data | 索引缓冲区数据数组。 |
dataStart | 要从中进行复制的数据中的第一个元素。 |
meshBufferStart | 用于接收数据的网格索引缓冲区中的第一个元素。 |
count | 要复制的索引数量。 |
flags | 控制函数行为的标志,请参阅 MeshUpdateFlags。 |
设置网格索引缓冲区的数据。
注意:此方法面向旨在实现最高性能的高级用户,因为它在主要适用于原始索引缓冲区、顶点缓冲区和网格子集数据的基础网格数据结构上运行。Unity 使用此方法可执行非常少的数据验证,因此必须确保数据有效。
特别是必须确保 SubMesh 索引范围和拓扑通过 SetSubMesh 进行更新。
默认情况下,会检查索引缓冲区 data
数组中是否存在越界索引。flags
参数可以设置为 MeshUpdateFlags.DontValidateIndices
以关闭验证,从而提高性能。
有关从脚本向网格分配数据的较简单方法与较高级方法之间差异的信息,请参阅 Mesh 页面上的说明。
常规使用模式为:
var mesh = new Mesh();
// setup vertex buffer data mesh.vertices = ...;
// set index buffer mesh.SetIndexBufferParams(...); mesh.SetIndexBufferData(...);
// setup information about mesh subsets mesh.subMeshCount = ...; mesh.SetSubMesh(index, ...);
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.