Hi,
Thank you for your code, it was really helpful.
The problem is that Emitter.OverrideMaxDitance is only used when the Event is played, it isn’t used to update the attenuation distances every update. It is very confusing and I’ll make a task to make it easier to understand. What you want to use is:
m_Source.EventInstance.setProperty(FMOD.Studio.EVENT_PROPERY.MAXIMUM_DISTANCE, float)
This is the value that will update the size of the attenuation distances.
I have updated your code to use the new property:
Updated Code
public class OcclusionScript : MonoBehaviour
{
private FMODUnity.StudioEventEmitter m_Source;
public Transform Listener;
public float OccludedMaxDistance = 0.0f;
public float OccludedMinDistance = 0.0f;
public float FadeSpeed = 10.0f;
private float MaxTarget, MinTarget;
private float CurrentMaxDist, CurrentMinDist;
void Start()
{
m_Source = gameObject.GetComponent<FMODUnity.StudioEventEmitter>();
}
void Update()
{
//Retrieving the property values to use in the Mathf function
ERRCHECK(m_Source.EventInstance.getProperty(FMOD.Studio.EVENT_PROPERTY.MINIMUM_DISTANCE, out CurrentMinDist), "Failed to retrieve min distance with result:");
ERRCHECK(m_Source.EventInstance.getProperty(FMOD.Studio.EVENT_PROPERTY.MAXIMUM_DISTANCE, out CurrentMaxDist), "Failed to retrieve max distance with result:");
// Using hitinfo insead of a layer mask.
if (Physics.Linecast(transform.position, Listener.position, out RaycastHit hitInfo))
{
if (hitInfo.collider.tag == "Listener")
{
// We can still use the these varaiables to set our max distances
MaxTarget = m_Source.OverrideMaxDistance;
MinTarget = m_Source.OverrideMinDistance;
}
else
{
MaxTarget = OccludedMaxDistance;
MinTarget = OccludedMinDistance;
}
}
else
{
MaxTarget = OccludedMaxDistance;
MinTarget = OccludedMinDistance;
}
ERRCHECK(m_Source.EventInstance.setProperty(FMOD.Studio.EVENT_PROPERTY.MAXIMUM_DISTANCE, Mathf.MoveTowards(CurrentMaxDist, MaxTarget, Time.deltaTime * FadeSpeed)), "Failed to set max distance with result:");
ERRCHECK(m_Source.EventInstance.setProperty(FMOD.Studio.EVENT_PROPERTY.MINIMUM_DISTANCE, Mathf.MoveTowards(CurrentMinDist, MinTarget, Time.deltaTime * FadeSpeed)), "Failed to set min distance with result:");
}
/// <summary>
/// Error checking FMOD function calls and printing their results in Editor only
/// </summary>
private void ERRCHECK(FMOD.RESULT result, string failMsg)
{
#if UNITY_EDITOR
if (result != FMOD.RESULT.OK)
Debug.Log(failMsg + " " + result);
#endif
}
}
Thank you for bringing this to our attention, hope this helps!