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RVM

Merge RVM Formats via C#

Build your own .NET apps to merge RVM files using server-side APIs.

How to Merge RVM File Using C#

In order to merge RVM 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 merge any 3D file. Open

NuGet

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 Merge RVM via C#

Aspose.3D makes it easy for the developers to merge the RVM file with just few lines of code.

Merge multiple RVM files by looping
After merging, a usdz file is generated, waiting for download processing
Load the generated usdz file through the constructor of the Scene class
Process usdz files and save them in the format you want

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 Merge RVM
//Multiple source files that need to be merged
string[] files = {"template.rvm", "template2.rvm" };

//Process file merge to generate usdz file
Scene scene = new Scene();
int i = 0;
foreach (var file in files)
{
    using var fs = new FileStream(file, FileMode.Open, FileAccess.Read);
    FileFormat fmt = FileFormat.Detect(fs, files[i]);
    var subNode = scene.RootNode.CreateChildNode(files[i]);
    i++;
    try
    {
        Scene subScene = new Scene();
        var opt = fmt.CreateLoadOptions();
        subScene.Open(fs, opt);
        subNode.Entity = PolygonModifier.MergeMesh(subScene);
        MoveTo(subScene.RootNode, subNode);
    }
        catch (Exception)
        {
        }
}
var reviewFile = "result.usdz";
var usdz = new UsdSaveOptions(FileFormat.USDZ)
{
    PrimitiveToMesh = false,
    ExportMetaData = true
};
scene.Save(reviewFile, usdz);

//Process usdz files and save them in the format you want
var scene2 = new Scene();
var physicalFile = reviewFile;
using var fs2 = new FileStream(physicalFile, FileMode.Open, FileAccess.Read);
var fmt2 = FileFormat.Detect(fs2, "result");
var subScene2 = new Scene();
var opt2 = fmt2.CreateLoadOptions();
subScene2.Open(fs2, opt2);
var newNode = scene2.RootNode.CreateChildNode("");
double[] value = { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 };
newNode.Transform.TransformMatrix = new Matrix4(value);
MoveTo(subScene2.RootNode, newNode);
var output = "merger.fbx";
scene2.Save(output, FileFormat.FBX7400ASCII); 

//MoveTo class for call processing
public static void MoveTo(Node subScene, Node parent)
{
    while (subScene.ChildNodes.Count > 0)
    {
        var node = subScene.ChildNodes[0];
        subScene.ChildNodes.RemoveAt(0);
        parent.AddChildNode(node);
    }
}

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 Merge RVM

Other Supported App to Merge Formats

Using C#, One can also merge 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)

3DS (3D Studio Mesh File Format)

STL (Interchangeable 3D Surface Geometry)

U3D (Universal 3D)

VRML (Virtual Reality Modeling Language)

X (DirectX Model Image)

USD (Universal Scene Description)

USDZ (Universal Scene Description Zip Archive)