forked from BilalY/Rasagar
82 lines
3.0 KiB
C#
82 lines
3.0 KiB
C#
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#if VFX_HAS_AUDIO
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using System;
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using UnityEngine.VFX;
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namespace UnityEngine.VFX.Utility
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{
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[AddComponentMenu("VFX/Property Binders/Audio Spectrum Binder")]
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[VFXBinder("Audio/Audio Spectrum to AttributeMap")]
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class VFXAudioSpectrumBinder : VFXBinderBase
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{
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public enum AudioSourceMode
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{
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AudioSource,
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AudioListener
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}
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public string CountProperty { get { return (string)m_CountProperty; } set { m_CountProperty = value; } }
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[VFXPropertyBinding("System.UInt32"), SerializeField, UnityEngine.Serialization.FormerlySerializedAs("m_CountParameter")]
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protected ExposedProperty m_CountProperty = "Count";
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public string TextureProperty { get { return (string)m_TextureProperty; } set { m_TextureProperty = value; } }
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[VFXPropertyBinding("UnityEngine.Texture2D"), SerializeField, UnityEngine.Serialization.FormerlySerializedAs("m_TextureParameter")]
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protected ExposedProperty m_TextureProperty = "SpectrumTexture";
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public FFTWindow FFTWindow = FFTWindow.BlackmanHarris;
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public uint Samples = 64;
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public AudioSourceMode Mode = AudioSourceMode.AudioSource;
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public AudioSource AudioSource = null;
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private Texture2D m_Texture;
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private float[] m_AudioCache;
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private Color[] m_ColorCache;
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public override bool IsValid(VisualEffect component)
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{
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bool mode = (Mode == AudioSourceMode.AudioSource ? AudioSource != null : true);
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bool texture = component.HasTexture(TextureProperty);
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bool count = component.HasUInt(CountProperty);
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return mode && texture && count;
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}
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void UpdateTexture()
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{
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if (m_Texture == null || m_Texture.width != Samples)
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{
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m_Texture = new Texture2D((int)Samples, 1, TextureFormat.RFloat, false);
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m_AudioCache = new float[Samples];
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m_ColorCache = new Color[Samples];
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}
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if (Mode == AudioSourceMode.AudioListener)
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AudioListener.GetSpectrumData(m_AudioCache, 0, FFTWindow);
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else if (Mode == AudioSourceMode.AudioSource)
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AudioSource.GetSpectrumData(m_AudioCache, 0, FFTWindow);
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else throw new NotImplementedException();
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for (int i = 0; i < Samples; i++)
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{
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m_ColorCache[i] = new Color(m_AudioCache[i], 0, 0, 0);
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}
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m_Texture.SetPixels(m_ColorCache);
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m_Texture.name = "AudioSpectrum" + Samples;
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m_Texture.Apply();
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}
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public override void UpdateBinding(VisualEffect component)
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{
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UpdateTexture();
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component.SetTexture(TextureProperty, m_Texture);
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component.SetUInt(CountProperty, Samples);
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}
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public override string ToString()
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{
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return string.Format("Audio Spectrum : '{0} samples' -> {1}", m_CountProperty, (Mode == AudioSourceMode.AudioSource ? "AudioSource" : "AudioListener"));
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}
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}
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}
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#endif
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