46 lines
1.5 KiB
C#
46 lines
1.5 KiB
C#
using UnityEngine;
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using System.Collections;
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public class AudioMouthController : MonoBehaviour
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{
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public SkinnedMeshRenderer meshRenderer; // 模型的SkinnedMeshRenderer组件
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public int blendShapeIndex; // blendshape索引
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public float blendWeightMultiplier = 100f; // blendshape权重倍增器
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public float smoothTime = 0.1f; // 平滑过渡时间
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[SerializeField]private AudioSource audioSource; // 音频源
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private float blendWeight; // blendshape权重
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private float blendWeightVelocity; // blendshape权重的速度
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void Update()
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{
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// 如果音频正在播放，则平滑设置blendshape的权重
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if (audioSource.isPlaying)
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{
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float amplitude = GetAmplitude();
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blendWeight = Mathf.SmoothDamp(blendWeight, amplitude * blendWeightMultiplier, ref blendWeightVelocity, smoothTime);
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meshRenderer.SetBlendShapeWeight(blendShapeIndex, blendWeight);
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}
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else
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{
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blendWeight = Mathf.SmoothDamp(blendWeight, 0f, ref blendWeightVelocity, smoothTime);
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meshRenderer.SetBlendShapeWeight(blendShapeIndex, blendWeight);
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}
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}
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// 获取音频振幅
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float GetAmplitude()
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{
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float[] samples = new float[512];
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audioSource.GetOutputData(samples, 0);
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float sum = 0f;
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for (int i = 0; i < samples.Length; i++)
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{
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sum += Mathf.Abs(samples[i]);
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}
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return sum / samples.Length;
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}
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}
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