Wavefront MTL File Import

"The Material Template Library format (MTL) is a standard defined by Wavefront that complements the OBJ file format. It defines light reflecting properties of a 3D model according to the Phong shading model. It is characterized for being an ASCII file format. The format, however still widely used, is outdated and does not fully support later technologies like specular maps, parallax maps, etc. Although due to the open and intuitive nature of the format, these can easily be added with a custom MTL file generator."