I think that the Wings3D OBJ Exporter need of some
implementations for a greater compatibility with the
existing OBJ importers.
Please consider integrating "ke" flag also for the emission
property with rgb color parameters like "ka", "kd" etc.
In the EXPORT panel:
Triangulate: ON/OFF. The triangulation is very
important for a greater compatibility with many many 3D
software. The triangulation in the exporting session is a
useful non-destructive operation ;)
Write VN: ON/OFF. Vertex Normal writing option.
Write VT: ON/OFF. Vertex Texture writing option.
One Group: Absolute/Per Material/Per Object/None.
This is a list option instead of original "One Group per
material". With "Absolute" Wings write only one group up
to objects and materials. With "Per Material" Wings write
a group every material. With "Per Object" Wings write a
group every object. With "None" Wings don't write any
d/tr command. List option. With this option Wings
write the diffusion pigment command with "tr" instead
of "d" and vice-versa.
map_d/map_tr command. List option. With this option
Wings write the trasparency map command
with "map_tr" instead of "map_d" and vice-versa.
refl/map_refl command. List option. With this option
Wings write the reflection map command with "map_refl"
instead of "refl" and vice-versa.
Custom flags. Textbox. With this option Wings custom
commands down to first comments.
In the MATERIAL panel:
ILLUM Mode: 0/1/2/3/4. Write the rendering
map_ka: filename option for the ambient texture.
map_kd: filename option for the diffuse texture.
map_ks: filename option for the specular texture.
map_ke: filename option for the emission texture.
map_ns: filename option for the shininess texture.
map_d/map_tr: filename option for the opacity texture.
refl/map_refl: filename option for the reflection texture.