我使用objImporter，它不是问题创建的统一，而是导入创建的3dmax，这是问题

Question

我使用objImporter，它不是问题创建的统一，而是导入创建的3dmax，这是问题

사용한스크립트https://wiki.unity3d.com/index.php/ObjImporter

这个错误发生了

Mesh.vertices is too large. A mesh may not have more than 65000 vertices.
UnityEngine.Mesh:set_vertices(Vector3[])
ObjImporter:ImportFile(String) (at Assets/MyAssets/Scripts/ObjImporter.cs:52)
UIManager:Load() (at Assets/MyAssets/Scripts/UIManager.cs:50)
UnityEngine.EventSystems.EventSystem:Update()

Mesh.uv is out of bounds. The supplied array needs to be the same size as the Mesh.vertices array.
UnityEngine.Mesh:set_uv(Vector2[])
ObjImporter:ImportFile(String) (at Assets/MyAssets/Scripts/ObjImporter.cs:53)
UIManager:Load() (at Assets/MyAssets/Scripts/UIManager.cs:50)
UnityEngine.EventSystems.EventSystem:Update()

Mesh.normals is out of bounds. The supplied array needs to be the same size as the Mesh.vertices array.
UnityEngine.Mesh:set_normals(Vector3[])
ObjImporter:ImportFile(String) (at Assets/MyAssets/Scripts/ObjImporter.cs:54)
UIManager:Load() (at Assets/MyAssets/Scripts/UIManager.cs:50)
UnityEngine.EventSystems.EventSystem:Update()

Failed setting triangles. Some indices are referencing out of bounds vertices. IndexCount: 166833, VertexCount: 0
UnityEngine.Mesh:set_triangles(Int32[])
ObjImporter:ImportFile(String) (at Assets/MyAssets/Scripts/ObjImporter.cs:55)
UIManager:Load() (at Assets/MyAssets/Scripts/UIManager.cs:50)
UnityEngine.EventSystems.EventSystem:Update()

Answer 1

问题是脚本使用16位索引的网格，它只支持2^16个顶点大小的模型。然而，一致性支持32位索引，支持最多2^32个顶点=~40亿。您需要做的就是添加这一行：

mesh.indexFormat = Rendering.IndexFormat.UInt32;

在此之后：

Mesh mesh = new Mesh();

在函数ImportFile中。

注意，一些移动设备不支持32位索引。

https://docs.unity3d.com/ScriptReference/Mesh-indexFormat.html

Answer 2

我相信你的问题与模型大小有关，因为网格可能有超过65000个顶点。你应该阅读65000个顶点的每一块，然后把它们放在一个网格中，然后把所有的网格块收集到一个网格中，即共享网格，

我强烈建议使用这个资产简单.OBJ，这样可以节省您的时间。