Unity: 自定义角色中的蒙皮网格替换

发表于   |   分类于   |  

Unity允许运行时替换SkinnedMeshRenderer的网格来实现自定义角色部件，分两种情况Optimize Game Objects 于 Nonoptimized GameObjects

Optimize Game Objects是模型Rig选项，开启后骨架不会在场景中存在，而是放入了内部存储。这种情况下只需简单替换mesh就行，不需要重新设置骨骼信息

1
2
3
4
5
6
public static void ReplaceSkinnedMeshOptimized(SkinnedMeshRenderer src, SkinnedMeshRenderer dst)
{
    dst.sharedMaterials = src.sharedMaterials;
    dst.sharedMesh = src.sharedMesh;
    dst.localBounds = src.localBounds;
}

对于没有优化的Rig 需要重新设置骨骼信息

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
public static void ReplaceSkinnedMeshNonOptimized(SkinnedMeshRenderer src, SkinnedMeshRenderer dst)
{
    Dictionary<string, Transform> skeleton = new Dictionary<string, Transform>();
    Transform[] allTrans =  dst.transform.GetComponentsInChildren<Transform>(true);
    foreach (var item in allTrans)
    {
        skeleton[item.name] = item;
    }

    dst.sharedMaterials = src.sharedMaterials;
    dst.sharedMesh = src.sharedMesh;
    Transform[] bones = new Transform[src.bones.Length];
    for (int ii = 0; ii < bones.Length; ii++)
    {
        bones[ii] = skeleton[src.bones[ii].name];
    }

    dst.bones = bones;
    dst.rootBone = skeleton[src.rootBone.name];
    dst.localBounds = src.localBounds;
}