| Extension | USD |
| Full Name | Universal Scene Description |
| Type | 3D Model |
| Mime Type | application/octet-stream |
| Format | Binary |
USD files are a 3D model format designed specifically for the exchange of 3D data between different systems within a standard and easy-to-implement format.
Within a USD file are the various data elements that make up the 3D model, including vertices, faces, normals, and texture coordinates. Along with this basic geometry, other important information is stored, such as camera and other environmental properties.
Support for exporting 3D content to the USD format can be found in certain 3D modeling applications, such as Blender, Maya, and Houdini.
USD Converter Capabilities
When converting 3D model or mesh files using our USD converter, we will attempt to convert color materials into a suitable format for use in the converted file.
The OBJ file format is a 3D graphics file format used to define complex 3D models, including geometry, materials, and textures. OBJ files are text files, making them human-readable and easy to modify by hand. The downside to this ease of readability is that the files can become rather large when dealing with large or complex 3D models.
As mentioned, the OBJ format stores not only 3D model geometry but also materials and textures. These materials are usually defined in a separate file with the MTL file extension and specify geometry rendering details such as diffuse and specular color, transparency, and much more.
The OBJ material file can also reference external texture files. These are usually JPEG or PNG files; however, these can be older formats, such as TGA. Where materials are used, the OBJ file will also contain material names preceding the geometry faces they should be applied to. If textures are referenced, the geometry will also contain texture coordinates (UV) for each vertex.
OBJ Converter Capabilities
When converting your USD to OBJ, our tool will attempt to accurately convert any color or material information.
