private static extern void Internal_CreateInstanceMeshData(Mesh instance, IntPtr data, SubMesh[] subMeshes,
MeshUsage usage);
/// <summary>
/// Creates a new mesh from an existing mesh data. Created mesh will match the vertex and index buffers described
/// by the mesh data exactly. Mesh will have specified the sub-meshes.
/// </summary>
/// <param name="data">Vertex and index data to initialize the mesh with.</param>
/// <param name="subMeshes">Defines how are indices separated into sub-meshes, and how are those sub-meshes rendered.
/// Sub-meshes may be rendered independently.</param>
/// <param name="usage">Optimizes performance depending on planned usage of the mesh.</param>
public Mesh(MeshData data, SubMesh[] subMeshes, MeshUsage usage = MeshUsage.Default)
{
IntPtr dataPtr = IntPtr.Zero;
if (data != null)
dataPtr = data.GetCachedPtr();
Internal_CreateInstanceMeshData(this, dataPtr, subMeshes, usage);
}
private static extern void Internal_CreateInstance(Mesh instance, int numVertices,
int numIndices, SubMesh[] subMeshes, MeshUsage usage, VertexType vertex, IndexType index);
/// <summary>
/// Creates a new mesh with enough space to hold the a number of primitives using the specified layout. Indices can
/// be references by multiple sub-meshes.
/// </summary>
/// <param name="numVertices">Number of vertices in the mesh.</param>
/// <param name="numIndices">Number of indices in the mesh. </param>
/// <param name="subMeshes">Defines how are indices separated into sub-meshes, and how are those sub-meshes rendered.
/// Sub-meshes may be rendered independently.</param>
/// <param name="usage">Optimizes performance depending on planned usage of the mesh.</param>
/// <param name="vertex">Controls how are vertices organized in the vertex buffer and what data they contain.</param>
/// <param name="index">Size of indices, use smaller size for better performance, however be careful not to go over
/// the number of vertices limited by the size.</param>
public Mesh(int numVertices, int numIndices, SubMesh[] subMeshes, MeshUsage usage = MeshUsage.Default,
VertexType vertex = VertexType.Position, IndexType index = IndexType.Index32)
{
Internal_CreateInstance(this, numVertices, numIndices, subMeshes, usage, vertex, index);
}
