()
    {
        if (playerTransform == null) return; // Exit if there's no player

        // If the player is within the box collider
        if (boxCollider.bounds.Contains(playerTransform.position))
        {
            // Calculate distance from the player to the closest edge of the box
            float distance = Vector2.Distance(playerTransform.position, boxCollider.ClosestPoint(playerTransform.position));
           
            // Normalize the distance with respect to the box's diagonal (maximum possible distance)
            float normalizedDistance = distance / boxCollider.bounds.extents.magnitude;
           
            // Calculate the reverb amount (inversed, because we want more reverb when closer)
            float reverbAmount = 1f - normalizedDistance;

            // Set the reverb amount in the audio mixer
            audioMixer.SetFloat("ReverbAmount", reverbAmount);
        }
        else
        {
            // Player is outside the reverb zone, so set reverb amount to 0
            audioMixer.SetFloat("ReverbAmount", 0f);
        }
    }
}