Loader.loadOBJ OutOfBounds Exception.

[Socke]

If i start Blender end export the cube (Blender create one on start) and load this with

Code Select Expand

Object3D[] tests = Loader.loadOBJ("models/course1.obj", "models/course1.mtl", 0.2f);

it works fine.

If i add a second cube and exports this and load this i become:

Code Select Expand

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(Unknown Source)
at com.threed.jpct.Loader.loadOBJ(Unknown Source)
at com.threed.jpct.Loader.loadOBJ(Unknown Source)


http://84.201.4.116/downloads/models.rar

[KittenKoder]

I don't believe Blender formats the mtl file in a way that jPCT likes, I found that error as well when I tried loading the mtl file but without the mtl file everything loads fine.

[Socke]

I tried with second parameter null. No difference.

[EgonOlsen]

I'll have a look at the models tomorrow....boy, do i hate the obj format. It's a piece of junk that every exporter writes as he wishes.

[Socke]

Does obj support animations? I just wanted to test this. Blender can not export into md2 and 3ds does not support animations.

[KittenKoder]

Does obj support animations? I just wanted to test this. Blender can not export into md2 and 3ds does not support animations.

Not directly, however, I can give you a script to export to rough md2, it doesn't optimize the model at all, from Blender:

Code Select Expand


# Dao Nguyen and Bernd Meyer, metaio GmbH

# ***** BEGIN GPL LICENSE BLOCK *****

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

# ***** END GPL LICENCE BLOCK *****

"""
Name: 'MD2 -new- (.md2)...'
Blender: 245
Group: 'Export'
Tooltip: 'Export to Quake2 file format (.md2) -new-'
"""

__version__ = '0.1'
__author__  = [ 'Damien Thebault', 'Erwan Mathieu' ]
__url__     = [ 'https://metabolsim.no-ip.org/trac/metabolsim' ]
__email__   = [ 'Damien Thebault <damien!thebault#laposte!net>', 'Erwan Mathieu <cyberwan#laposte!net>' ]

__bpydoc__ = """\
This script exports a mesh object to the Quake2 "MD2" file format.

If you want to choose the name of the animations, you have to go to the timeline, choose the starting frame, choose 'Frame', 'Add Marker' (M) and then set a name with 'Frame', 'Name Marker' (Ctrl M).

The frames are named <frameName><N> with :<br>
- <N> the frame number<br>
- <frameName> the name choosen at the last marker (or 'frame' if the last marker has no name or if there is no last marker)

Skins are set using image textures in materials. If a skin path is too long (>63 chars), the basename will be used.

Usually, importers expect that the name don't have any digit (to be able to detect where the frame name starts and where the frame number starts.

Thanks to Bob Holcomb for MD2_NORMALS taken from his exporter.<br>
Thanks to David Henry for the documentation about the MD2 file format.
"""

#New Header Data
bl_info = {
    "name": "Quake2 MD2 format",
    "description": "Export to Quake2 file format (.md2)",
    "author": "Dao Nguyen and Bernd Meyer, metaio GmbH (based on the initial exporter of Damien Thebault and Erwan Mathieu)",
    "version": (1, 0),
    "blender": (2, 5, 8),
    "api": 31236,
    "location": "File > Export > md2",
    "warning": '', # used for warning icon and text in addons panel
    "wiki_url": "http://metaio.com",
    "tracker_url": "http://metaio.com",
    "support": 'OFFICIAL',
    "category": "Import-Export"}


import bpy
from bpy.props import *

from bpy_extras.io_utils import ExportHelper
from datetime import datetime

import math
from math import pi
import mathutils

import struct
import random
import os


MD2_NORMALS=((-0.525731, 0.000000, 0.850651),
             (-0.442863, 0.238856, 0.864188),
             (-0.295242, 0.000000, 0.955423),
             (-0.309017, 0.500000, 0.809017),
             (-0.162460, 0.262866, 0.951056),
             ( 0.000000, 0.000000, 1.000000),
             ( 0.000000, 0.850651, 0.525731),
             (-0.147621, 0.716567, 0.681718),
             ( 0.147621, 0.716567, 0.681718),
             ( 0.000000, 0.525731, 0.850651),
             ( 0.309017, 0.500000, 0.809017),
             ( 0.525731, 0.000000, 0.850651),
             ( 0.295242, 0.000000, 0.955423),
             ( 0.442863, 0.238856, 0.864188),
             ( 0.162460, 0.262866, 0.951056),
             (-0.681718, 0.147621, 0.716567),
             (-0.809017, 0.309017, 0.500000),
             (-0.587785, 0.425325, 0.688191),
             (-0.850651, 0.525731, 0.000000),
             (-0.864188, 0.442863, 0.238856),
             (-0.716567, 0.681718, 0.147621),
             (-0.688191, 0.587785, 0.425325),
             (-0.500000, 0.809017, 0.309017),
             (-0.238856, 0.864188, 0.442863),
             (-0.425325, 0.688191, 0.587785),
             (-0.716567, 0.681718,-0.147621),
             (-0.500000, 0.809017,-0.309017),
             (-0.525731, 0.850651, 0.000000),
             ( 0.000000, 0.850651,-0.525731),
             (-0.238856, 0.864188,-0.442863),
             ( 0.000000, 0.955423,-0.295242),
             (-0.262866, 0.951056,-0.162460),
             ( 0.000000, 1.000000, 0.000000),
             ( 0.000000, 0.955423, 0.295242),
             (-0.262866, 0.951056, 0.162460),
             ( 0.238856, 0.864188, 0.442863),
             ( 0.262866, 0.951056, 0.162460),
             ( 0.500000, 0.809017, 0.309017),
             ( 0.238856, 0.864188,-0.442863),
             ( 0.262866, 0.951056,-0.162460),
             ( 0.500000, 0.809017,-0.309017),
             ( 0.850651, 0.525731, 0.000000),
             ( 0.716567, 0.681718, 0.147621),
             ( 0.716567, 0.681718,-0.147621),
             ( 0.525731, 0.850651, 0.000000),
             ( 0.425325, 0.688191, 0.587785),
             ( 0.864188, 0.442863, 0.238856),
             ( 0.688191, 0.587785, 0.425325),
             ( 0.809017, 0.309017, 0.500000),
             ( 0.681718, 0.147621, 0.716567),
             ( 0.587785, 0.425325, 0.688191),
             ( 0.955423, 0.295242, 0.000000),
             ( 1.000000, 0.000000, 0.000000),
             ( 0.951056, 0.162460, 0.262866),
             ( 0.850651,-0.525731, 0.000000),
             ( 0.955423,-0.295242, 0.000000),
             ( 0.864188,-0.442863, 0.238856),
             ( 0.951056,-0.162460, 0.262866),
             ( 0.809017,-0.309017, 0.500000),
             ( 0.681718,-0.147621, 0.716567),
             ( 0.850651, 0.000000, 0.525731),
             ( 0.864188, 0.442863,-0.238856),
             ( 0.809017, 0.309017,-0.500000),
             ( 0.951056, 0.162460,-0.262866),
             ( 0.525731, 0.000000,-0.850651),
             ( 0.681718, 0.147621,-0.716567),
             ( 0.681718,-0.147621,-0.716567),
             ( 0.850651, 0.000000,-0.525731),
             ( 0.809017,-0.309017,-0.500000),
             ( 0.864188,-0.442863,-0.238856),
             ( 0.951056,-0.162460,-0.262866),
             ( 0.147621, 0.716567,-0.681718),
             ( 0.309017, 0.500000,-0.809017),
             ( 0.425325, 0.688191,-0.587785),
             ( 0.442863, 0.238856,-0.864188),
             ( 0.587785, 0.425325,-0.688191),
             ( 0.688191, 0.587785,-0.425325),
             (-0.147621, 0.716567,-0.681718),
             (-0.309017, 0.500000,-0.809017),
             ( 0.000000, 0.525731,-0.850651),
             (-0.525731, 0.000000,-0.850651),
             (-0.442863, 0.238856,-0.864188),
             (-0.295242, 0.000000,-0.955423),
             (-0.162460, 0.262866,-0.951056),
             ( 0.000000, 0.000000,-1.000000),
             ( 0.295242, 0.000000,-0.955423),
             ( 0.162460, 0.262866,-0.951056),
             (-0.442863,-0.238856,-0.864188),
             (-0.309017,-0.500000,-0.809017),
             (-0.162460,-0.262866,-0.951056),
             ( 0.000000,-0.850651,-0.525731),
             (-0.147621,-0.716567,-0.681718),
             ( 0.147621,-0.716567,-0.681718),
             ( 0.000000,-0.525731,-0.850651),
             ( 0.309017,-0.500000,-0.809017),
             ( 0.442863,-0.238856,-0.864188),
             ( 0.162460,-0.262866,-0.951056),
             ( 0.238856,-0.864188,-0.442863),
             ( 0.500000,-0.809017,-0.309017),
             ( 0.425325,-0.688191,-0.587785),
             ( 0.716567,-0.681718,-0.147621),
             ( 0.688191,-0.587785,-0.425325),
             ( 0.587785,-0.425325,-0.688191),
             ( 0.000000,-0.955423,-0.295242),
             ( 0.000000,-1.000000, 0.000000),
             ( 0.262866,-0.951056,-0.162460),
             ( 0.000000,-0.850651, 0.525731),
             ( 0.000000,-0.955423, 0.295242),
             ( 0.238856,-0.864188, 0.442863),
             ( 0.262866,-0.951056, 0.162460),
             ( 0.500000,-0.809017, 0.309017),
             ( 0.716567,-0.681718, 0.147621),
             ( 0.525731,-0.850651, 0.000000),
             (-0.238856,-0.864188,-0.442863),
             (-0.500000,-0.809017,-0.309017),
             (-0.262866,-0.951056,-0.162460),
             (-0.850651,-0.525731, 0.000000),
             (-0.716567,-0.681718,-0.147621),
             (-0.716567,-0.681718, 0.147621),
             (-0.525731,-0.850651, 0.000000),
             (-0.500000,-0.809017, 0.309017),
             (-0.238856,-0.864188, 0.442863),
             (-0.262866,-0.951056, 0.162460),
             (-0.864188,-0.442863, 0.238856),
             (-0.809017,-0.309017, 0.500000),
             (-0.688191,-0.587785, 0.425325),
             (-0.681718,-0.147621, 0.716567),
             (-0.442863,-0.238856, 0.864188),
             (-0.587785,-0.425325, 0.688191),
             (-0.309017,-0.500000, 0.809017),
             (-0.147621,-0.716567, 0.681718),
             (-0.425325,-0.688191, 0.587785),
             (-0.162460,-0.262866, 0.951056),
             ( 0.442863,-0.238856, 0.864188),
             ( 0.162460,-0.262866, 0.951056),
             ( 0.309017,-0.500000, 0.809017),
             ( 0.147621,-0.716567, 0.681718),
             ( 0.000000,-0.525731, 0.850651),
             ( 0.425325,-0.688191, 0.587785),
             ( 0.587785,-0.425325, 0.688191),
             ( 0.688191,-0.587785, 0.425325),
             (-0.955423, 0.295242, 0.000000),
             (-0.951056, 0.162460, 0.262866),
             (-1.000000, 0.000000, 0.000000),
             (-0.850651, 0.000000, 0.525731),
             (-0.955423,-0.295242, 0.000000),
             (-0.951056,-0.162460, 0.262866),
             (-0.864188, 0.442863,-0.238856),
             (-0.951056, 0.162460,-0.262866),
             (-0.809017, 0.309017,-0.500000),
             (-0.864188,-0.442863,-0.238856),
             (-0.951056,-0.162460,-0.262866),
             (-0.809017,-0.309017,-0.500000),
             (-0.681718, 0.147621,-0.716567),
             (-0.681718,-0.147621,-0.716567),
             (-0.850651, 0.000000,-0.525731),
             (-0.688191, 0.587785,-0.425325),
             (-0.587785, 0.425325,-0.688191),
             (-0.425325, 0.688191,-0.587785),
             (-0.425325,-0.688191,-0.587785),
             (-0.587785,-0.425325,-0.688191),
             (-0.688191,-0.587785,-0.425325))


class MD2:
def __init__(self, anim, basename):
self.anim = anim
self.basename = basename
self.object = None
self.progressBarDisplayed = -10
return

def setObject(self, object):
self.object = object

def write(self, filename):
self.ident = 'IDP2'
self.version = 8

self.skinwidth = 2**10-1 #1023
self.skinheight = 2**10-1 #1023

# self.framesize : see below

mesh = self.object.data

skins = Util.getSkins(mesh)

self.num_skins = len(skins)
self.num_xyz = len(mesh.vertices)
self.num_st = len(mesh.polygons)*3
self.num_tris = len(mesh.polygons)
self.num_glcmds = self.num_tris * (1+3*3) + 1
if self.anim:
self.num_frames = 1 + bpy.context.scene.frame_end - bpy.context.scene.frame_start

else:
self.num_frames = 1

self.framesize = 40+4*self.num_xyz

self.ofs_skins = 68 # size of the header
self.ofs_st = self.ofs_skins + 64*self.num_skins
self.ofs_tris = self.ofs_st + 4*self.num_st
self.ofs_frames = self.ofs_tris + 12*self.num_tris
self.ofs_glcmds = self.ofs_frames + self.framesize*self.num_frames
self.ofs_end = self.ofs_glcmds + 4*self.num_glcmds

file = open(filename, 'wb')
try:
# write header
bin = struct.pack('<4B16i', #bin = struct.pack('<4s16i',
                  ord('I'), #self.ident,
                  ord('D'),
                  ord('P'),
                  ord('2'),
                  self.version,
                  self.skinwidth,
                  self.skinheight,
                  self.framesize,
                  self.num_skins,
                  self.num_xyz,
                  self.num_st, #  number of texture coordinates
                  self.num_tris,
                  self.num_glcmds,
                  self.num_frames,
                  self.ofs_skins,
                  self.ofs_st,
                  self.ofs_tris,
                  self.ofs_frames,
                  self.ofs_glcmds,
                  self.ofs_end)
file.write(bin)

# write skin file names
for skin in skins:
if len(skin) > 63 and self.basename == False:
print("WARNING: The texture path '"+skin+"' is too long. It is automatically truncated to the file basename.")

if len(skin) > 63 or self.basename:
skin = os.path.basename(skin)

bin = struct.pack('<64s', bytes(skin[0:63], encoding='utf8'))
file.write(bin) # skin name


#define meshTextureFaces
if len(mesh.uv_textures) != 0:
#meshTextureFaces = mesh.uv_textures[0].data
meshTextureFaces = self.object.to_mesh(bpy.context.scene, True, 'PREVIEW').tessface_uv_textures.active
else:
meshTextureFaces = mesh.polygons

#for meshTextureFace in meshTextureFaces: # for face in mesh.polygons:
for meshTextureFace in meshTextureFaces.data:
try:
#uvs = meshTextureFace.uv
uvs = (meshTextureFace.uv1, meshTextureFace.uv2, meshTextureFace.uv3)
except:
uvs = ([0,0],[0,0],[0,0])

# (u,v) in blender -> (u,1-v)
bin = struct.pack('<6h',
  int(uvs[0][0]*self.skinwidth),
  int((1-uvs[0][1])*self.skinheight),
  int(uvs[1][0]*self.skinwidth),
  int((1-uvs[1][1])*self.skinheight),
  int(uvs[2][0]*self.skinwidth),
  int((1-uvs[2][1])*self.skinheight),
  )
file.write(bin) # uv
# (uv index is : face.index*3+i)

for face in mesh.polygons:
# 0,2,1 for good cw/ccw
bin = struct.pack('<3h',
                  face.vertices[0],
                  face.vertices[2],
                  face.vertices[1]
                )
file.write(bin) # vert index
bin = struct.pack('<3h',
                  face.index*3 + 0,
                  face.index*3 + 2,
                  face.index*3 + 1,
                  )

file.write(bin) # uv index

if self.anim:
min = None
max = None

timeLineMarkers =[]
for marker in bpy.context.scene.timeline_markers:
timeLineMarkers.append(marker)

# sort the markers. The marker with the frame number closest to 0 will be the first marker in the list.
# The marker with the biggest frame number will be the last marker in the list
timeLineMarkers.sort(key=lambda marker: marker.frame)
markerIdx = 0

# delete markers at same frame positions
if len(timeLineMarkers) > 1:
markerFrame = timeLineMarkers[len(timeLineMarkers)-1].frame
for i in range(len(timeLineMarkers)-2, -1, -1):
if timeLineMarkers[i].frame == markerFrame:
del timeLineMarkers[i]
else:
markerFrame = timeLineMarkers[i].frame

for frame in range(1, self.num_frames+1):
percent = (frame - bpy.context.scene.frame_start) / ( 1. + self.num_frames)

#Display the progress status of the exportation in the console
#problem: "Carriage return" doesn't function properly with python 3.x
progressStatus = math.floor((frame)/(self.num_frames+1)*100)
progressStatusString = ("Exportation progress: "+str((progressStatus//10)*10)+"%")
if progressStatus - self.progressBarDisplayed >= 10:
print(progressStatusString)
self.progressBarDisplayed = (progressStatus//10)*10
if frame == self.num_frames:
print("Exportation progress: 100% - model exported")
# --Blender.Window.DrawProgressBar(percent,
# str(int(percent*100)) + '%' + \
# ' : frame ' + str(frame))

bpy.context.scene.frame_set(frame)
(min, max) = self.findMinMax()

if len(timeLineMarkers) != 0:
if markerIdx + 1 != len(timeLineMarkers):
if frame >= timeLineMarkers[markerIdx + 1].frame:
markerIdx += 1
name = timeLineMarkers[markerIdx].name
else:
name = 'frame'

self.outFrame(file, min, max, name + str(frame))
else:
(min, max) = self.findMinMax()
self.outFrame(file, min, max)

# gl commands
#for meshTextureFace in meshTextureFaces: # for face in mesh.polygons:
for meshTextureFace in meshTextureFaces.data:
try:
uvs = (meshTextureFace.uv1, meshTextureFace.uv2, meshTextureFace.uv3)
#uvs = meshTextureFace.uv
except:
uvs = ([0,0],[0,0],[0,0])
bin = struct.pack('<i', 3)
file.write(bin)
# 0,2,1 for good cw/ccw (also flips/inverts normal)
for vert in [0,2,1]:
# (u,v) in blender -> (u,1-v)
bin = struct.pack('<ffI',
uvs[vert][0],
(1.0 - uvs[vert][1]),
face.vertices[vert])

file.write(bin)
# NULL command
bin = struct.pack('<I', 0)
file.write(bin)
finally:
file.close()

def findMinMax(self, min=None, max=None):
# mesh = Blender.Mesh.New()
# mesh.getFromObject(self.object.name)
# mesh = self.object.create_mesh(bpy.context.scene ,True, self.object.name)
mesh = self.object.to_mesh(bpy.context.scene, True, 'PREVIEW')

mesh.transform(self.object.matrix_world)
mesh.transform(mathutils.Matrix.Rotation(pi/2, 4, 'Z')) # Hoehrer: rotate 90 degrees

if min == None:
min = [mesh.vertices[0].co[0],
       mesh.vertices[0].co[1],
       mesh.vertices[0].co[2]]
if max == None:
max = [mesh.vertices[0].co[0],
       mesh.vertices[0].co[1],
       mesh.vertices[0].co[2]]

for vert in mesh.vertices:
for i in range(3):
if vert.co[i] < min[i]:
min[i] = vert.co[i]
if vert.co[i] > max[i]:
max[i] = vert.co[i]

return (min, max)

def outFrame(self, file, min, max, frameName = 'frame'):
mesh = self.object.to_mesh(bpy.context.scene, True, 'PREVIEW')

mesh.transform(self.object.matrix_world)
mesh.transform(mathutils.Matrix.Rotation(pi/2, 4, 'Z')) # Hoehrer: rotate 90 degrees

bin = struct.pack('<6f16s', #bin = struct.pack('<6f16s',
self.object.scale[0]*(max[0]-min[0])/255., #self.object.getSize()[0]*(max[0]-min[0])/255.
self.object.scale[1]*(max[1]-min[1])/255.,
self.object.scale[2]*(max[2]-min[2])/255.,
min[0],
min[1],
min[2],
bytes(frameName, encoding='utf8'))

file.write(bin) # frame header
for vert in mesh.vertices:
for i in range(162):
dot =  vert.normal[1]*MD2_NORMALS[i][0] + \
      -vert.normal[0]*MD2_NORMALS[i][1] + \
       vert.normal[2]*MD2_NORMALS[i][2]
if (i==0) or (dot > maxDot):
maxDot = dot
bestNormalIndex = i

bin = struct.pack('<4B',
                  int((vert.co[0]-min[0])/(max[0]-min[0])*255.),
                  int((vert.co[1]-min[1])/(max[1]-min[1])*255.),
                  int((vert.co[2]-min[2])/(max[2]-min[2])*255.),
                  bestNormalIndex)

file.write(bin) # vertex

class Util:
@staticmethod
def pickName():
name = '_MD2Obj_'+str(random.random())
return name[0:20]

# deletes an object from Blender (remove + unlink)
@staticmethod
def deleteObject(object):
bpy.context.scene.objects.unlink(object)
bpy.data.objects.remove(object)

# duplicates the given object and returns it
@staticmethod
def duplicateObject(object, name):
# backup the current object selection and current active object
selObjects = bpy.context.selected_objects[:]
actObject = bpy.context.active_object

# deselect all selected objects
bpy.ops.object.select_all(action='DESELECT')
# select the object which we want to duplicate
object.select = True

# duplicate the selected object
bpy.ops.object.duplicate()

# the duplicated object is automatically selected
copyObj = bpy.context.selected_objects[0]

# rename the object with the given name
copyObj.name = name

# select all objects which have been previously selected and make active the previous active object
bpy.context.scene.objects.active = actObject
for obj in selObjects:
obj.select = True

return copyObj

# returns the mesh of the object and return object.data (mesh)
@staticmethod
def triangulateMesh(object):
mesh = object.data

# make the object the active object!
# object.select = True
bpy.context.scene.objects.active = object

bpy.ops.object.mode_set( mode="EDIT" , toggle = False )
bpy.ops.mesh.select_all(action="SELECT")

#for face in mesh.polygons:
#face.select = True

# mesh.quadToTriangle()
# bpy.ops.object.mode_set( mode="OBJECT" , toggle = False )

bpy.ops.mesh.quads_convert_to_tris()
bpy.ops.object.mode_set( mode="OBJECT" , toggle = False )
return mesh

@staticmethod
def getSkins(mesh):
skins = []
for material in mesh.materials:
for texSlot in material.texture_slots:
if texSlot != None:
if texSlot.texture.type == "IMAGE": # if texture.tex.getType() == "Image":
# get the image path and convert it to a relative one (if it is not already a relative path)
imgfile = bpy.path.relpath(texSlot.texture.image.filepath)[2:]
skins.append(imgfile)
return skins


class ObjectInfo:
def __init__(self, object):
self.triang = False
self.vertices = -1
self.faces = -1
self.status = ('','')

self.ismesh = object and object.type == 'MESH'

if self.ismesh:
originalObject = object
mesh = object.data

self.skins = Util.getSkins(mesh)

for face in mesh.polygons:
if len(face.vertices) == 4:
self.triang = True
break

tmpObjectName = Util.pickName()
try:
if self.triang:
object = Util.duplicateObject(object, tmpObjectName)
mesh = Util.triangulateMesh(object)

self.status = (str(len(mesh.vertices)) + ' vertices', str(len(mesh.polygons)) + ' faces')

finally:
if object.name == tmpObjectName:
originalObject.select = True
bpy.context.scene.objects.active = originalObject
# bpy.context.scene.objects.unlink(object)
Util.deleteObject(object)

class Export_MD2(bpy.types.Operator, ExportHelper):
"""Export to Quake2 file format (.md2)"""
bl_idname = "export_quake.md2"
bl_label = "Export to Quake2 file format (.md2)"

filename = StringProperty(name="File Path",
description="Filepath used for processing the script",
maxlen= 1024,default= "")

filename_ext = ".md2"

val_anim = BoolProperty(name="Export animation",
description="default: True",
default=True)

val_basename = BoolProperty(name="Export only basenames (skin)",
description="default: True",
default=True)

# id_export   = 1
# id_cancel   = 2
# id_anim     = 3
# id_update   = 4
# id_help     = 5
# id_basename = 6

def __init__(self):
try:
self.object = bpy.context.selected_objects[0]
except:
self.object = None

# go into object mode before we start the actual export procedure
bpy.ops.object.mode_set( mode="OBJECT" , toggle = False )

self.info = ObjectInfo(self.object)

def execute(self, context):

# if Blender.sys.exists(filename) == 1: #if Blender.sys.exists(filename) == 1:
    # overwrite = Blender.Draw.PupMenu('File already exists, overwrite?%t|Yes%x1|No%x0') #overwrite = Blender.Draw.PupMenu('File already exists, overwrite?%t|Yes%x1|No%x0')
    # if overwrite == 0:
    # return

props = self.properties
filepath = self.filepath
filepath = bpy.path.ensure_ext(filepath, self.filename_ext)

if len(bpy.context.selected_objects[:]) == 0:
raise NameError('Please, select one object!')

if len(bpy.context.selected_objects[:]) > 1:
#self.report({'ERROR'}, "Please, select one and only one object!")
raise NameError('Please, select one and only one object!')


object = self.object
originalObject = object

if object.type != 'MESH':
raise NameError('Selected object must be a mesh!')

# different name each time or we can't unlink it later
tmpObjectName = Util.pickName()
mesh = object.data

'''
print(str(object)+" "+str(mesh)+" "+str(originalObject))
object = Util.duplicateObject(object, tmpObjectName)
print(str(object))
mesh = Util.triangulateMesh(object)
print(str(mesh))

if object.name == tmpObjectName:
originalObject.select = True
print("unlinkt tmpObject")
# bpy.data.objects.remove(object)
'''

if self.info.triang:
object = Util.duplicateObject(object, tmpObjectName)
mesh = Util.triangulateMesh(object)

if self.val_anim:
frame =bpy.context.scene.frame_current

try:
md2 = MD2(self.val_anim, self.val_basename)
md2.setObject(object)
md2.write(filepath) #md2.write(filename)
finally:
if object.name == tmpObjectName:
originalObject.select = True
bpy.context.scene.objects.active = originalObject
Util.deleteObject(object);
if self.val_anim:
bpy.context.scene.frame_set(frame)

# Blender.Window.DrawProgressBar(1.0, '')
# Blender.Window.WaitCursor(False)
# Blender.Draw.Exit()
self.report({'INFO'},  "Model '"+originalObject.name+"' exported")
return {'FINISHED'}

def invoke(self, context, event):
wm = context.window_manager
wm.fileselect_add(self)
return {'RUNNING_MODAL'}


def menuCB(self, context):
self.layout.operator(Export_MD2.bl_idname, text="Quake2 (.md2)")

def register():
# initialize()
# bpy.utils.register_class(Export_MD2)
bpy.utils.register_module(__name__)
bpy.types.INFO_MT_file_export.append(menuCB)

def unregister():
bpy.utils.unregister_module(__name__)
bpy.types.INFO_MT_file_export.remove(menuCB)

if __name__ == "__main__":
register()


Although I didn't write the entire script, I did correct the blender API problems it had. Works great.

[EgonOlsen]

I tried with second parameter null. No difference.

Fixed in this jar: http://jpct.de/download/beta/jpct.jar. The problem has been caused by this line in the file:

Code Select Expand

usemtl

Actually, the usemtl should be followed by the material to use. This way, it's just pointless and the loader didn't expect it to appear without anything written behind it.

[Socke]

Thanks