Mesh.GetAllBoneWeights

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NativeArray<BoneWeight1> 返回网格的所有非零骨骼权重（按顶点索引顺序）。

描述

获取网格的骨骼权重。

在数组的每个 BoneWeight1 结构中，权重采用降序，加起来等于 1。

使用 Mesh.GetBonesPerVertex 可获取每个顶点的非零权重数量，然后使用该数量可遍历此数据。

另请参阅：Mesh.SetBoneWeights、Mesh.GetBonesPerVertex、Mesh.boneWeights、Mesh.GetBoneWeights ModelImporter.maxBonesPerVertex、QualitySettings.skinWeights、SkinnedMeshRenderer.quality。

using UnityEngine;
using Unity.Collections;

public class SkinnedMeshExample : MonoBehaviour {
    void Start() {
        // Get a reference to the mesh
        var skinnedMeshRenderer = GetComponent<SkinnedMeshRenderer>();
        var mesh = skinnedMeshRenderer.sharedMesh;

        // Get the number of bone weights per vertex
        var bonesPerVertex = mesh.GetBonesPerVertex();

        // Get all the bone weights, in vertex index order
        var boneWeights = mesh.GetAllBoneWeights();

        // Keep track of where we are in the array of bones, as we iterate over the vertices
        var bonesIndex = 0;

        // Iterate over the vertices
        for (var vertIndex = 0; vertIndex < mesh.vertexCount; vertIndex++) {
            var numberOfBonesForThisVertex = bonesPerVertex[vertIndex];
            Debug.Log("This vertex has " + numberOfBonesForThisVertex + " bones");

            // For each vertex, iterate over the array of bones the correct number of times
            for (var i = 0; i < numberOfBonesForThisVertex; i++) {
                var currentBoneWeight = boneWeights[bonesIndex];
                Debug.Log("Bone weight " + currentBoneWeight.boneIndex + " == " + currentBoneWeight.weight);
                bonesIndex++;
            }
        }
    }
}