The Wavefront OBJ format is a universal standard for 3D modeling, recognized by almost every modern design application. However, for classic game engines—most notably the RenderWare engine powering legendary titles like Grand Theft Auto: San Andreas , Vice City , and GTA III —the standard is the DFF format.
Rename all materials to short, alphanumeric strings (e.g., car_door , glass ). Avoid spaces or special characters.