Wavefront OBJ toolbox

Read and Write Wavefront OBJ geometry and MTL files
Updated 9 Sep 2011

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Read and Write Wavefront OBJ geometry and MTL files.

A Wavefront Geometry Object file is supported by many 3D programs, it looks like:
v 0.000000 2.000000 0.000000
v 0.000000 0.000000 0.000000
v 2.000000 0.000000 0.000000
v 2.000000 2.000000 0.000000
% Vertices Coordinates 4
f 1 2 3 4
% Faces 1

The function read_wobj allow Wavefront object files including material MTL files to be read into a Matlab structure.
The function write_wobj exports a Matlab structure to an OBJ file.

It doesn't matter if the object file contains splines or polygon based geometry, it reads and writes almost all .obj files.

See "help read_wobj" and "help write_wobj"

Comments and bug reports are welcome

Cite As

Dirk-Jan Kroon (2024). Wavefront OBJ toolbox (https://www.mathworks.com/matlabcentral/fileexchange/27982-wavefront-obj-toolbox), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes

Bug fixes,
- Filename '.mtl' with space now supported
- Blender uses face objects in case of a line

Fixed Nan Bug (Detected by Owens M.A.)

Add file-format help and made the code compatible with all most all possible .obj files.