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load options for 3d, compression, gis and pdl documentation
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‎net/developer-guide/advanced-usage/loading/load-options-for-different-document-types/load-3d-document-with-options.md‎

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---
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id: load-3d-document-with-options
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url: conversion/net/load-3d-document-with-options
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title: Load 3D document with options
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weight: 19
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description: "Learn how to load and convert 3D model documents (FBX, OBJ, GLTF, 3DS) with advanced options using GroupDocs.Conversion for .NET API."
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keywords: Load 3D document, Load and convert FBX, Load and convert OBJ, Load and convert GLTF, 3D model conversion
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productName: GroupDocs.Conversion for .NET
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hideChildren: False
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toc: True
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---
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[**GroupDocs.Conversion**](https://products.groupdocs.com/conversion/net) provides [ThreeDLoadOptions](https://reference.groupdocs.com/conversion/net/groupdocs.conversion.options.load/threedloadoptions) to control how source 3D model documents are processed. 3D documents include formats like FBX, OBJ, GLTF, 3DS, U3D, and other 3D modeling file formats.
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The following options are available:
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| Option | Description |
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|--------|-------------|
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|**[Format](https://reference.groupdocs.com/conversion/net/groupdocs.conversion.options.load/threedloadoptions/format)** | The document type is auto-detected during loading, but you can explicitly specify the source format. Available options include: *Fbx, ThreeDS, ThreeMF, Amf, Ase, Dae, Drc, Gltf, Obj, Ply, Rvm, U3d, Usd, Usdz, Vrml, X* |
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## Load FBX document
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The following code snippet shows how to load an FBX (Filmbox) document with explicit format specification:
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With v24.10 and later:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadContext, LoadOptions> getLoadOptions = loadContext => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Fbx
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};
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using (Converter converter = new Converter("character-model.fbx", getLoadOptions))
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{
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PdfConvertOptions options = new PdfConvertOptions();
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converter.Convert("character-model.pdf", options);
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}
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```
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Before v24.10:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadOptions> getLoadOptions = () => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Fbx
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};
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using (Converter converter = new Converter("character-model.fbx", getLoadOptions))
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{
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PdfConvertOptions options = new PdfConvertOptions();
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converter.Convert("character-model.pdf", options);
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}
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```
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## Load OBJ document
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The following code snippet shows how to load an OBJ (Wavefront) document:
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With v24.10 and later:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadContext, LoadOptions> getLoadOptions = loadContext => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Obj
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};
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using (Converter converter = new Converter("building-model.obj", getLoadOptions))
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{
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PdfConvertOptions options = new PdfConvertOptions();
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converter.Convert("building-model.pdf", options);
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}
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```
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Before v24.10:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadOptions> getLoadOptions = () => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Obj
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};
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using (Converter converter = new Converter("building-model.obj", getLoadOptions))
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{
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PdfConvertOptions options = new PdfConvertOptions();
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converter.Convert("building-model.pdf", options);
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}
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```
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## Convert FBX to OBJ
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The following code snippet shows how to load an FBX document and convert it to OBJ format:
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With v24.10 and later:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadContext, LoadOptions> getLoadOptions = loadContext => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Fbx
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};
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using (Converter converter = new Converter("animated-scene.fbx", getLoadOptions))
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{
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ThreeDConvertOptions options = new ThreeDConvertOptions
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{
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Format = ThreeDFileType.Obj
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};
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converter.Convert("animated-scene.obj", options);
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}
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```
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Before v24.10:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadOptions> getLoadOptions = () => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Fbx
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};
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using (Converter converter = new Converter("animated-scene.fbx", getLoadOptions))
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{
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ThreeDConvertOptions options = new ThreeDConvertOptions
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{
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Format = ThreeDFileType.Obj
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};
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converter.Convert("animated-scene.obj", options);
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}
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```
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## Convert OBJ to GLTF
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The following code snippet shows how to convert from OBJ to GLTF format:
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With v24.10 and later:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadContext, LoadOptions> getLoadOptions = loadContext => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Obj
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};
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using (Converter converter = new Converter("product-design.obj", getLoadOptions))
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{
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ThreeDConvertOptions options = new ThreeDConvertOptions
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{
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Format = ThreeDFileType.Gltf
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};
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converter.Convert("product-design.gltf", options);
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}
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```
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Before v24.10:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadOptions> getLoadOptions = () => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Obj
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};
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using (Converter converter = new Converter("product-design.obj", getLoadOptions))
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{
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ThreeDConvertOptions options = new ThreeDConvertOptions
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{
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Format = ThreeDFileType.Gltf
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};
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converter.Convert("product-design.gltf", options);
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}
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```
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## Convert FBX to U3D
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The following code snippet shows how to convert from FBX to U3D (Universal 3D) format:
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With v24.10 and later:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadContext, LoadOptions> getLoadOptions = loadContext => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Fbx
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};
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using (Converter converter = new Converter("game-asset.fbx", getLoadOptions))
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{
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ThreeDConvertOptions options = new ThreeDConvertOptions
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{
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Format = ThreeDFileType.U3d
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};
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converter.Convert("game-asset.u3d", options);
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}
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```
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Before v24.10:
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```csharp
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using GroupDocs.Conversion;
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using GroupDocs.Conversion.FileTypes;
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using GroupDocs.Conversion.Options.Convert;
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using GroupDocs.Conversion.Options.Load;
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Func<LoadOptions> getLoadOptions = () => new ThreeDLoadOptions
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{
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Format = ThreeDFileType.Fbx
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};
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using (Converter converter = new Converter("game-asset.fbx", getLoadOptions))
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{
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ThreeDConvertOptions options = new ThreeDConvertOptions
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{
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Format = ThreeDFileType.U3d
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};
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converter.Convert("game-asset.u3d", options);
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}
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```

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