Mesh.vertexBufferCount

描述

获取网格中存在的顶点缓冲区数。（只读）

大多数网格只包含一个顶点缓冲区，但是某些网格（如某些平台上的蒙皮网格） 可能包含多个缓冲区。此属性最常与 GetNativeVertexBufferPtr 一起用于 通过本机代码插件启用网格操作。

using UnityEngine;
using UnityEngine.Rendering;

public class ExampleScript : MonoBehaviour
{
    void Start()
    {
        // Create a Mesh with custom vertex data layout:
        // position and normal go into stream 0,
        // color goes into stream 1.
        var mesh = new Mesh();
        mesh.SetVertexBufferParams(10,
            new VertexAttributeDescriptor(VertexAttribute.Position, VertexAttributeFormat.Float32, 3, stream:0),
            new VertexAttributeDescriptor(VertexAttribute.Normal, VertexAttributeFormat.Float32, 3, stream:0),
            new VertexAttributeDescriptor(VertexAttribute.Color, VertexAttributeFormat.UNorm8, 4, stream:1));

        // Prints 2 (two vertex streams)
        Debug.Log($"Vertex stream count: {mesh.vertexBufferCount}");

        // Cleanup
        Object.DestroyImmediate(mesh);
    }
}

Additional resources: Native code plugins, GetNativeVertexBufferPtr, SetVertexBufferParams, GetVertexAttributeOffset.