Code to Convert FBX to STL in C#. For more details: https://kb.aspose.com/3d/net/how-to-convert-fbx-to-stl-in-csharp/

How to Convert FBX to STL in C#.cs

using Aspose.ThreeD;
namespace AsposeProjects
{
    class Program
    {
        static void Main(string[] args) // Main function to convert FBX to STL using C#
        {
            // Initialize license
            License lic = new License();
            lic.SetLicense("Aspose.Total.lic");

           // Load the input FBX file
            Scene document = Scene.FromFile("test.fbx");

            // Create StlSaveOptions class object
            Aspose.ThreeD.Formats.StlSaveOptions options = new Aspose.ThreeD.Formats.StlSaveOptions();

            // Convert FBX to STL file 
            document.Save("output.stl", options);

            System.Console.WriteLine("FBX to STL is converted successfully");
        }
    }
}