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#!BPY
"""
Name: 'Nendo (.ndo)...'
Blender: 232
Group: 'Import'
Tooltip: 'Import Nendo Object File Format (.ndo)'
"""
__author__ = "Anthony D'Agostino (Scorpius)"
__url__ = ("blender", "elysiun",
"Author's homepage, http://www.redrival.com/scorpius")
__version__ = "Part of IOSuite 0.5"
__bpydoc__ = """\
This script imports Nendo files to Blender.
Nendo is (was) a commercial polygon modeler that has about half of the
features found in Wings. The .ndo file format is a simple, uncompressed,
memory dump of structures that represent the mesh objects, uv coords,
and image textures.
Usage:<br>
Execute this script from the "File->Import" menu and choose a Nendo file
to open.
Supported:<br>
Meshes only.
Missing:<br>
Materials, UV Coordinates, and Vertex Color info will be ignored.
Known issues:<br>
Triangulation of convex polygons works fine, and uses a very simple
fanning algorithm. Convex polygons (i.e., shaped like the letter "U")
require a different algorithm, and will be triagulated incorrectly.
Notes:<br>
Last tested with Wings 3D 0.98.25 & Nendo 1.1.6. Some models cannot be
imported due to the fact that Nendo erroneously creates doubled back
edges during the course of modeling.
"""
# $Id$
#
# +---------------------------------------------------------+
# | Copyright (c) 2001 Anthony D'Agostino |
# | http://www.redrival.com/scorpius |
# | scorpius@netzero.com |
# | September 25, 2001 |
# | Released under the Blender Artistic Licence (BAL) |
# | Import Export Suite v0.5 |
# +---------------------------------------------------------+
# | Read and write Nendo File Format (*.nendo) |
# +---------------------------------------------------------+
import Blender, meshtools
import struct, time, sys, os
# =============================
# === Read Nendo 1.x Format ===
# =============================
def read(filename):
start = time.clock()
file = open(filename, "rb")
version, numobjs = read_header(file)
for object in range(numobjs):
good, = struct.unpack(">B", file.read(1))
if not good: continue # an empty object
objname = read_object_flags(file)
edge_table = read_edge_table(file, version)
face_table = read_face_table(file)
vert_table = read_vert_table(file)
uv = read_uv(file)
verts = make_verts(vert_table)
faces = make_faces(edge_table)
meshtools.create_mesh(verts, faces, objname)
Blender.Window.DrawProgressBar(1.0, "Done") # clear progressbar
file.close()
end = time.clock()
seconds = " in %.2f %s" % (end-start, "seconds")
message = "Successfully imported " + os.path.basename(filename) + seconds
message += " (%s)" % version.title()
meshtools.print_boxed(message)
# =======================
# === Read The Header ===
# =======================
def read_header(file):
version, = struct.unpack(">9s", file.read(9))
misc, = struct.unpack(">H", file.read(2))
numobjs, = struct.unpack(">B", file.read(1))
if (version != "nendo 1.0") and (version != "nendo 1.1"):
meshtools.print_boxed(file.name, "is not a Nendo file")
return
return version, numobjs
# =========================
# === Read Object Flags ===
# =========================
def read_object_flags(file):
namelen, = struct.unpack(">H", file.read(2))
objname = file.read(namelen)
visible, = struct.unpack(">B", file.read(1))
sensity, = struct.unpack(">B", file.read(1))
other, = struct.unpack(">H", file.read(2)) # or 2 more flags?
misc = struct.unpack(">18f", file.read(72))
return objname
# =======================
# === Read Edge Table ===
# =======================
def read_edge_table(file, version):
numedges, = struct.unpack(">H", file.read(2))
edge_table = {}
for i in range(numedges):
if not i%100 and meshtools.show_progress:
Blender.Window.DrawProgressBar(float(i)/numedges, "Reading Edge Table")
edge = struct.unpack(">8H", file.read(16))
if version == "nendo 1.1":
hard, = struct.unpack(">B", file.read(1)) # edge hardness flag
color = struct.unpack(">8B", file.read(8))
edge_table[i] = edge
return edge_table
# =======================
# === Read Face Table ===
# =======================
def read_face_table(file):
numfaces, = struct.unpack(">H", file.read(2))
face_table = {}
for i in range(numfaces):
if not i%100 and meshtools.show_progress:
Blender.Window.DrawProgressBar(float(i)/numfaces, "Reading Face Table")
face_table[i] = struct.unpack(">H", file.read(2))[0]
return face_table
# =======================
# === Read Vert Table ===
# =======================
def read_vert_table(file):
numverts, = struct.unpack(">H", file.read(2))
vert_table = []
for i in range(numverts):
if not i%100 and meshtools.show_progress:
Blender.Window.DrawProgressBar(float(i)/numverts, "Reading Vertex Table")
w, x, y, z = struct.unpack(">H3f", file.read(14))
vert_table.append((w,(x, y, z)))
return vert_table
# ====================
# === Read Texture ===
# ====================
def read_uv(file):
numuvs, = struct.unpack(">H", file.read(2))
uvlist = struct.unpack(">"+`numuvs`+"H", file.read(numuvs*2))
numfacesT, = struct.unpack(">H", file.read(2))
facesT = struct.unpack(">"+`numfacesT`+"H", file.read(numfacesT*2))
textureflag, = struct.unpack(">B", file.read(1))
if textureflag:
xres, yres = struct.unpack(">2H", file.read(4))
print "%ix%i" % (xres, yres)
pixel = 0
while pixel < (xres*yres):
if not pixel%100 and meshtools.show_progress:
Blender.Window.DrawProgressBar(float(pixel)/xres*yres, "Reading Texture")
count, = struct.unpack(">B", file.read(1))
rgb = file.read(3)
pixel = pixel+count
return numuvs
# ==================
# === Make Verts ===
# ==================
def make_verts(vert_table):
matrix = [ # Rotate 90*x and Scale 0.1
[0.1, 0.0, 0.0, 0.0],
[0.0, 0.0, 0.1, 0.0],
[0.0,-0.1, 0.0, 0.0],
[0.0, 0.0, 0.0, 1.0]]
verts = []
for i in range(len(vert_table)):
vertex = vert_table[i][1]
vertex = meshtools.apply_transform(vertex, matrix)
verts.append(vertex)
return verts
# =======================
# === Make Face Table ===
# =======================
def make_face_table(edge_table): # For Nendo
face_table = {}
for i in range(len(edge_table)):
Lf = edge_table[i][2]
Rf = edge_table[i][3]
face_table[Lf] = i
face_table[Rf] = i
return face_table
# =======================
# === Make Vert Table ===
# =======================
def make_vert_table(edge_table): # For Nendo
vert_table = {}
for i in range(len(edge_table)):
Sv = edge_table[i][1]
Ev = edge_table[i][0]
vert_table[Sv] = i
vert_table[Ev] = i
return vert_table
# ==================
# === Make Faces ===
# ==================
def make_faces(edge_table): # For Nendo
face_table = make_face_table(edge_table)
faces=[]
#for i in range(len(face_table)):
for i in face_table.keys(): # avoids a whole class of errors
face_verts = []
current_edge = face_table[i]
while(1):
if i == edge_table[current_edge][3]:
next_edge = edge_table[current_edge][5] # Right successor edge
next_vert = edge_table[current_edge][1]
else:
next_edge = edge_table[current_edge][4] # Left successor edge
next_vert = edge_table[current_edge][0]
face_verts.append(next_vert)
current_edge = next_edge
if current_edge == face_table[i]: break
face_verts.reverse() # Flip all face normals
faces.append(face_verts)
return faces
def fs_callback(filename):
read(filename)
Blender.Window.FileSelector(fs_callback, "Import Nendo")
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