A3d description:  the new a3d looks like:

# Geometric primitives
#  polygon
P 0 0 0
v x1 y1 z1
v x2 y2 z2
...
E 0 0 0
#  polyline
L 0 0 0
v x1 y1 z1
v x2 y2 z2
...
E 0 0 0
#  point
p x y z

# State information
#  diffuse color  (r,g,b between 0. and 1.)
d r g b
#  specular color
s r g b
#  phong factor
g phong 0 0
#  normal  (should be normalized)
n vx vy vz
# The color state is permanent
#   (except the colors are reset to zero at End{Object,Frame,File})
# The normal should precede a (v)ertex or a (p)oint and applies only to
#  that vertex/point.  (lack of normal is equivalent to zero normal)

# Special commands (for advanced use)
#  EndObject: ends current object and selects a new object number
#  (works like seek(2): int_code=0 -> beg, int_code=1 -> relative, ...)
#  (ex.: 'o 1 1 0' select next object, 'o 0 3 0' select object 3)
o int_code int_disp 0
#  EndFrame (used by viewer to determine when to update screen)
f 0 0 0
#  EndFile (the remainder of the stream is no longer a3d input)
q 0 0 0
#  EditObject: clears an object (same format as EndObject)
O int_code int disp 0
# Geometric primitives are always appended to the current object.
# Use EndObject to select a different object, and EditObject to clear an
# object before replacing its definition.