AnimationClip压缩-动画文件压缩

动画压缩方法
一、常用方法
1. Rig->Animation Type:改为Generic
2. Animations->Anim.Compression:Optimal
二、高级方法
1. 去掉AnimationClip中的无效曲线：例如ScaleCurve
using UnityEngine;
using UnityEditor;
using System.Collections.Generic;

public class RemoveCurve : AssetPostprocessor
{

void OnPostprocessModel(GameObject g)
{
Apply(g);
}

void Apply(GameObject g)
{
List<AnimationClip> animationClipList = new List<AnimationClip>(AnimationUtility.GetAnimationClips(g));
if (animationClipList.Count == 0)
{
AnimationClip[] objectList = UnityEngine.Object.FindObjectsOfType(typeof(AnimationClip)) as AnimationClip[];
animationClipList.AddRange(objectList);
}

foreach (AnimationClip theAnimation in animationClipList)
{
foreach (EditorCurveBinding theCurveBinding in AnimationUtility.GetCurveBindings(theAnimation))
{
string name = theCurveBinding.propertyName.ToLower();
if (name.Contains("scale"))
{
AnimationUtility.SetEditorCurve(theAnimation, theCurveBinding, null);
}
}
}
}
}

2. 压缩AnimationClip文件float的精度

public static bool CompressAnimationClip(Object o)
{
string animationPath = AssetDatabase.GetAssetPath(o);
try
{
//AnimationClip clip = GameObject.Instantiate(o) as AnimationClip;
AnimationClip clip = o as AnimationClip;
AnimationClipCurveData[] curves = null;
curves = AnimationUtility.GetAllCurves(clip);
Keyframe key;
Keyframe[] keyFrames;
for (int ii = 0; ii < curves.Length; ++ii)
{
AnimationClipCurveData curveDate = curves[ii];
if (curveDate.curve == null || curveDate.curve.keys == null)
{
//Debug.LogWarning(string.Format("AnimationClipCurveData {0} don't have curve; Animation name {1} ", curveDate, animationPath));
continue;
}
keyFrames = curveDate.curve.keys;
for (int i = 0; i < keyFrames.Length; i++)
{
key = keyFrames[i];
key.value = float.Parse(key.value.ToString("f3"));
key.inTangent = float.Parse(key.inTangent.ToString("f3"));
key.outTangent = float.Parse(key.outTangent.ToString("f3"));
keyFrames[i] = key;
}
curveDate.curve.keys = keyFrames;
clip.SetCurve(curveDate.path, curveDate.type, curveDate.propertyName, curveDate.curve);
}
//AssetDatabase.CreateAsset(clip, animationPath);
Debug.Log(string.Format(" CompressAnimationClip {0} Success !!!", animationPath));
return true;
}
catch(Exception e)
{
Debug.LogError(string.Format("CompressAnimationClip Failed !!! animationPath : {0} error: {1}", animationPath, e));
return false;
}
}

3. 简化骨骼名字
unity的动画数据存储的时候按每个骨骼节点的轨道拆分存储的，每个骨骼存储的是从根节点到这个骨骼节点的hierarchy路径，字符串的，骨骼多了之后这部分字符串不少。如果把所有骨骼名字都简化，这里可以省不少内存

————————————————
版权声明：本文为CSDN博主「石圣」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/alexander_xfl/article/details/66975570