// === METHODS ===
// Use this for initialization
void Start()
{
renderSettings = FindObjectOfType <ISMRenderSettings>();
// Plug the associated audio source to the given mixer group
source = GetComponent <AudioSource>();
AudioMixerGroup mixerGroup =
renderSettings.mixer.FindMatchingGroups(mixerGroupName)[0];
source.outputAudioMixerGroup = mixerGroup;
// initialize impulse responses
var irNumSamples = Mathf.CeilToInt(
renderSettings.IRLength * AudioSettings.outputSampleRate);
ir = new float[irNumSamples];
ir[0] = 1.0f;
// Set up Convolution Reverb
float fParamIdx;
renderSettings.mixer.GetFloat(mixerGroupName, out fParamIdx);
paramIdx = (int)fParamIdx;
ConvolutionReverbInput.UploadSample(ir, paramIdx, name);
nextSync = AudioSettings.dspTime;
// Select random vectors as placeholders for the old positions
oldSourcePosition = Random.insideUnitSphere * 1e3f;
}
// Update is called once per frame
void Update()
{
// Check if either the source or the listener has moved or the
// simulation parameters have changed
if (LocationsHaveChanged() || renderSettings.IRUpdateRequested)
{
// Calculate ISM impulse response
ISMUpdate();
}
// Check if it is time to update the impulse response
if (AudioSettings.dspTime > nextSync)
{
// Upload the final impulse response
ConvolutionReverbInput.UploadSample(ir, paramIdx, name);
nextSync = nextSync + updateInterval;
}
// Update old source position
oldSourcePosition = SourcePosition;
}
