public Color MusicToRGB()
{
spectrum = (AudioEffectSpectrumAnalyzerInstance)AudioServer.GetBusEffectInstance(0, 0);
high = RangeLerp(GD.Linear2Db(spectrum.GetMagnitudeForFrequencyRange(5000, 20000, AudioEffectSpectrumAnalyzerInstance.MagnitudeMode.Average).Length()), bottomDb, 20, 0, 255);
mid = RangeLerp(GD.Linear2Db(spectrum.GetMagnitudeForFrequencyRange(500, 5000, AudioEffectSpectrumAnalyzerInstance.MagnitudeMode.Average).Length()), bottomDb, 20, 0, 255);
low = RangeLerp(GD.Linear2Db(spectrum.GetMagnitudeForFrequencyRange(10, 200, AudioEffectSpectrumAnalyzerInstance.MagnitudeMode.Average).Length()), bottomDb, 20, 0, 255);
return(Color.Color8
(
(byte)high,
(byte)mid,
(byte)low,
255
));
}
public override void _Process(float delta)
{
float maxFreq = 11050;
int minDbl = 60;
int segs = 16;
float prevHz = 0;
for (int i = 0; i < segs; i++)
{
var hz = i * maxFreq / segs;
var mag = spectrumEffect.GetMagnitudeForFrequencyRange(prevHz, hz);
var nrg = Mathf.Clamp((minDbl + GD.Linear2Db(mag.Length())) / minDbl, 0, 1);
var ring = GetNode("Woofer").GetNode <MeshInstance>("Ring" + i);
ring.Scale = new Vector3(ring.Scale.x, nrg * 20 + 1, ring.Scale.z);
((SpatialMaterial)ring.MaterialOverride).EmissionEnergy = nrg;
prevHz = hz;
}
}