[Radiance-general] obj2rad splitting planar surfaces?

[Randolph M. Fritz]

Am I missing something?  It looks like obj2rad is splitting a planar 
rectangle into two triangles.

I think this OBJ file describes a single vertical rectangle:
-----------------------
# Rhino

mtllib one_plane.mtl
g IllumSrc__Center
o FirstIllum
usemtl Default
v 81.44685363769531 1 42
v 81.44685363769531 1 90
v 35.44684982299805 1 42
v 35.44684982299805 1 90
vt 0 0
vt 0 1
vt 1 0
vt 1 1
vn 0 1 0
vn 0 1 0
vn 0 1 0
vn 0 1 0
f 4/4/4 2/2/2 1/1/1 3/3/3
-----------------------

And this obj2rad file describes two triangles:
-----------------------
# obj2rad one_plane.obj
# Rhino

Default polygon FirstIllum.1
0
0
9
      35.446849823                  1                 90
     81.4468536377                  1                 90
     81.4468536377                  1                 42

Default polygon FirstIllum.1
0
0
9
     81.4468536377                  1                 42
      35.446849823                  1                 42
      35.446849823                  1                 90

# Done processing file: one_plane.obj
# 19 lines, 18 statements, 1 unrecognized
-----------------------


Meantime, I'd better come up with a script that produces the proper output.
-- 
Randolph M. Fritz