The Complete STL to USD Conversion Guide

June 23, 2025
decorative-icon

General Information

This guide is part of the RapidPipeline 3D Formats Knowledge Database. It shows how to convert STL to USD, if you'd like to know more about the formats, please check out the following links:

decorative-icon

Converting and Optimizing STL Files to USD

There are various ways to convert between STL and USD. With RapidPipeline, you can easily convert and and optimize STL files, at scale. It supports USD, as well as many other file formats (examples: 3dsMax, FBX, glTF, OBJ, PLY, STEP, USDZ, VRM), at high quality.

Below you can find a video explaining how to convert your files:

decorative-icon

What are STL and USD files commonly used for?

The STL file is a format mostly used for 3D printing.
The USD file is a format mostly used for 3D modeling and rendering applications, and exchange of 3D authoring data.

a screenshot of the rapidpipeline UI

Best-in-Class 3D Processing. Try RapidPipeline, for Free.

No credit card needed.

Try for Free
decorative-icon

Comparison of Features Supported by STL and USD

FeatureSupported by STL Supported by USD
Morph TargetsNo Yes
Rigid AnimationsNo Yes
Skinned AnimationsNo Yes
AnimationsNo Yes
Free-Form SurfacesNo Yes
Geometry CompressionNo No
Quad MeshesNo Yes
Basic 3D GeometryYes Yes
PBR MaterialsNo Yes
Transparent MaterialsNo Yes
Vertex ColorsNo Yes
MaterialsNo Yes
Scene CompositionNo Yes
Hierarchical Scene GraphNo Yes
Scene NodesNo Yes
Standardized FormatYes Yes
Embedded TexturesNo No
Multiple UV ChannelsNo Yes
Normal MappingNo Yes
Procedural TexturesNo Yes
Texture CompressionNo No
Texture TransformsNo Yes
TexturingNo Yes

Best-in-Class 3D Processing. Try RapidPipeline, for Free.

No credit card needed.

Try for Free
decorative-icon

Limitations of STL Files to USD Conversion Workflow

The following limitations should be taken into account when converting STL files to USD format:

STL Feature (not supported by USD)Limitation Details
decorative-icon

What's the best way to get STL files into my 3D applications, and are there alternatives to using USD?

Doing 3D conversion right, especially at scale, can be tricky, as 3D data is in general a rather complex (yet very powerful!) medium. This also applies to STL and USD files - the conversion guide above provides a rough first idea about that. Once you know what you would like to do, tools like RapidPipeline can help you perform the necessary steps, and to even automate the process for thousands or even millions of files.

Especially when introducing pipelines and workflows at scale in an enterprise context, it is usually good to rely on dedicated tools and expertise, making sure you do not introduce any steps into your 3D workflow that are detrimental to the final output's quality, or that take your team too much time (and money).

If you're interested to hire dedicated expertise from the best in the field to help your company reach your goals fast and reliably, please do not hestitate to contact DGG. Being the creators of RapidPipeline, and ambassadors for open 3D standards for more than a decade, we have been building some of the world's most advanced 3D pipelines, having processed many millions of 3D assets.

Therefore, our expertise will help you to reach your goals faster, at scale, and with the least possible friction, since we are focused on maximum interoperability.

To get started with 3D data conversion and optimization today, sign up for a free account!

If you have any questions, feel free to chat with our human team.

Best-in-Class 3D Processing. Try RapidPipeline, for Free.

No credit card needed.

Try for Free

Meet the Author

author image

3D Knowledge Team

3D Technical Artists

RapidPipeline lets you convert, optimize and prepare your 3D models, easily.
Try it today, or meet our human 3D experts. The Best-in-Class Tools for Your 3D Processing Jobs