What is MIME type "model/mtl"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

model/mtl is the MIME type for the Wavefront Material Template Library files. These files store material definitions used alongside 3D geometry. They describe surface properties like texture maps, colors, and shine.

The primary purpose is to tell 3D rendering programs how surfaces should look. Without them, 3D models might lack realistic details.

• Connects material properties with 3D models.
• Defines elements such as diffuse, ambient, and specular colors.
• Supports rendering in animation, game development, and visualization.

The files use the extension MTL, commonly paired with OBJ files that hold the 3D geometry. These types work together to create visually complex 3D scenes.

Additional details on MIME types are available at IANA Media Types.

Associated file extensions

.mtl

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:

    Content-Type: model/mtl
  

HTML

In HTML, you can specify the MIME type in various elements:

    <a href="file.dat" type="model/mtl">Download file</a>
  

Server-side (Node.js)

Setting the Content-Type header in Node.js:

    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'model/mtl');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.mtl