forked from bartvdbraak/blender
d34f89b755
* Added items for importing DXF, VRML, etc. in the File->Import menu, that just call the normal Open function. Most people don't even know that you can open these formats through the normal Open fileselect, so this will make it more obvious. * Removed the 'Export Selected' menu, and put poor old lonely STL in the Import and Export menus too. Most of the exporters export only the selected object anyway, so it's not really a necessary distinction to make.
148 lines
5.0 KiB
Python
148 lines
5.0 KiB
Python
#!BPY
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"""
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Name: 'Wavefront (.obj)...'
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Blender: 232
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Group: 'Export'
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Tooltip: 'Save a Wavefront OBJ File'
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"""
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# $Id$
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#
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# --------------------------------------------------------------------------
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# OBJ Export v0.9 by Campbell Barton (AKA Ideasman)
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# --------------------------------------------------------------------------
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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# --------------------------------------------------------------------------
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#================================================#
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# Gets the world matrix of an object #
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# by multiplying by parents mat's recursively #
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# This only works in some simple situations, #
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# needs work.... #
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#================================================#
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def getWorldMat(ob):
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mat = ob.getMatrix()
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p = ob.getParent()
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if p != None:
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mat = mat + getWorldMat(p)
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return mat
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#==================#
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# Apply Transform #
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#==================#
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def apply_transform(verts, matrix):
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verts.resize4D()
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return Mathutils.VecMultMat(verts, matrix)
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#====================================================#
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# Return a 6 deciaml point floating point value #
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# as a string that dosent have any python chars #
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#====================================================#
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def saneFloat(float):
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#return '%(float)b' % vars() # 6 fp as house.hqx
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return str('%f' % float) + ' '
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from Blender import *
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NULL_MAT = '(null)'
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def save_obj(filename):
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if filename.find('.obj', -4) <= 0: filename += '.obj' # for safety
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file = open(filename, "w")
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# Write Header
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file.write('# Blender OBJ File: ' + Get('filename') + ' \n')
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file.write('# www.blender.org\n')
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# Get all meshs
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for ob in Object.Get():
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if ob.getType() == 'Mesh':
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m = ob.getData()
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if len(m.verts) > 0: # Make sure there is somthing to write.
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# Set the default mat
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currentMatName = ''
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file.write('o ' + ob.getName() + '_' + m.name + '\n') # Write Object name
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# Dosent work properly,
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matrix = getWorldMat(ob)
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# Vert
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for v in m.verts:
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# Transform the vert
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vTx = apply_transform(v.co, matrix)
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file.write('v ')
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file.write(saneFloat(vTx[0]))
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file.write(saneFloat(vTx[1]))
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file.write(saneFloat(vTx[2]) + '\n')
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# UV
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for f in m.faces:
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for uvIdx in range(len(f.v)):
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file.write('vt ')
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if f.uv:
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file.write(saneFloat(f.uv[uvIdx][0]))
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file.write(saneFloat(f.uv[uvIdx][1]))
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else:
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file.write('0.0 ')
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file.write('0.0 ')
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file.write('0.0' + '\n')
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# NORMAL
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for f in m.faces:
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for v in f.v:
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# Transform the normal
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noTx = apply_transform(v.no, matrix)
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noTx.normalize()
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file.write('vn ')
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file.write(saneFloat(noTx[0]))
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file.write(saneFloat(noTx[1]))
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file.write(saneFloat(noTx[2]) + '\n')
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uvIdx = 0
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for f in m.faces:
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# Check material and change if needed.
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if len(m.materials) > f.mat:
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if currentMatName != m.materials[f.mat].getName():
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currentMatName = m.materials[f.mat].getName()
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file.write('usemtl ' + currentMatName + '\n')
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elif currentMatName != NULL_MAT:
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currentMatName = NULL_MAT
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file.write('usemtl ' + currentMatName + '\n')
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file.write('f ')
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for v in f.v:
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file.write( str(m.verts.index(v) +1) + '/') # Vert IDX
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file.write( str(uvIdx +1) + '/') # UV IDX
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file.write( str(uvIdx +1) + ' ') # NORMAL IDX
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uvIdx+=1
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file.write('\n')
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file.close()
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Window.FileSelector(save_obj, 'Export OBJ')
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