Our free and fast tool will convert your 3D USD (Universal Scene Description) model files to a standard ABC (Alembic) file that can then be edited further in most popular 3D editing packages or 3D printed without any further processing. Our conversion tool can also batch convert multiple USD files; up to 200 files at a time can be converted.
To convert your USD file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a ABC file and will be ready for download shortly afterwards. For more information about the USD to ABC conversion process, see the conversion information section below.
| 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 |
| Open With | Blender |
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.
| 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.
Converting from the USD file format to ABC 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 USD file to a valid ABC 3D model. Let's start with the conversion process, which involves the following steps:
In its simplest form, an USD 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 USD file format, please see this great article that goes into a lot of detail explaining the USD format.
With the USD 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 ABC 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 ABC format.
Yes! Our USD tool supports full batch conversions. You can upload up to 200 USD files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the ABC files individually or download them all in a single ZIP file.
First click the "Upload..." button, and select your USD file to upload. You can also drag and drop your file onto the tool. Once your file is selected, you can set any configuration options. When the USD to ABC conversion has completed, you can download your ABC file straight away.
We aim to process all USD to ABC 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 USD file you submit to us. The resulting ABC file, once created, is stored for 4 hours after upload; after this time it is deleted, and the short-term download link will stop working. You can create a long-term download Url with most tools that will ensure the file is retained for 24 hours, allowing you to download the file when convenient. Our tools also come with a Delete button, allowing you to delete the file immediately.
No. All our conversion tools process your USD 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 ABC file quickly.
Yes! Our USD to ABC 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 USD conversion tool please consider white-listing our website. When an Ad Blocker is enabled there are some conversion limits and some settings may not be available when using our tools. Processing/conversion and download times will also be longer.
Yes. When you have converted your USD to ABC, 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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