The Complete VRML to USDZ Conversion Guide
General Information
This guide is part of the RapidPipeline 3D Formats Knowledge Database.It shows how to convert VRML to USDZ, if you'd like to know more about the formats, please check out the following links:
Converting and Optimizing VRML Files to USDZ
There are various ways to convert between VRML and USDZ. With RapidPipeline, you can easily convert and and optimize VRML files, at scale. It supports USDZ, as well as many other file formats (examples: PLY, OBJ, VRM, FBX, glTF, STL, USD), at high quality.
Below you can find a video explaining how to convert your files:
What are VRML and USDZ files commonly used for?
The VRML file is a format mostly used for web-based 3D content and virtual reality.
The USDZ file is a format mostly used for interactive 3D, on the Web and elsewhere (e.g., in XR).
Create 3D digital twins for CGI & XR, faster than ever.
Turn your raw 3D or CAD into realistic digital twins.
Comparison of Features Supported by VRML and USDZ
| Feature | Supported by VRML | Supported by USDZ |
|---|---|---|
| PBR Materials | No | Yes |
| Transparent Materials | Yes | Yes |
| Vertex Colors | Yes | Yes |
| Materials | Yes | Yes |
| Embedded Textures | No | No |
| Normal Mapping | No | Yes |
| Procedural Textures | Partial0 | Yes |
| Texture Compression | No | No |
| Texture Transforms | Yes | Yes |
| Multiple UV Channels | Partial1 | Yes2 |
| Texturing | Yes | Yes |
| Hierarchical Scene Graph | Yes | Yes |
| Scene Composition | Yes | Yes |
| Scene Nodes | Yes | Yes |
| Quad Meshes | Yes3 | Yes |
| Free-Form Surfaces | Partial4 | Yes |
| Geometry Compression | Partial5 | No |
| Basic 3D Geometry | Yes | Yes |
| Standardized Format | Yes | Yes |
| Morph Targets | Partial6 | Yes |
| Skinned Animations | No | Yes |
| Rigid Animations | Yes | Yes |
| Animations | Yes | Yes |
Create 3D digital twins for CGI & XR, faster than ever.
Turn your raw 3D or CAD into realistic digital twins.
Limitations of VRML Files to USDZ Conversion Workflow
The following limitations should be taken into account when converting VRML files to USDZ format:
| VRML Feature (not supported by USDZ) | Limitation Details |
|---|---|
| Geometry Compression | Geometry Compression Support: VRML: Partial support | USDZ: No support   VRML Notes: VRML files can be compressed at the file level using gzip (.wrz extension). Geometry-level compression is not part of the VRML97 core standard, but prototype-based extensions exist — notably Taubin's GC node, a geometry compression scheme proposed specifically for VRML. 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. |
What's the best way to get VRML files into my 3D applications, and are there alternatives to using USDZ?
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 VRML and USDZ 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.
Create 3D digital twins for CGI & XR, faster than ever.
Turn your raw 3D or CAD into realistic digital twins.
Meet the Author
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