The Complete PRC/U3D to USD Conversion Guide

This guide is part of the RapidPipeline 3D Formats Knowledge Database.It shows how to convert PRC/U3D to USD, if you'd like to know more about the formats, please check out the following links:

• Learn more about the PRC/U3D format
• Learn more about the USD format

There are various ways to convert between PRC/U3D and USD. With RapidPipeline, you can easily convert and and optimize PRC/U3D files, at scale. It supports USD, as well as many other file formats (examples: FBX, glTF, OBJ, PLY, STL, USDZ, VRM), at high quality.

Below you can see how to convert your files:

The PRC/U3D file is a format mostly used for 3D data embedding in documents and technical publishing.
The USD file is a format mostly used for 3D modeling and rendering applications, and exchange of 3D authoring data.

The following limitations should be taken into account when converting PRC/U3D files to USD format:

PRC/U3D Feature (not supported by USD)	Limitation Details
Geometry Compression	Geometry Compression Support: PRC/U3D: Full support | USD: No support Impact: Geometry compression describes the process of compressing the representations of a 3D model's geometry, usually a triangle mesh. 3D geometry compression does not change the topology of a 3D model, but just changes the way that a 3D model and its 3D positions and related vertex data is stored. Geometry compression can be lossy (just like JPEG compression in image processing can be lossy, for example), in which case one might notice slight artifacts like variations in 3D vertex positions (compared to the uncompressed 3D model). However, such differences are often not noticeable. There are only very few standards for geometry compression, like glTF's support of Draco compression and similar extensions.
Embedded Textures	Embedded Textures Support: PRC/U3D: Full support | USD: No support Impact: Embedded textures allow the storage and exchange of an entire 3D model and its materials within a single file, by embedding the texture images directly into the 3D file (and not storing them as separate image files). Without support for this feature, textures have to be stored in separate image files, and referenced from the main 3D model file.

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 PRC/U3D 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!

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