Importing from 3D file formats

At the beginning of this chapter, we listed a number of formats that are supported by Three.js. In this section, we'll quickly walk through a couple of examples for those formats.

For all these formats, an additional JavaScript file needs to be included. You can find all these files in the Three.js distribution in the examples/js/loaders directory.

The OBJ and MTL formats

OBJ and MTL are companion formats and often used together. The OBJ file defines the geometry, and the MTL file defines the materials that are used. Both OBJ and MTL are text-based formats. A part of an OBJ file looks as follow:

v -0.032442 0.010796 0.025935 
v -0.028519 0.013697 0.026201 
v -0.029086 0.014533...