| Extension | X |
| Full Name | Direct X File |
| Type | 3D Model |
| Mime Type | text/plain |
| Format | Text |
The X file format is the legacy format used by the Microsoft Direct X suite of components and tools. Specifically, X files are used to store hierarchical 3D objects along with their associated material, texture, lighting, and animation data.
The 3D data is stored as plain text in the X file, allowing for manual editing within a simple text editor. 3D mesh surfaces are defined using a series of vertex coordinates and joined with lists of face indices. Along with these are optional normal and texture coordinates for textured surfaces; the textures themselves are often stored as external files using the DDS file format.
As mentioned previously, the X format is a legacy format and is no longer widely supported, with developers preferring to use modern formats such as FBX instead. That said, some 3D modeling applications still support importing and exporting to the X format.
X Converter Capabilities
When converting 3D model or mesh files using our X 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 X to OBJ, our tool will attempt to accurately convert any color or material information.
