89 lines
2.5 KiB
C#
89 lines
2.5 KiB
C#
using UnityEngine;
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using System.Collections.Generic;
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using Assets.WasapiAudio.Scripts.Unity;
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// only slightly different from the SpectrumMaterialBinder
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// in that it modifies a single material for a shader
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// instead of the renderer's instance of that material
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[RequireComponent(typeof(Material))]
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public class SpectrumShaderBinder : MonoBehaviour
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{
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public AudioSource source;
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public Material material;
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private Texture2D _texture;
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private Color[] _colorCache;
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[SerializeReference]
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[SerializeReferenceButton]
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public List<SpectrumTransformer> Transformers = new List<SpectrumTransformer>();
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[SpectrumDataPreview]
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public SpectrumData Preview;
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private void Start() {
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if (source == null) {
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Debug.Log("Material Binder needs WASAPI Source.");
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gameObject.SetActive(false);
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}
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}
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private void Update() {
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UpdateTexture();
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UpdateBinding();
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}
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private void InitialiseTexture() {
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Debug.Log("Reinitialising spectrum texture...");
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_texture = new Texture2D(source.SpectrumSize, 1, TextureFormat.RFloat, false);
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_colorCache = new Color[source.SpectrumSize];
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_texture.name = $"AudioSpectrum{source.SpectrumSize}";
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}
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private float[] GetSpectrumData() {
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// Get raw / unmodified spectrum data
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var spectrumData = source.GetSpectrumData();
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// Run spectrum data through all configured transformers
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if (Transformers != null && Transformers.Count > 0) {
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foreach (var transformer in Transformers) {
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spectrumData = transformer.Transform(spectrumData);
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}
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}
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Preview.Values = spectrumData;
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return spectrumData;
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}
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private void UpdateTexture() {
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// init
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if (_texture == null) InitialiseTexture();
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var spectrumData = GetSpectrumData();
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for (int i = 0; i < source.SpectrumSize; i++) {
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_colorCache[i] = new Color(spectrumData[i], 0, 0, 0);
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}
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_texture.SetPixels(_colorCache);
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_texture.wrapMode = TextureWrapMode.Clamp;
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_texture.Apply();
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}
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public void UpdateBinding() {
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UpdateTexture();
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// !!!!
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// you must set these via a literal string for some raeson
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// having them as a public property didn't work
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material.SetFloat("_SpectrumSize", source.SpectrumSize);
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material.SetTexture("_SpectrumTexture", _texture);
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}
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public string ToString() {
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return "Spectrum Material Binder";
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}
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}
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