I was playing around with getting simple models from blender into soya3d. To get it to work right, I've made two changes to import_blender.py. The first change is on line 76 of the 0.2.1 distribution. I changed "if(face.col != None)" to "if(len(face.col) != 0)", which I may have already mentioned in another e-mail. Without this change it import_blender.py crashes. The other change was to the logic of whether look for tex_x and tex_y coords on line 84. I couldn't get materials to map (no tex_x or tex_y) until I did this change. After making this change I can create a simple shape in blender, then in blender press "f" to select faces, then "R" and select Rot UV, then "U" for UV calculation. At this point I can import_blender.py creates an output file that launches EditObj with an object that I can add materials to. The resulting world loads into soya3d with working textures. 
Here is the second change I made:
FROM:
# vertex texture coordinates
if(face.image):
uv = face.uv[index]
code = code + "v.tex_x = " + str(uv[0]) + "\nv.tex_y = " + str(1.0 - uv[1]) + "\n"
# vertexuvco[0]
# vertexuvco[1]
TO:
# vertex texture coordinates
if(len(face.uv) !=0):
uv = face.uv[index]
code = code + "v.tex_x = " + str(uv[0]) + "\nv.tex_y = " + str(1.0 - uv[1]) + "\n"
# vertexuvco[0]
# vertexuvco[1]
Complex models that I've downloaded and tried to run import_blender.py against still cause import_blender.py to loop, I haven't tried to figure out why (yet).
Hope this helps.
