forked from bartvdbraak/blender
1752c03441
Have alredy tested 100's of obj files and cant believe this is the first I have found with negative coords. May fix the UI before 2.41, Importing a whole dir isnt very user friendly. and may want to support sequence import. - Cam
957 lines
31 KiB
Python
957 lines
31 KiB
Python
#!BPY
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"""
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Name: 'Wavefront (.obj)...'
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Blender: 237
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Group: 'Import'
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Tooltip: 'Load a Wavefront OBJ File, Shift: batch import all dir.'
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"""
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__author__ = "Campbell Barton"
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__url__ = ["blender", "elysiun"]
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__version__ = "1.0"
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__bpydoc__ = """\
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This script imports OBJ files to Blender.
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Usage:
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Run this script from "File->Import" menu and then load the desired OBJ file.
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"""
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# $Id$
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#
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# --------------------------------------------------------------------------
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# OBJ Import v1.0 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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# Return directory, where the file is #
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#==============================================#
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def stripFile(path):
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lastSlash = max(path.rfind('\\'), path.rfind('/'))
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if lastSlash != -1:
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path = path[:lastSlash]
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return '%s%s' % (path, sys.sep)
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#==============================================#
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# Strips the slashes from the back of a string #
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#==============================================#
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def stripPath(path):
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return path.split('/')[-1].split('\\')[-1]
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#====================================================#
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# Strips the prefix off the name before writing #
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#====================================================#
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def stripExt(name): # name is a string
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index = name.rfind('.')
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if index != -1:
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return name[ : index ]
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else:
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return name
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from Blender import *
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# Adds a slash to the end of a path if its not there.
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def addSlash(path):
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if path.endswith('\\') or path.endswith('/'):
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return path
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return path + sys.sep
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def getExt(name):
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index = name.rfind('.')
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if index != -1:
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return name[index+1:]
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return name
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try:
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import os
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except:
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# So we know if os exists.
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print 'Module "os" not found, install python to enable comprehensive image finding and batch loading.'
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os = None
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#===========================================================================#
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# Comprehansive image loader, will search and find the image #
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# Will return a blender image or none if the image is missing #
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#===========================================================================#
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def comprehansiveImageLoad(imagePath, filePath):
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# When we have the file load it with this. try/except niceness.
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def imageLoad(path):
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try:
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img = Image.Load(path)
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print '\t\tImage loaded "%s"' % path
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return img
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except:
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print '\t\tImage failed loading "%s", mabe its not a format blender can read.' % (path)
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return None
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# Image formats blender can read
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IMAGE_EXT = ['jpg', 'jpeg', 'png', 'tga', 'bmp', 'rgb', 'sgi', 'bw', 'iff', 'lbm', # Blender Internal
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'gif', 'psd', 'tif', 'tiff', 'pct', 'pict', 'pntg', 'qtif'] # Quacktime, worth a try.
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print '\tAttempting to load "%s"' % imagePath
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if sys.exists(imagePath):
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print '\t\tFile found where expected.'
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return imageLoad(imagePath)
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imageFileName = stripPath(imagePath) # image path only
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imageFileName_lower = imageFileName.lower() # image path only
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imageFileName_noext = stripExt(imageFileName) # With no extension.
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imageFileName_noext_lower = stripExt(imageFileName_lower) # With no extension.
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imageFilePath = stripFile(imagePath)
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# Remove relative path from image path
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if imageFilePath.startswith('./') or imageFilePath.startswith('.\\'):
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imageFilePath = imageFilePath[2:]
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# Attempt to load from obj path.
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tmpPath = stripFile(filePath) + stripFile(imageFilePath)
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if sys.exists(tmpPath):
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print '\t\tFile found in obj dir.'
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return imageLoad(imagePath)
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# OS NEEDED IF WE GO ANY FURTHER.
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if not os:
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return
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# We have os.
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# GATHER PATHS.
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paths = {} # Store possible paths we may use, dict for no doubles.
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tmpPath = addSlash(sys.expandpath('//')) # Blenders path
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if sys.exists(tmpPath):
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print '\t\tSearching in %s' % tmpPath
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paths[tmpPath] = [os.listdir(tmpPath)] # Orig name for loading
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paths[tmpPath].append([f.lower() for f in paths[tmpPath][0]]) # Lower case list.
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paths[tmpPath].append([stripExt(f) for f in paths[tmpPath][1]]) # Lower case no ext
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tmpPath = imageFilePath
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if sys.exists(tmpPath):
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print '\t\tSearching in %s' % tmpPath
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paths[tmpPath] = [os.listdir(tmpPath)] # Orig name for loading
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paths[tmpPath].append([f.lower() for f in paths[tmpPath][0]]) # Lower case list.
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paths[tmpPath].append([stripExt(f) for f in paths[tmpPath][1]]) # Lower case no ext
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tmpPath = stripFile(filePath)
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if sys.exists(tmpPath):
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print '\t\tSearching in %s' % tmpPath
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paths[tmpPath] = [os.listdir(tmpPath)] # Orig name for loading
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paths[tmpPath].append([f.lower() for f in paths[tmpPath][0]]) # Lower case list.
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paths[tmpPath].append([stripExt(f) for f in paths[tmpPath][1]]) # Lower case no ext
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tmpPath = addSlash(Get('texturesdir'))
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if tmpPath and sys.exists(tmpPath):
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print '\t\tSearching in %s' % tmpPath
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paths[tmpPath] = [os.listdir(tmpPath)] # Orig name for loading
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paths[tmpPath].append([f.lower() for f in paths[tmpPath][0]]) # Lower case list.
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paths[tmpPath].append([stripExt(f) for f in paths[tmpPath][1]]) # Lower case no ext
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# Add path if relative image patrh was given.
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for k in paths.iterkeys():
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tmpPath = k + imageFilePath
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if sys.exists(tmpPath):
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paths[tmpPath] = [os.listdir(tmpPath)] # Orig name for loading
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paths[tmpPath].append([f.lower() for f in paths[tmpPath][0]]) # Lower case list.
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paths[tmpPath].append([stripExt(f) for f in paths[tmpPath][1]]) # Lower case no ext
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# DONE
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#
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for path, files in paths.iteritems():
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if sys.exists(path + imageFileName):
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return imageLoad(path + imageFileName)
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# If the files not there then well do a case insensitive seek.
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filesOrigCase = files[0]
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filesLower = files[1]
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filesLowerNoExt = files[2]
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# We are going to try in index the file directly, if its not there just keep on
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index = None
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try:
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# Is it just a case mismatch?
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index = filesLower.index(imageFileName_lower)
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except:
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try:
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# Have the extensions changed?
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index = filesLowerNoExt.index(imageFileName_noext_lower)
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ext = getExt( filesLower[index] ) # Get the extension of the file that matches all but ext.
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# Check that the ext is useable eg- not a 3ds file :)
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if ext.lower() not in IMAGE_EXT:
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index = None
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except:
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index = None
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if index != None:
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tmpPath = path + filesOrigCase[index]
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img = imageLoad( tmpPath )
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if img != None:
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print '\t\tImage Found "%s"' % tmpPath
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return img
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# IMAGE NOT FOUND IN ANY OF THE DIRS!, DO A RECURSIVE SEARCH.
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print '\t\tImage Not Found in any of the dirs, doing a recusrive search'
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for path in paths.iterkeys():
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# Were not going to use files
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#------------------
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# finds the file starting at the root.
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# def findImage(findRoot, imagePath):
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#W---------------
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# ROOT, DIRS, FILES
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pathWalk = os.walk(path)
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pathList = [True]
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matchList = [] # Store a list of (match, size), choose the biggest.
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while True:
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try:
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pathList = pathWalk.next()
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except:
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break
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for file in pathList[2]:
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file_lower = file.lower()
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# FOUND A MATCH
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if (file_lower == imageFileName_lower) or\
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(stripExt(file_lower) == imageFileName_noext_lower and getExt(file_lower) in IMAGE_EXT):
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name = pathList[0] + sys.sep + file
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size = os.path.getsize(name)
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print '\t\t\tfound:', name
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matchList.append( (name, size) )
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if matchList:
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# Sort by file size
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matchList.sort(lambda A, B: cmp(B[1], A[1]) )
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print '\t\tFound "%s"' % matchList[0][0]
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# Loop through all we have found
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img = None
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for match in matchList:
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img = imageLoad(match[0]) # 0 - first, 0 - pathname
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if img != None:
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break
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return img
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# No go.
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print '\t\tImage Not Found "%s"' % imagePath
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return None
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#==================================================================================#
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# This function sets textures defined in .mtl file #
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#==================================================================================#
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# ___ Replaced by comprehensive imahge get
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#==================================================================================#
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# This function sets textures defined in .mtl file #
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#==================================================================================#
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def loadMaterialImage(mat, img_fileName, type, meshDict, dir):
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TEX_ON_FLAG = NMesh.FaceModes['TEX']
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texture = Texture.New(type)
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texture.setType('Image')
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# Absolute path - c:\.. etc would work here
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image = comprehansiveImageLoad(img_fileName, dir)
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if image:
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texture.image = image
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# adds textures to faces (Textured/Alt-Z mode)
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# Only apply the diffuse texture to the face if the image has not been set with the inline usemat func.
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if image and type == 'Kd':
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for meshPair in meshDict.itervalues():
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for f in meshPair[0].faces:
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#print meshPair[0].materials[f.mat].name, mat.name
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if meshPair[0].materials[f.mat].name == mat.name:
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# the inline usemat command overides the material Image
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if not f.image:
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f.mode |= TEX_ON_FLAG
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f.image = image
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# adds textures for materials (rendering)
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elif type == 'Ka':
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mat.setTexture(0, texture, Texture.TexCo.UV, Texture.MapTo.CMIR) # TODO- Add AMB to BPY API
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elif type == 'Kd':
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mat.setTexture(1, texture, Texture.TexCo.UV, Texture.MapTo.COL)
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elif type == 'Ks':
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mat.setTexture(2, texture, Texture.TexCo.UV, Texture.MapTo.SPEC)
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elif type == 'Bump': # New Additions
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mat.setTexture(3, texture, Texture.TexCo.UV, Texture.MapTo.NOR)
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elif type == 'D':
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mat.setTexture(4, texture, Texture.TexCo.UV, Texture.MapTo.ALPHA)
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elif type == 'refl':
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mat.setTexture(5, texture, Texture.TexCo.UV, Texture.MapTo.REF)
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#==================================================================================#
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# This function loads materials from .mtl file (have to be defined in obj file) #
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#==================================================================================#
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def load_mtl(dir, mtl_file, meshDict, materialDict):
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#===============================================================================#
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# This gets a mat or creates one of the requested name if none exist. #
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#===============================================================================#
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def getMat(matName, materialDict):
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# Make a new mat
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try:
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return materialDict[matName]
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#except NameError or KeyError:
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except: # Better do any exception
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# Do we realy need to keep the dict up to date?, not realy but keeps consuistant.
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materialDict[matName] = Material.New(matName)
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return materialDict[matName]
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mtl_file = stripPath(mtl_file)
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mtl_fileName = dir + mtl_file
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try:
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fileLines= open(mtl_fileName, 'r').readlines()
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except IOError:
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print '\tunable to open referenced material file: "%s"' % mtl_fileName
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return
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try:
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lIdx=0
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while lIdx < len(fileLines):
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l = fileLines[lIdx].split()
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# Detect a line that will be ignored
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if len(l) == 0 or l[0].startswith('#'):
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pass
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elif l[0] == 'newmtl':
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currentMat = getMat('_'.join(l[1:]), materialDict) # Material should alredy exist.
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elif l[0] == 'Ka':
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currentMat.setMirCol((float(l[1]), float(l[2]), float(l[3])))
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elif l[0] == 'Kd':
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currentMat.setRGBCol((float(l[1]), float(l[2]), float(l[3])))
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elif l[0] == 'Ks':
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currentMat.setSpecCol((float(l[1]), float(l[2]), float(l[3])))
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elif l[0] == 'Ns':
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currentMat.setHardness( int((float(l[1])*0.51)) )
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elif l[0] == 'Ni': # Refraction index
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currentMat.setIOR( max(1, min(float(l[1]), 3))) # Between 1 and 3
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elif l[0] == 'd':
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currentMat.setAlpha(float(l[1]))
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elif l[0] == 'Tr':
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currentMat.setAlpha(float(l[1]))
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elif l[0] == 'map_Ka':
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img_fileName = ' '.join(l[1:])
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loadMaterialImage(currentMat, img_fileName, 'Ka', meshDict, dir)
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elif l[0] == 'map_Ks':
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img_fileName = ' '.join(l[1:])
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loadMaterialImage(currentMat, img_fileName, 'Ks', meshDict, dir)
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elif l[0] == 'map_Kd':
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img_fileName = ' '.join(l[1:])
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loadMaterialImage(currentMat, img_fileName, 'Kd', meshDict, dir)
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# new additions
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elif l[0] == 'map_Bump': # Bumpmap
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img_fileName = ' '.join(l[1:])
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loadMaterialImage(currentMat, img_fileName, 'Bump', meshDict, dir)
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elif l[0] == 'map_D': # Alpha map - Dissolve
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img_fileName = ' '.join(l[1:])
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loadMaterialImage(currentMat, img_fileName, 'D', meshDict, dir)
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elif l[0] == 'refl': # Reflectionmap
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img_fileName = ' '.join(l[1:])
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loadMaterialImage(currentMat, img_fileName, 'refl', meshDict, dir)
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lIdx+=1
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except:
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print '\tERROR: Unable to parse MTL file: "%s"' % mtl_file
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return
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print '\tUsing MTL: "%s"' % mtl_file
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#===========================================================================#
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# Returns unique name of object/mesh (preserve overwriting existing meshes) #
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#===========================================================================#
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def getUniqueName(name):
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newName = name
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uniqueInt = 0
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while 1:
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try:
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ob = Object.Get(newName)
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# Okay, this is working, so lets make a new name
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newName = '%s.%d' % (name, uniqueInt)
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uniqueInt +=1
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except AttributeError:
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if newName not in NMesh.GetNames():
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return newName
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else:
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newName = '%s.%d' % (name, uniqueInt)
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uniqueInt +=1
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#==================================================================================#
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# This loads data from .obj file #
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#==================================================================================#
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def load_obj(file):
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print '\nImporting OBJ file: "%s"' % file
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time1 = sys.time()
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# Deselect all objects in the scene.
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# do this first so we dont have to bother, with objects we import
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for ob in Scene.GetCurrent().getChildren():
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ob.sel = 0
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TEX_OFF_FLAG = ~NMesh.FaceModes['TEX']
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# Get the file name with no path or .obj
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fileName = stripExt( stripPath(file) )
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mtl_fileName = [] # Support multiple mtl files if needed.
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DIR = stripFile(file)
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tempFile = open(file, 'r')
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fileLines = tempFile.readlines()
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tempFile.close()
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uvMapList = [] # store tuple uv pairs here
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# This dummy vert makes life a whole lot easier-
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# pythons index system then aligns with objs, remove later
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vertList = [] # Could havea vert but since this is a placeholder theres no Point
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# Store all imported images in a dict, names are key
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imageDict = {}
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# This stores the index that the current mesh has for the current material.
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# if the mesh does not have the material then set -1
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contextMeshMatIdx = -1
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# Keep this out of the dict for easy accsess.
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nullMat = Material.New('(null)')
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currentMat = nullMat # Use this mat.
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currentImg = None # Null image is a string, otherwise this should be set to an image object.\
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currentSmooth = False
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# Store a list of unnamed names
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currentUnnamedGroupIdx = 1
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currentUnnamedObjectIdx = 1
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quadList = (0, 1, 2, 3)
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faceQuadVList = [None, None, None, None]
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faceTriVList = [None, None, None]
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#==================================================================================#
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# Load all verts first (texture verts too) #
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#==================================================================================#
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nonVertFileLines = []
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smoothingGroups = {}
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materialDict = {} # Store all imported materials as unique dict, names are key
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lIdx = 0
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print '\tfile length: %d' % len(fileLines)
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while lIdx < len(fileLines):
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# Ignore vert normals
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if fileLines[lIdx].startswith('vn'):
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lIdx+=1
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continue
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# Dont Bother splitting empty or comment lines.
|
|
if len(fileLines[lIdx]) == 0 or\
|
|
fileLines[lIdx][0] == '\n' or\
|
|
fileLines[lIdx][0] == '#':
|
|
pass
|
|
|
|
else:
|
|
fileLines[lIdx] = fileLines[lIdx].split()
|
|
l = fileLines[lIdx]
|
|
|
|
# Splitting may
|
|
if len(l) == 0:
|
|
pass
|
|
# Verts
|
|
elif l[0] == 'v':
|
|
vertList.append( NMesh.Vert(float(l[1]), float(l[2]), float(l[3]) ) )
|
|
|
|
# UV COORDINATE
|
|
elif l[0] == 'vt':
|
|
uvMapList.append( (float(l[1]), float(l[2])) )
|
|
|
|
# Smoothing groups, make a list of unique.
|
|
elif l[0] == 's':
|
|
if len(l) > 1:
|
|
smoothingGroups['_'.join(l[1:])] = None # Can we assign something more usefull? cant use sets yet
|
|
|
|
# Keep Smoothing group line
|
|
nonVertFileLines.append(l)
|
|
|
|
# Smoothing groups, make a list of unique.
|
|
elif l[0] == 'usemtl':
|
|
if len(l) > 1:
|
|
materialDict['_'.join(l[1:])] = None # Can we assign something more usefull? cant use sets yet
|
|
|
|
# Keep Smoothing group line
|
|
nonVertFileLines.append(l)
|
|
|
|
else:
|
|
nonVertFileLines.append(l)
|
|
lIdx+=1
|
|
|
|
|
|
del fileLines
|
|
fileLines = nonVertFileLines
|
|
del nonVertFileLines
|
|
|
|
# With negative values this is used a lot. make faster access.
|
|
len_uvMapList = len(uvMapList)
|
|
len_vertList = len(vertList)
|
|
|
|
# Only want unique keys anyway
|
|
smoothingGroups['(null)'] = None # Make sure we have at least 1.
|
|
smoothingGroups = smoothingGroups.keys()
|
|
print '\tfound %d smoothing groups.' % (len(smoothingGroups) -1)
|
|
|
|
# Add materials to Blender for later is in teh OBJ
|
|
for k in materialDict.iterkeys():
|
|
materialDict[k] = Material.New(k)
|
|
|
|
|
|
# Make a list of all unused vert indicies that we can copy from
|
|
VERT_USED_LIST = [0]*len_vertList
|
|
|
|
# Here we store a boolean list of which verts are used or not
|
|
# no we know weather to add them to the current mesh
|
|
# This is an issue with global vertex indicies being translated to per mesh indicies
|
|
# like blenders, we start with a dummy just like the vert.
|
|
# -1 means unused, any other value refers to the local mesh index of the vert.
|
|
|
|
# currentObjectName has a char in front of it that determins weather its a group or object.
|
|
# We ignore it when naming the object.
|
|
currentObjectName = 'unnamed_obj_0' # If we cant get one, use this
|
|
|
|
meshDict = {} # The 3 variables below are stored in a tuple within this dict for each mesh
|
|
currentMesh = NMesh.GetRaw() # The NMesh representation of the OBJ group/Object
|
|
currentUsedVertList = {} # A Dict of smooth groups, each smooth group has a list of used verts and they are generated on demand so as to save memory.
|
|
currentMaterialMeshMapping = {} # Used to store material indicies so we dont have to search the mesh for materials every time.
|
|
|
|
# Every mesh has a null smooth group, this is used if there are no smooth groups in the OBJ file.
|
|
# and when for faces where no smooth group is used.
|
|
currentSmoothGroup = '(null)' # The Name of the current smooth group
|
|
|
|
# For direct accsess to the Current Meshes, Current Smooth Groups- Used verts.
|
|
# This is of course context based and changes on the fly.
|
|
currentUsedVertListSmoothGroup = VERT_USED_LIST[:]
|
|
|
|
# Set the initial '(null)' Smooth group, every mesh has one.
|
|
currentUsedVertList[currentSmoothGroup] = currentUsedVertListSmoothGroup
|
|
|
|
|
|
# 0:NMesh, 1:SmoothGroups[UsedVerts[0,0,0,0]], 2:materialMapping['matname':matIndexForThisNMesh]
|
|
meshDict[currentObjectName] = (currentMesh, currentUsedVertList, currentMaterialMeshMapping)
|
|
|
|
# Only show the bad uv error once
|
|
badObjUvs = 0
|
|
badObjFaceVerts = 0
|
|
badObjFaceTexCo = 0
|
|
|
|
|
|
#currentMesh.verts.append(vertList[0]) # So we can sync with OBJ indicies where 1 is the first item.
|
|
if len_uvMapList > 1:
|
|
currentMesh.hasFaceUV(1) # Turn UV's on if we have ANY texture coords in this obj file.
|
|
|
|
|
|
#==================================================================================#
|
|
# Load all faces into objects, main loop #
|
|
#==================================================================================#
|
|
lIdx = 0
|
|
# Face and Object loading LOOP
|
|
while lIdx < len(fileLines):
|
|
l = fileLines[lIdx]
|
|
|
|
# FACE
|
|
if l[0] == 'f':
|
|
# Make a face with the correct material.
|
|
|
|
# Add material to mesh
|
|
if contextMeshMatIdx == -1:
|
|
tmpMatLs = currentMesh.materials
|
|
|
|
if len(tmpMatLs) == 16:
|
|
contextMeshMatIdx = 0 # Use first material
|
|
print 'material overflow, attempting to use > 16 materials. defaulting to first.'
|
|
else:
|
|
contextMeshMatIdx = len(tmpMatLs)
|
|
currentMaterialMeshMapping[currentMat.name] = contextMeshMatIdx
|
|
currentMesh.addMaterial(currentMat)
|
|
|
|
# Set up vIdxLs : Verts
|
|
# Set up vtIdxLs : UV
|
|
# Start with a dummy objects so python accepts OBJs 1 is the first index.
|
|
vIdxLs = []
|
|
vtIdxLs = []
|
|
|
|
|
|
fHasUV = len_uvMapList # Assume the face has a UV until it sho it dosent, if there are no UV coords then this will start as 0.
|
|
for v in l[1:]:
|
|
# OBJ files can have // or / to seperate vert/texVert/normal
|
|
# this is a bit of a pain but we must deal with it.
|
|
objVert = v.split('/')
|
|
|
|
# Vert Index - OBJ supports negative index assignment (like python)
|
|
index = int(objVert[0])+1
|
|
# Account for negative indicies.
|
|
if index < 1:
|
|
index = len_vertList+index-1
|
|
|
|
vIdxLs.append(index)
|
|
if fHasUV:
|
|
# UV
|
|
index = 0 # Dummy var
|
|
if len(objVert) == 1:
|
|
index = vIdxLs[-1]
|
|
elif objVert[1]: # != '' # Its possible that theres no texture vert just he vert and normal eg 1//2
|
|
index = int(objVert[1])-1
|
|
if index < 1:
|
|
index = len_uvMapList+index+1
|
|
|
|
if len_uvMapList > index:
|
|
vtIdxLs.append(index) # Seperate UV coords
|
|
else:
|
|
# BAD FILE, I have found this so I account for it.
|
|
# INVALID UV COORD
|
|
# Could ignore this- only happens with 1 in 1000 files.
|
|
badObjFaceTexCo +=1
|
|
vtIdxLs.append(1)
|
|
|
|
fHasUV = 0
|
|
|
|
# Dont add a UV to the face if its larger then the UV coord list
|
|
# The OBJ file would have to be corrupt or badly written for thi to happen
|
|
# but account for it anyway.
|
|
if len(vtIdxLs) > 0:
|
|
if vtIdxLs[-1] > len_uvMapList:
|
|
fHasUV = 0
|
|
|
|
badObjUvs +=1 # ERROR, Cont
|
|
# Quads only, we could import quads using the method below but it polite to import a quad as a quad.
|
|
if len(vIdxLs) == 2:
|
|
# Edge
|
|
for i in (0,1):
|
|
if currentUsedVertListSmoothGroup[vIdxLs[i]] == 0:
|
|
faceQuadVList[i] = vertList[vIdxLs[i]]
|
|
currentMesh.verts.append(faceQuadVList[i])
|
|
currentUsedVertListSmoothGroup[vIdxLs[i]] = len(currentMesh.verts)-1
|
|
else:
|
|
faceQuadVList[i] = currentMesh.verts[currentUsedVertListSmoothGroup[vIdxLs[i]]]
|
|
|
|
currentMesh.addEdge(faceQuadVList[0], faceQuadVList[1])
|
|
elif len(vIdxLs) == 4:
|
|
|
|
# Have found some files where wach face references the same vert
|
|
# - This causes a bug and stopts the import so lets check here
|
|
if vIdxLs[0] == vIdxLs[1] or\
|
|
vIdxLs[0] == vIdxLs[2] or\
|
|
vIdxLs[0] == vIdxLs[3] or\
|
|
vIdxLs[1] == vIdxLs[2] or\
|
|
vIdxLs[1] == vIdxLs[3] or\
|
|
vIdxLs[2] == vIdxLs[3]:
|
|
badObjFaceVerts+=1
|
|
else:
|
|
for i in quadList: # quadList == [0,1,2,3]
|
|
if currentUsedVertListSmoothGroup[vIdxLs[i]] == 0:
|
|
faceQuadVList[i] = vertList[vIdxLs[i]]
|
|
currentMesh.verts.append(faceQuadVList[i])
|
|
currentUsedVertListSmoothGroup[vIdxLs[i]] = len(currentMesh.verts)-1
|
|
else:
|
|
faceQuadVList[i] = currentMesh.verts[currentUsedVertListSmoothGroup[vIdxLs[i]]]
|
|
|
|
f = NMesh.Face(faceQuadVList)
|
|
# UV MAPPING
|
|
if fHasUV:
|
|
f.uv = [uvMapList[ vtIdxLs[0] ],uvMapList[ vtIdxLs[1] ],uvMapList[ vtIdxLs[2] ],uvMapList[ vtIdxLs[3] ]]
|
|
if currentImg:
|
|
f.image = currentImg
|
|
else:
|
|
f.mode &= TEX_OFF_FLAG
|
|
|
|
f.mat = contextMeshMatIdx
|
|
f.smooth = currentSmooth
|
|
currentMesh.faces.append(f) # move the face onto the mesh
|
|
|
|
elif len(vIdxLs) >= 3: # This handles tri's and fans
|
|
for i in range(len(vIdxLs)-2):
|
|
if vIdxLs[0] == vIdxLs[i+1] or\
|
|
vIdxLs[0] == vIdxLs[i+2] or\
|
|
vIdxLs[i+1] == vIdxLs[i+2]:
|
|
badObjFaceVerts+=1
|
|
else:
|
|
for k, j in [(0,0), (1,i+1), (2,i+2)]:
|
|
if currentUsedVertListSmoothGroup[vIdxLs[j]] == 0:
|
|
faceTriVList[k] = vertList[vIdxLs[j]]
|
|
currentMesh.verts.append(faceTriVList[k])
|
|
currentUsedVertListSmoothGroup[vIdxLs[j]] = len(currentMesh.verts)-1
|
|
else:
|
|
faceTriVList[k] = currentMesh.verts[currentUsedVertListSmoothGroup[vIdxLs[j]]]
|
|
|
|
f = NMesh.Face(faceTriVList)
|
|
|
|
# UV MAPPING
|
|
if fHasUV:
|
|
f.uv = [uvMapList[vtIdxLs[0]], uvMapList[vtIdxLs[i+1]], uvMapList[vtIdxLs[i+2]]]
|
|
if currentImg:
|
|
f.image = currentImg
|
|
else:
|
|
f.mode &= TEX_OFF_FLAG
|
|
|
|
f.mat = contextMeshMatIdx
|
|
f.smooth = currentSmooth
|
|
currentMesh.faces.append(f) # move the face onto the mesh
|
|
|
|
# FACE SMOOTHING
|
|
elif l[0] == 's':
|
|
# No value? then turn on.
|
|
if len(l) == 1:
|
|
currentSmooth = True
|
|
currentSmoothGroup = '(null)'
|
|
try:
|
|
currentUsedVertListSmoothGroup = currentUsedVertList[currentSmoothGroup]
|
|
except KeyError:
|
|
currentUsedVertListSmoothGroup = VERT_USED_LIST[:]
|
|
currentUsedVertList[currentSmoothGroup] = currentUsedVertListSmoothGroup
|
|
|
|
else:
|
|
if l[1] == 'off':
|
|
currentSmooth = False
|
|
currentSmoothGroup = '(null)'
|
|
# We all have a null group so dont need to try
|
|
currentUsedVertListSmoothGroup = currentUsedVertList['(null)']
|
|
else:
|
|
currentSmooth = True
|
|
currentSmoothGroup = '_'.join(l[1:])
|
|
|
|
# OBJECT / GROUP
|
|
elif l[0] == 'o' or l[0] == 'g':
|
|
|
|
# Forget about the current image
|
|
currentImg = None
|
|
|
|
# This makes sure that if an object and a group have the same name then
|
|
# they are not put into the same object.
|
|
|
|
# Only make a new group.object name if the verts in the existing object have been used, this is obscure
|
|
# but some files face groups seperating verts and faces which results in silly things. (no groups have names.)
|
|
if len(l) > 1:
|
|
currentObjectName = '_'.join(l[1:])
|
|
else: # No name given
|
|
# Make a new empty name
|
|
if l[0] == 'g': # Make a blank group name
|
|
currentObjectName = 'unnamed_grp_%d' % currentUnnamedGroupIdx
|
|
currentUnnamedGroupIdx +=1
|
|
else: # is an object.
|
|
currentObjectName = 'unnamed_ob_%d' % currentUnnamedObjectIdx
|
|
currentUnnamedObjectIdx +=1
|
|
|
|
|
|
# If we havnt written to this mesh before then do so.
|
|
# if we have then we'll just keep appending to it, this is required for soem files.
|
|
|
|
# If we are new, or we are not yet in the list of added meshes
|
|
# then make us new mesh.
|
|
if len(l) == 1 or (not meshDict.has_key(currentObjectName)):
|
|
currentMesh = NMesh.GetRaw()
|
|
|
|
currentUsedVertList = {}
|
|
|
|
# Sg is a string
|
|
currentSmoothGroup = '(null)'
|
|
currentUsedVertListSmoothGroup = VERT_USED_LIST[:]
|
|
currentUsedVertList[currentSmoothGroup] = currentUsedVertListSmoothGroup
|
|
currentMaterialMeshMapping = {}
|
|
|
|
meshDict[currentObjectName] = (currentMesh, currentUsedVertList, currentMaterialMeshMapping)
|
|
currentMesh.hasFaceUV(1)
|
|
contextMeshMatIdx = -1
|
|
|
|
else:
|
|
# Since we have this in Blender then we will check if the current Mesh has the material.
|
|
# set the contextMeshMatIdx to the meshs index but only if we have it.
|
|
currentMesh, currentUsedVertList, currentMaterialMeshMapping = meshDict[currentObjectName]
|
|
#getMeshMaterialIndex(currentMesh, currentMat)
|
|
|
|
try:
|
|
contextMeshMatIdx = currentMaterialMeshMapping[currentMat.name] #getMeshMaterialIndex(currentMesh, currentMat)
|
|
except KeyError:
|
|
contextMeshMatIdx -1
|
|
|
|
# For new meshes switch smoothing groups to null
|
|
currentSmoothGroup = '(null)'
|
|
currentUsedVertListSmoothGroup = currentUsedVertList[currentSmoothGroup]
|
|
|
|
# MATERIAL
|
|
elif l[0] == 'usemtl':
|
|
if len(l) == 1 or l[1] == '(null)':
|
|
currentMat = nullMat # We know we have a null mat.
|
|
else:
|
|
currentMat = materialDict['_'.join(l[1:])]
|
|
try:
|
|
contextMeshMatIdx = currentMaterialMeshMapping[currentMat.name]
|
|
except KeyError:
|
|
contextMeshMatIdx = -1 #getMeshMaterialIndex(currentMesh, currentMat)
|
|
|
|
# IMAGE
|
|
elif l[0] == 'usemat' or l[0] == 'usemap':
|
|
if len(l) == 1 or l[1] == '(null)' or l[1] == 'off':
|
|
currentImg = None
|
|
else:
|
|
# Load an image.
|
|
newImgName = stripPath(' '.join(l[1:])) # Use space since its a file name.
|
|
|
|
try:
|
|
# Assume its alredy set in the dict (may or maynot be loaded)
|
|
currentImg = imageDict[newImgName]
|
|
|
|
except KeyError: # Not in dict, add for first time.
|
|
# Image has not been added, Try and load the image
|
|
currentImg = comprehansiveImageLoad(newImgName, DIR) # Use join in case of spaces
|
|
imageDict[newImgName] = currentImg
|
|
# These may be None, thats okay.
|
|
|
|
|
|
|
|
# MATERIAL FILE
|
|
elif l[0] == 'mtllib':
|
|
mtl_fileName.append(' '.join(l[1:]) ) # SHOULD SUPPORT MULTIPLE MTL?
|
|
lIdx+=1
|
|
|
|
# Applies material properties to materials alredy on the mesh as well as Textures.
|
|
for mtl in mtl_fileName:
|
|
load_mtl(DIR, mtl, meshDict, materialDict)
|
|
|
|
|
|
importedObjects = []
|
|
for mk, me in meshDict.iteritems():
|
|
nme = me[0]
|
|
|
|
# Ignore no vert meshes.
|
|
if not nme.verts: # == []
|
|
continue
|
|
|
|
name = getUniqueName(mk)
|
|
ob = NMesh.PutRaw(nme, name)
|
|
ob.name = name
|
|
|
|
importedObjects.append(ob)
|
|
|
|
# Select all imported objects.
|
|
for ob in importedObjects:
|
|
ob.sel = 1
|
|
if badObjUvs > 0:
|
|
print '\tERROR: found %d faces with badly formatted UV coords. everything else went okay.' % badObjUvs
|
|
|
|
if badObjFaceVerts > 0:
|
|
print '\tERROR: found %d faces reusing the same vertex. everything else went okay.' % badObjFaceVerts
|
|
|
|
if badObjFaceTexCo > 0:
|
|
print '\tERROR: found %d faces with invalit texture coords. everything else went okay.' % badObjFaceTexCo
|
|
|
|
|
|
print "obj import time: ", sys.time() - time1
|
|
|
|
# Batch directory loading.
|
|
def load_obj_dir(obj_dir):
|
|
|
|
# Strip file
|
|
obj_dir = stripFile(obj_dir)
|
|
time = sys.time()
|
|
|
|
objFiles = [f for f in os.listdir(obj_dir) if f.lower().endswith('obj')]
|
|
|
|
Window.DrawProgressBar(0, '')
|
|
count = 0
|
|
obj_len = len(objFiles)
|
|
for obj in objFiles:
|
|
count+=1
|
|
|
|
newScn = Scene.New(obj)
|
|
newScn.makeCurrent()
|
|
|
|
Window.DrawProgressBar((float(count)/obj_len) - 0.01, '%s: %i of %i' % (obj, count, obj_len))
|
|
|
|
load_obj(obj_dir + obj)
|
|
|
|
Window.DrawProgressBar(1, '')
|
|
print 'Total obj import "%s" dir: %.2f' % (obj_dir, sys.time() - time)
|
|
|
|
|
|
def main():
|
|
TEXT_IMPORT = 'Import a Wavefront OBJ'
|
|
TEXT_BATCH_IMPORT = 'Import *.obj to Scenes'
|
|
# load_obj("/metavr/file_examples/obj/zombie.obj")
|
|
if Window.GetKeyQualifiers() & Window.Qual.SHIFT:
|
|
if not os:
|
|
Draw.PupMenu('Module "os" not found, needed for batch load, using normal selector.')
|
|
Window.FileSelector(load_obj, TEXT_IMPORT)
|
|
else:
|
|
Window.FileSelector(load_obj_dir, TEXT_BATCH_IMPORT)
|
|
else:
|
|
Window.FileSelector(load_obj, TEXT_IMPORT)
|
|
|
|
if __name__ == '__main__':
|
|
main() |