Unity中大型未分段网格的运行时加载

1 回答

• 1

  正如您所说，网格在运行时或编辑器中不能包含超过650,000个顶点 .

  在运行时，您应该生成碎片 . 例如，给定100000个顶点，然后创建如下的网格：

  // Your mesh data from the point cloud scan of a room
  long[] indices = ...;
  Vector3[] positions = = ...;
  
  // Split your mesh data into two parts:
  // one that have 60000 vertices and another that have 40000 vertices.
  
  // create meshes
  {
      Mesh mesh = new Mesh();
      GameObject obj = new GameObject();
      obj.AddComponent<MeshFilter>().sharedMesh = mesh;
      var positions = new Vector3[60000];
      var indices = new int[count_of_indices];//The value of count_of_indices depends on how you split the mesh data.
  
      // copy first 60000 vertices to positions and indices
  
      mesh.vertices = positions;
      mesh.triangles = indices;
  }
  {
      Mesh mesh = new Mesh();
      GameObject obj = new GameObject();
      obj.AddComponent<MeshFilter>().sharedMesh = mesh;
      var positions = new Vector3[4000];
      var indices = new int[count_of_indices];
  
      // copy the remaining 40000 vertices to positions and indices
  
      mesh.vertices = positions;
      mesh.triangles = indices;
  }
  

  回复于 2024-05-08T10:52:30+08:00