Aspose.3D  for .NET

Add Blind Watermark Verification to U3D via C#

Build your own .NET apps to add blind watermark verification to U3D files using server-side APIs.

How to Watermark Verification to U3D File Using C#

In order to watermark verification U3D file, we’ll use

Aspose.3D for .NET

API which is a feature-rich, powerful and easy to use API for C# platform to be used with add any watermark verification. Open


package manager, search for Aspose.3D and install. You may also use the following command from the Package Manager Console.

Package Manager Console Command

PM> Install-Package Aspose.3D

Steps to Add Blind Watermark Verification to U3D via C#

Aspose.3D makes it easy for the developers to add blind watermark verification to the U3D file with just few lines of code.

  • Load U3D file via the constructor of Scene class
  • Get the mesh class of Aspose.3D
  • Add password using Aspose.3D’s DecodeWatermark method
  • Call the Scene.Save method with object

System Requirements

Aspose.3D for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Mono
  • Development environment like Microsoft Visual Studio
  • Aspose.3D for .NET referenced in your project

C# code to Add Blind Watermark Verification to U3D

//Source files that need to be watermarked for verification
string file = "template.u3d";

// create an instance of Scene
Scene scene = new Scene(file);
string text =null;

//Add password to verify watermark by DecodeWatermark method
    scene.RootNode.Accept((Node node) =>
        var mesh = node.GetEntity<Mesh>();
        if (mesh != null)
            text = Watermark.DecodeWatermark(mesh, "1234");
            if (text != null)
                return false;
            return true;
catch (UnauthorizedAccessException)
    return "Password error";

//Returns null if this file has no watermark,If there is a watermark, return the watermark content
return text;
  • About Aspose.3D for .NET API

    Aspose.3D is a CAD and Gameware API to load, modify and convert 3D files. API is a standalone and does not require any any 3D modeling or rendering software. One can easily use API for Discreet3DS, WavefrontOBJ, STL (ASCII, Binary), Universal3D, FBX (ASCII, Binary), Collada, glTF, PLY, GLB, DirectX and more formats.

    Free App to Add Blind Watermark Verification to U3D

    Other Supported App to Add Blind Watermark Verification to Formats

    Using C#, One can also add blind watermark verification to many other file formats including.

    3MF (3D Manufacturing Format)
    AMF (Additive Manufacturing Format)
    ASE (2D Animation File)
    DAE (Digital Asset Exchange)
    DXF (Drawing Interchange Format)
    DRC (Google Draco)
    FBX (3D Format)
    GLB (3D File Binary Representation)
    GLTF (GL Transmission Format)
    JT (Jupiter Tessellation File)
    OBJ (3D File Format)
    PLY (Polygon File Format)
    PDF (3D PDF)
    RVM (AVEVA Plant Design Model)
    STL (Interchangeable 3D Surface Geometry)
    3DS (3D Studio Mesh File Format)
    VRML (Virtual Reality Modeling Language)
    X (DirectX Model Image)
    USD (Universal Scene Description)
    USDZ (Universal Scene Description Zip Archive)