public void ComputeNormals() { var builder = new MeshBuilder(false); builder.AddPolygon(new List<Vector3> { new Vector3(0f, 0f, 0f), new Vector3(7f, 0f, 0f), new Vector3(7f, 0f, 7f), }); Assert.IsNull(builder.Normals); Assert.IsFalse(builder.HasNormals); builder.ComputeNormalsAndTangents(MeshFaces.Default); Assert.IsTrue(builder.HasNormals); Assert.AreEqual(3, builder.Normals.Count); }