Mesh — Aspose.3D FOSS for .NET

public class Mesh : Geometry

using Aspose.ThreeD;
using Aspose.ThreeD.Entities;

// Create the mesh and add three vertex positions
var mesh = new Mesh();
mesh.ControlPoints.Add(new Vector4(0.0, 0.0, 0.0, 1.0));   // vertex 0
mesh.ControlPoints.Add(new Vector4(1.0, 0.0, 0.0, 1.0));   // vertex 1
mesh.ControlPoints.Add(new Vector4(0.5, 1.0, 0.0, 1.0));   // vertex 2

// Define one triangle face using vertex indices
mesh.CreatePolygon(0, 1, 2);

// Attach to a scene and save
var scene = new Scene();
scene.RootNode.CreateChildNode("triangle", mesh);
scene.Save("triangle.stl");

var sphere = new Sphere(1);
var mesh = sphere.ToMesh();

Console.WriteLine("Vertices: " + mesh.ControlPoints.Count);
Console.WriteLine("Polygons: " + mesh.PolygonCount);