Our free and fast tool will convert most 3D mesh or ABC (Alembic) model files to a standard USD (Universal Scene Description) file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing. Our conversion tool can also batch convert multiple ABC files; up to 25 files at a time can be converted.
To convert your ABC file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a USD file and will be ready for download shortly afterwards. For more information about the ABC to USD conversion process, see the conversion information section below.
| Extension | ABC |
| Full Name | Alembic |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Binary |
| Tools | ABC Converters, 3D Model Voxelizer, Create ABC Animation, Text to ABC, ABC Viewer |
| Open With | Blender |
The ABC (Alembic) file format is a graphics format containing 3D content that was originally developed by Sony Pictures Imageworks and Industrial Light & Magic and released in 2011. The aim of the ABC format is to enable the efficient interchange of 3D assets between different working entities.
The format can contain a variety of 3D object formats, including polygon meshes, NURBS, parametric curves, and more. The files can be opened by many 3D graphics applications, including the popular open-source Blender application.
When converting from ABC files, our tool will convert all 3D geometry and color material information where possible.
| Extension | USD |
| Full Name | Universal Scene Description |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Binary |
| Tools | USD Converters, 3D Model Voxelizer, Create USD Animation, Text to USD, USD Viewer |
The USD format is a relatively new 3D file format developed by Pixar in 2016. The format is open source and has the support of major players in the space, such as Apple, Adobe, and more.
USD files encapsulate a full 3D scene along with any associated 3D models, animations, and visual effects into a single compact binary file. USD files can be opened with most popular 3D editing software, such as Blender.
Converting from the ABC file format to USD can be a complex process, and any tool used for this conversion process needs to be able to handle a variety of data conversion tasks as well as identify any defects within the 3D model and fix them. Here we will explain the conversion process used by our tool to accurately convert your ABC file to a valid USD 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, an ABC file is a binary data file containing 3D data such as vertices, faces, normals, and more. When combined, these make up the 3D model you see on your screen.
For more information regarding the ABC file format, please see this great article that goes into a lot of detail explaining the ABC format.
With the ABC file data read, our tool generates an internal representation of the full 3D model and will attempt to fix any geometry issues encountered. Along with repairing any issues with the 3D model, the tool will remove any duplicated vertices and prepare the model for exporting to the USD format.
With the conversion process entering its final stages, our tool now needs to take the in-memory 3D model we have created in step 2 and convert it to the USD format.
First click the "Upload..." button, select your ABC file to upload. Select any configuration options. When the ABC to USD conversion has completed, you can download your USD file straight away.
We aim to process all ABC to USD conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.
We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.
Yes, of course! We do not store the ABC file you submit to us. The resulting USD file, once created is deleted 15 minutes after upload and the download link will expire after this time.
No. All our conversion tools process your ABC file on our dedicated conversion servers, meaning you can use our tools on low-spec computers, laptops, tablets, and mobile devices and receive your converted USD file quickly.
Yes! Our ABC to USD tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.
Yes. Although you can use an Ad Blocker, if you like our ABC conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.
Yes. When you have converted your ABC to USD, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.
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