Convert STEP to U3D File

STEP to U3D ......

Provided below is a list of supplementary resources focusing on the interoperability and exchange between STEP and U3D files. Utilize these to streamline the STEP to U3D file conversion.


The STEP (STandardized Exchange of Product) file format is extensively used for the exchange of 3D data across various computer systems, including CAD, CAM, and CAE. As STEP geometry data is stored in a text-based format, exporting triangular meshes with thousands or even millions of faces using Autoconverter software may lead to larger file sizes. However, if your geometry defines a manifold solid, our software will strive to create an optimized faceted BREP representation, potentially reducing the STEP file size by up to one-third. It’s crucial to note that while the STEP file format supports colors per assembly, it lacks an alpha component. Consequently, any transparency settings will not be retained in the final STEP file.

U3D File U3D

The U3D (Universal 3D) file format is an open-source compressed format, initiated by the 3D Industry Forum. It’s designed to store three-dimensional triangular meshes along with additional properties such as color, transparency, or texture coordinates. This format plays a significant role in the general 3D graphics industry, particularly in conjunction with 3D PDF technology. It enables the generation of PDF documents containing interactive 3D data from U3D files. Both of our U3D file converters, Autoconverter and Automesher Application, are capable of reading and writing to and from the U3D file format. This is made possible thanks to the publicly available open-source IFX conversion library provided by Intel. To streamline the process of generating 3D PDF documents, our converters create a standard TEX script that can be easily utilized with free LaTeX software.