forked from bartvdbraak/blender
1605 lines
69 KiB
Python
1605 lines
69 KiB
Python
#!BPY
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"""
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Name: 'LightWave + Materials (.lwo)...'
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Blender: 237
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Group: 'Import'
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Tooltip: 'Import LightWave Object File Format (.lwo)'
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"""
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__author__ = "Alessandro Pirovano, Anthony D'Agostino (Scorpius)"
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__url__ = ("blender", "elysiun",
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"Author's homepage, http://www.redrival.com/scorpius", "Author's homepage, http://uaraus.altervista.org")
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importername = "lwo_import 0.1.16"
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# +---------------------------------------------------------+
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# | Save your work before and after use. |
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# | Please report any useful comment to: |
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# | uaraus-dem@yahoo.it |
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# | Thanks |
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# +---------------------------------------------------------+
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# +---------------------------------------------------------+
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# | Copyright (c) 2002 Anthony D'Agostino |
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# | http://www.redrival.com/scorpius |
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# | scorpius@netzero.com |
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# | April 21, 2002 |
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# | Released under the Blender Artistic Licence (BAL) |
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# | Import Export Suite v0.5 |
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# +---------------------------------------------------------+
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# | Read and write LightWave Object File Format (*.lwo) |
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# +---------------------------------------------------------+
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# +---------------------------------------------------------+
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# | Alessandro Pirovano tweaked starting on March 2005 |
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# | http://uaraus.altervista.org |
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# +---------------------------------------------------------+
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# +---------------------------------------------------------+
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# | Release log: |
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# | 0.1.16: fixed (try 2) texture offset calculations |
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# | added hint on axis mapping |
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# | added hint on texture blending mode |
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# | added hint on texture transparency setting |
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# | search images in original directory first |
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# | fixed texture order application |
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# | 0.1.15: added release log |
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# | fixed texture offset calculations (non-UV) |
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# | fixed reverting vertex order in face generation |
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# | associate texture on game-engine settings |
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# | vector math definitely based on mathutils |
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# | search images in "Images" and "../Images" dir |
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# | revised logging facility |
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# | fixed subsurf texture and material mappings |
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# | 0.1.14: patched missing mod_vector (not definitive) |
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# | 0.1.13: first public release |
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# +---------------------------------------------------------+
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#blender related import
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import Blender
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#iosuite related import
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try: #new naming
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import meshtools as my_meshtools
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except ImportError: #fallback to the old one
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print "using old mod_meshtools"
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import mod_meshtools as my_meshtools
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#python specific modules import
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import struct, chunk, os, cStringIO, time, operator, copy
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# ===========================================================
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# === Utility Preamble ======================================
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# ===========================================================
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textname = "lwo_log"
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#uncomment the following line to disable logging facility
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#textname = None 1
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# ===========================================================
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class dotext:
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_NO = 0 #use internal to class only
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LOG = 1 #write only to LOG
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CON = 2 #write to both LOG and CONSOLE
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def __init__(self, tname, where=LOG):
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self.dwhere = where #defaults on console only
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if (tname==None):
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print "*** not using text object to log script"
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self.txtobj = None
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return
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tlist = Blender.Text.get()
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for i in range(len(tlist)):
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if (tlist[i].getName()==tname):
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tlist[i].clear()
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#print tname, " text object found and cleared!"
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self.txtobj = tlist[i]
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return
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#print tname, " text object not found and created!"
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self.txtobj = Blender.Text.New(tname)
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# end def __init__
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def write(self, wstring, maxlen=100):
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if (self.txtobj==None): return
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while (1):
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ll = len(wstring)
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if (ll>maxlen):
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self.txtobj.write((wstring[:maxlen]))
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self.txtobj.write("\n")
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wstring = (wstring[maxlen:])
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else:
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self.txtobj.write(wstring)
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break
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# end def write
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def pstring(self, ppstring, where = _NO):
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if where == dotext._NO: where = self.dwhere
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if where == dotext.CON:
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print ppstring
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self.write(ppstring)
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self.write("\n")
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# end def pstring
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def plist(self, pplist, where = _NO):
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self.pprint ("list:[")
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for pp in range(len(pplist)):
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self.pprint ("[%d] -> %s" % (pp, pplist[pp]), where)
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self.pprint ("]")
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# end def plist
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def pdict(self, pdict, where = _NO):
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self.pprint ("dict:{", where)
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for pp in pdict.keys():
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self.pprint ("[%s] -> %s" % (pp, pdict[pp]), where)
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self.pprint ("}")
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# end def pdict
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def pprint(self, parg, where = _NO):
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if parg == None:
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self.pstring("_None_", where)
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elif type(parg) == type ([]):
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self.plist(parg, where)
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elif type(parg) == type ({}):
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self.pdict(parg, where)
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else:
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self.pstring(parg, where)
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# end def pprint
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def logcon(self, parg):
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self.pprint(parg, dotext.CON)
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# end def logcon
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# endclass dotext
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tobj=dotext(textname)
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#uncomment the following line to log all messages on both console and logfile
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#tobj=dotext(textname,dotext.CON)
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# ===========================================================
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# === Main read functions ===================================
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# ===========================================================
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# =============================
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# === Read LightWave Format ===
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# =============================
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def read(filename):
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global tobj
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tobj.logcon ("#####################################################################")
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tobj.logcon ("This is: %s" % importername)
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tobj.logcon ("Importing file:")
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tobj.logcon (filename)
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tobj.pprint ("#####################################################################")
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start = time.clock()
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file = open(filename, "rb")
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# === LWO header ===
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form_id, form_size, form_type = struct.unpack(">4s1L4s", file.read(12))
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if (form_type == "LWOB"):
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read_lwob(file, filename)
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elif (form_type == "LWO2"):
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read_lwo2(file, filename)
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else:
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tobj.logcon ("Can't read a file with the form_type: %s" %form_type)
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return
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Blender.Window.DrawProgressBar(1.0, "") # clear progressbar
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file.close()
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end = time.clock()
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seconds = " in %.2f %s" % (end-start, "seconds")
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if form_type == "LWO2": fmt = " (v6.0 Format)"
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if form_type == "LWOB": fmt = " (v5.5 Format)"
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message = "Successfully imported " + os.path.basename(filename) + fmt + seconds
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#my_meshtools.print_boxed(message)
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tobj.pprint ("#####################################################################")
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tobj.logcon (message)
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tobj.logcon ("#####################################################################")
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# enddef read
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# =================================
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# === Read LightWave 5.5 format ===
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# =================================
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def read_lwob(file, filename):
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global tobj
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tobj.logcon("LightWave 5.5 format")
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objname = os.path.splitext(os.path.basename(filename))[0]
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while 1:
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try:
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lwochunk = chunk.Chunk(file)
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except EOFError:
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break
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if lwochunk.chunkname == "LAYR":
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objname = read_layr(lwochunk)
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elif lwochunk.chunkname == "PNTS": # Verts
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verts = read_verts(lwochunk)
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elif lwochunk.chunkname == "POLS": # Faces v5.5
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faces = read_faces_5(lwochunk)
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my_meshtools.create_mesh(verts, faces, objname)
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else: # Misc Chunks
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lwochunk.skip()
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return
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# enddef read_lwob
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# =============================
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# === Read LightWave Format ===
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# =============================
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def read_lwo2(file, filename, typ="LWO2"):
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global tobj
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tobj.logcon("LightWave 6 (and above) format")
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dir_part = Blender.sys.dirname(filename)
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fname_part = Blender.sys.basename(filename)
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#first initialization of data structures
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defaultname = os.path.splitext(fname_part)[0]
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tag_list = [] #tag list: global for the whole file?
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surf_list = [] #surf list: global for the whole file?
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clip_list = [] #clip list: global for the whole file?
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object_index = 0
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object_list = None
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# init value is: object_list = [[None, {}, [], [], {}, {}, 0, {}, {}]]
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#0 - objname #original name
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#1 - obj_dict = {TAG} #objects created
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#2 - verts = [] #object vertices
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#3 - faces = [] #object faces (associations poly -> vertices)
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#4 - obj_dim_dict = {TAG} #tuples size and pos in local object coords - used for NON-UV mappings
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#5 - polytag_dict = {TAG} #tag to polygon mapping
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#6 - patch_flag #0 = surf; 1 = patch (subdivision surface) - it was the image list
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#7 - uvcoords_dict = {name} #uvmap coordinates (mixed mode per face/per vertex)
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#8 - facesuv_dict = {name} #uvmap coordinates associations poly -> uv tuples
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while 1:
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try:
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lwochunk = chunk.Chunk(file)
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except EOFError:
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break
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tobj.pprint(" ")
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if lwochunk.chunkname == "LAYR":
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tobj.pprint("---- LAYR")
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objname = read_layr(lwochunk)
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tobj.pprint(objname)
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if object_list == None:
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object_list = [[objname, {}, [], [], {}, {}, 0, {}, {}]]
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else:
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object_list.append([objname, {}, [], [], {}, {}, 0, {}, {}])
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object_index += 1
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elif lwochunk.chunkname == "PNTS": # Verts
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tobj.pprint("---- PNTS")
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verts = read_verts(lwochunk)
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object_list[object_index][2] = verts
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elif lwochunk.chunkname == "VMAP": # MAPS (UV)
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tobj.pprint("---- VMAP")
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object_list[object_index][7], object_list[object_index][8] = read_vmap(object_list[object_index][7], object_list[object_index][8], object_list[object_index][3], len(object_list[object_index][2]), lwochunk)
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elif lwochunk.chunkname == "VMAD": # MAPS (UV) per-face
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tobj.pprint("---- VMAD")
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object_list[object_index][7], object_list[object_index][8] = read_vmad(object_list[object_index][7], object_list[object_index][8], object_list[object_index][3], len(object_list[object_index][2]), lwochunk)
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elif lwochunk.chunkname == "POLS": # Faces v6.0
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tobj.pprint("-------- POLS(6)")
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faces, flag = read_faces_6(lwochunk)
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#flag is 0 for regular polygon, 1 for patches (= subsurf), 2 for anything else to be ignored
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if flag<2:
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if object_list[object_index][3] != []:
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object_list.append([object_list[object_index][0], #update name
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{}, #init
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copy.deepcopy(object_list[object_index][2]), #same vertices
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[], #no faces
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{}, #no need to copy - filled at runtime
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{}, #polygon tagging will follow
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flag, #patch flag
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copy.deepcopy(object_list[object_index][7]), #same uvcoords
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{}]) #no uv mapping
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object_index += 1
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#end if already has a face list
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#update uv coords mapping if VMAP already encountered
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for uvname in object_list[object_index][7]:
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tobj.pprint("updating uv to face mapping for %s" % uvname)
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object_list[object_index][8][uvname] = copy.deepcopy(faces)
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object_list[object_index][3] = faces
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objname = object_list[object_index][0]
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if objname == None:
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objname = defaultname
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#end if processing a valid poly type
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elif lwochunk.chunkname == "TAGS": # Tags
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tobj.pprint("---- TAGS")
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tag_list.extend(read_tags(lwochunk))
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elif lwochunk.chunkname == "PTAG": # PTags
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tobj.pprint("---- PTAG")
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polytag_dict = read_ptags(lwochunk, tag_list)
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for kk in polytag_dict.keys(): object_list[object_index][5][kk] = polytag_dict[kk]
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elif lwochunk.chunkname == "SURF": # surfaces
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tobj.pprint("---- SURF")
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surf_list.append(read_surfs(lwochunk, surf_list, tag_list))
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elif lwochunk.chunkname == "CLIP": # texture images
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tobj.pprint("---- CLIP")
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clip_list.append(read_clip(lwochunk))
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tobj.pprint("read total %s clips" % len(clip_list))
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else: # Misc Chunks
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tobj.pprint("---- %s: skipping" % lwochunk.chunkname)
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lwochunk.skip()
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#uncomment here to log data structure as it is built
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#tobj.pprint(object_list)
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tobj.pprint ("\n#####################################################################")
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tobj.pprint("Found %d objects:" % len(object_list))
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tobj.pprint ("#####################################################################")
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for objspec_list in object_list:
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tobj.pprint ("\n#===================================================================#")
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tobj.pprint("Processing Object: %s" % objspec_list[0])
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tobj.pprint ("#===================================================================#")
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objspec_list[3], objspec_list[5], objspec_list[8] = recalc_faces(objspec_list[2], objspec_list[3], objspec_list[5], objspec_list[8]) #recalculate faces, polytag_dict and uv_mapping get rid of faces fanning
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create_objects(objspec_list)
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if surf_list != []:
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create_material(clip_list, surf_list, objspec_list, dir_part) #give it all the object
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return
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# enddef read_lwo2
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# ===========================================================
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# === File reading routines =================================
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# ===========================================================
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# ==================
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# === Read Verts ===
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# ==================
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def read_verts(lwochunk):
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global tobj
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data = cStringIO.StringIO(lwochunk.read())
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numverts = lwochunk.chunksize/12
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#$verts = []
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verts = [None] * numverts
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for i in range(numverts):
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if not i%100 and my_meshtools.show_progress:
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Blender.Window.DrawProgressBar(float(i)/numverts, "Reading Verts")
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x, y, z = struct.unpack(">fff", data.read(12))
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verts[i] = (x, z, y)
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tobj.pprint("read %d vertices" % (i+1))
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return verts
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# enddef read_verts
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# =================
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# === Read Name ===
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# =================
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# modified to deal with odd lenght strings
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def read_name(file):
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name = ""
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while 1:
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char = file.read(1)
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if char == "\0": break
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else: name += char
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len_name = len(name) + 1 #count the trailing zero
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if len_name%2==1:
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char = file.read(1) #remove zero padding to even lenght
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len_name += 1
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return name, len_name
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# ==================
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# === Read Layer ===
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# ==================
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def read_layr(lwochunk):
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data = cStringIO.StringIO(lwochunk.read())
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idx, flags = struct.unpack(">hh", data.read(4))
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pivot = struct.unpack(">fff", data.read(12))
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layer_name, discard = read_name(data)
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if not layer_name: layer_name = "NoName"
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return layer_name
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# enddef read_layr
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# ======================
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# === Read Faces 5.5 ===
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# ======================
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def read_faces_5(lwochunk):
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data = cStringIO.StringIO(lwochunk.read())
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faces = []
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i = 0
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while i < lwochunk.chunksize:
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if not i%100 and my_meshtools.show_progress:
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Blender.Window.DrawProgressBar(float(i)/lwochunk.chunksize, "Reading Faces")
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facev = []
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numfaceverts, = struct.unpack(">H", data.read(2))
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for j in range(numfaceverts):
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index, = struct.unpack(">H", data.read(2))
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facev.append(index)
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facev.reverse()
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faces.append(facev)
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surfaceindex, = struct.unpack(">H", data.read(2))
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if surfaceindex < 0:
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tobj.logcon ("***Error. Referencing uncorrect surface index")
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return
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i += (4+numfaceverts*2)
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return faces
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# ==================================
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# === Read Variable-Length Index ===
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# ==================================
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def read_vx(data):
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byte1, = struct.unpack(">B", data.read(1))
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if byte1 != 0xFF: # 2-byte index
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byte2, = struct.unpack(">B", data.read(1))
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index = byte1*256 + byte2
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index_size = 2
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else: # 4-byte index
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byte2, byte3, byte4 = struct.unpack(">3B", data.read(3))
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index = byte2*65536 + byte3*256 + byte4
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index_size = 4
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return index, index_size
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# ======================
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# === Read uvmapping ===
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# ======================
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def read_vmap(uvcoords_dict, facesuv_dict, faces, maxvertnum, lwochunk):
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if maxvertnum == 0:
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tobj.pprint ("Found VMAP but no vertices to map!")
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return uvcoords_dict, facesuv_dict
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data = cStringIO.StringIO(lwochunk.read())
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map_type = data.read(4)
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if map_type != "TXUV":
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tobj.pprint ("Reading VMAP: No Texture UV map Were Found. Map Type: %s" % map_type)
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return uvcoords_dict, facesuv_dict
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dimension, = struct.unpack(">H", data.read(2))
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name, i = read_name(data) #i initialized with string lenght + zeros
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tobj.pprint ("TXUV %d %s" % (dimension, name))
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#my_uv_list = [None] * maxvertnum
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my_uv_list = [(0.0, 0.0)] * maxvertnum #more safe to have some default coordinates to associate in any case?
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while (i < lwochunk.chunksize - 6): #4+2 header bytes already read
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vertnum, vnum_size = read_vx(data)
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u, v = struct.unpack(">ff", data.read(8))
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if vertnum >= maxvertnum:
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tobj.pprint ("Hem: more uvmap than vertices? ignoring uv data for vertex %d" % vertnum)
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else:
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my_uv_list[vertnum] = (u, v)
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i += 8 + vnum_size
|
|
#end loop on uv pairs
|
|
uvcoords_dict[name] = my_uv_list
|
|
#this is a per-vertex mapping AND the uv tuple is vertex-ordered, so faces_uv is the same as faces
|
|
if faces == []:
|
|
tobj.pprint ("no faces read yet! delaying uv to face assignments")
|
|
facesuv_dict[name] = []
|
|
else:
|
|
#deepcopy so we could modify it without actually modify faces
|
|
tobj.pprint ("faces already present: proceeding with assignments")
|
|
facesuv_dict[name] = copy.deepcopy(faces)
|
|
return uvcoords_dict, facesuv_dict
|
|
|
|
|
|
# ========================
|
|
# === Read uvmapping 2 ===
|
|
# ========================
|
|
def read_vmad(uvcoords_dict, facesuv_dict, faces, maxvertnum, lwochunk):
|
|
maxfacenum = len(faces)
|
|
if maxvertnum == 0 or maxfacenum == 0:
|
|
tobj.pprint ("Found VMAD but no vertices to map!")
|
|
return uvcoords_dict, facesuv_dict
|
|
data = cStringIO.StringIO(lwochunk.read())
|
|
map_type = data.read(4)
|
|
if map_type != "TXUV":
|
|
tobj.pprint ("Reading VMAD: No Texture UV map Were Found. Map Type: %s" % map_type)
|
|
return uvcoords_dict, facesuv_dict
|
|
dimension, = struct.unpack(">H", data.read(2))
|
|
name, i = read_name(data) #i initialized with string lenght + zeros
|
|
tobj.pprint ("TXUV %d %s" % (dimension, name))
|
|
if uvcoords_dict.has_key(name):
|
|
my_uv_list = uvcoords_dict[name] #update existing
|
|
my_facesuv_list = facesuv_dict[name]
|
|
else:
|
|
my_uv_list = [(0.0, 0.0)] * maxvertnum #start a brand new: this could be made more smart
|
|
my_facesuv_list = copy.deepcopy(faces)
|
|
#end variable initialization
|
|
lastindex = len(my_uv_list) - 1
|
|
while (i < lwochunk.chunksize - 6): #4+2 header bytes already read
|
|
vertnum, vnum_size = read_vx(data)
|
|
i += vnum_size
|
|
polynum, vnum_size = read_vx(data)
|
|
i += vnum_size
|
|
u, v = struct.unpack(">ff", data.read(8))
|
|
if polynum >= maxfacenum or vertnum >= maxvertnum:
|
|
tobj.pprint ("Hem: more uvmap than vertices? ignorig uv data for vertex %d" % vertnum)
|
|
else:
|
|
my_uv_list.append( (u,v) )
|
|
newindex = len(my_uv_list) - 1
|
|
for vi in range(len(my_facesuv_list[polynum])): #polynum starting from 1 or from 0?
|
|
if my_facesuv_list[polynum][vi] == vertnum:
|
|
my_facesuv_list[polynum][vi] = newindex
|
|
#end loop on current face vertices
|
|
i += 8
|
|
#end loop on uv pairs
|
|
uvcoords_dict[name] = my_uv_list
|
|
facesuv_dict[name] = my_facesuv_list
|
|
tobj.pprint ("updated %d vertices data" % (newindex-lastindex))
|
|
return uvcoords_dict, facesuv_dict
|
|
|
|
|
|
# =================
|
|
# === Read tags ===
|
|
# =================
|
|
def read_tags(lwochunk):
|
|
data = cStringIO.StringIO(lwochunk.read())
|
|
tag_list = []
|
|
current_tag = ""
|
|
i = 0
|
|
while i < lwochunk.chunksize:
|
|
char = data.read(1)
|
|
if char == "\0":
|
|
tag_list.append(current_tag)
|
|
if (len(current_tag) % 2 == 0): char = data.read(1)
|
|
current_tag = ""
|
|
else:
|
|
current_tag += char
|
|
i += 1
|
|
tobj.pprint("read %d tags, list follows:" % len(tag_list))
|
|
tobj.pprint( tag_list)
|
|
return tag_list
|
|
|
|
|
|
# ==================
|
|
# === Read Ptags ===
|
|
# ==================
|
|
def read_ptags(lwochunk, tag_list):
|
|
data = cStringIO.StringIO(lwochunk.read())
|
|
polygon_type = data.read(4)
|
|
if polygon_type != "SURF":
|
|
tobj.pprint ("No Surf Were Found. Polygon Type: %s" % polygon_type)
|
|
return {}
|
|
ptag_dict = {}
|
|
i = 0
|
|
while(i < lwochunk.chunksize-4): #4 bytes polygon type already read
|
|
if not i%100 and my_meshtools.show_progress:
|
|
Blender.Window.DrawProgressBar(float(i)/lwochunk.chunksize, "Reading PTAGS")
|
|
poln, poln_size = read_vx(data)
|
|
i += poln_size
|
|
tag_index, = struct.unpack(">H", data.read(2))
|
|
if tag_index > (len(tag_list)):
|
|
tobj.pprint ("Reading PTAG: Surf belonging to undefined TAG: %d. Skipping" % tag_index)
|
|
return {}
|
|
i += 2
|
|
tag_key = tag_list[tag_index]
|
|
if not(ptag_dict.has_key(tag_key)):
|
|
ptag_dict[tag_list[tag_index]] = [poln]
|
|
else:
|
|
ptag_dict[tag_list[tag_index]].append(poln)
|
|
for i in ptag_dict.keys():
|
|
tobj.pprint ("read %d polygons belonging to TAG %s" % (len(ptag_dict[i]), i))
|
|
return ptag_dict
|
|
|
|
|
|
|
|
# ==================
|
|
# === Read Clips ===
|
|
# ==================
|
|
def read_clip(lwochunk):
|
|
clip_dict = {}
|
|
data = cStringIO.StringIO(lwochunk.read())
|
|
image_index, = struct.unpack(">L", data.read(4))
|
|
clip_dict['ID'] = image_index
|
|
i = 4
|
|
while(i < lwochunk.chunksize):
|
|
subchunkname, = struct.unpack("4s", data.read(4))
|
|
subchunklen, = struct.unpack(">H", data.read(2))
|
|
if subchunkname == "STIL":
|
|
tobj.pprint("-------- STIL")
|
|
clip_name, k = read_name(data)
|
|
#now split text independently from platform
|
|
#depend on the system where image was saved. NOT the one where the script is run
|
|
no_sep = "\\"
|
|
if Blender.sys.sep == no_sep: no_sep ="/"
|
|
if (no_sep in clip_name):
|
|
clip_name = clip_name.replace(no_sep, Blender.sys.sep)
|
|
short_name = Blender.sys.basename(clip_name)
|
|
if (clip_name == "") or (short_name == ""):
|
|
tobj.pprint ("Reading CLIP: Empty clip name not allowed. Skipping")
|
|
discard = data.read(subchunklen-k)
|
|
clip_dict['NAME'] = clip_name
|
|
clip_dict['BASENAME'] = short_name
|
|
elif subchunkname == "XREF": #cross reference another image
|
|
tobj.pprint("-------- XREF")
|
|
image_index, = struct.unpack(">L", data.read(4))
|
|
clip_name, k = read_name(data)
|
|
clip_dict['NAME'] = clip_name
|
|
clip_dict['XREF'] = image_index
|
|
elif subchunkname == "NEGA": #negate texture effect
|
|
tobj.pprint("-------- NEGA")
|
|
n, = struct.unpack(">H", data.read(2))
|
|
clip_dict['NEGA'] = n
|
|
else: # Misc Chunks
|
|
tobj.pprint("-------- SURF:%s: skipping" % subchunkname)
|
|
discard = data.read(subchunklen)
|
|
i = i + 6 + subchunklen
|
|
#end loop on surf chunks
|
|
tobj.pprint("read image:%s" % clip_dict)
|
|
return clip_dict
|
|
|
|
|
|
# ===========================
|
|
# === Read Surfaces Block ===
|
|
# ===========================
|
|
def read_surfblok(subchunkdata):
|
|
lenght = len(subchunkdata)
|
|
my_dict = {}
|
|
my_uvname = ""
|
|
data = cStringIO.StringIO(subchunkdata)
|
|
##############################################################
|
|
# blok header sub-chunk
|
|
##############################################################
|
|
subchunkname, = struct.unpack("4s", data.read(4))
|
|
subchunklen, = struct.unpack(">h", data.read(2))
|
|
accumulate_i = subchunklen + 6
|
|
if subchunkname != 'IMAP':
|
|
tobj.pprint("---------- SURF: BLOK: %s: block aborting" % subchunkname)
|
|
return {}, ""
|
|
tobj.pprint ("---------- IMAP")
|
|
ordinal, i = read_name(data)
|
|
my_dict['ORD'] = ordinal
|
|
my_dict['g_ORD'] = -1
|
|
my_dict['ENAB'] = True
|
|
while(i < subchunklen): # ---------left 6------------------------- loop on header parameters
|
|
sub2chunkname, = struct.unpack("4s", data.read(4))
|
|
sub2chunklen, = struct.unpack(">h", data.read(2))
|
|
i = i + 6 + sub2chunklen
|
|
if sub2chunkname == "CHAN":
|
|
tobj.pprint("------------ CHAN")
|
|
sub2chunkname, = struct.unpack("4s", data.read(4))
|
|
my_dict['CHAN'] = sub2chunkname
|
|
sub2chunklen -= 4
|
|
elif sub2chunkname == "ENAB": #only present if is to be disabled
|
|
tobj.pprint("------------ ENAB")
|
|
ena, = struct.unpack(">h", data.read(2))
|
|
my_dict['ENAB'] = ena
|
|
sub2chunklen -= 2
|
|
elif sub2chunkname == "NEGA": #only present if is to be enabled
|
|
tobj.pprint("------------ NEGA")
|
|
ena, = struct.unpack(">h", data.read(2))
|
|
if ena == 1:
|
|
my_dict['NEGA'] = ena
|
|
sub2chunklen -= 2
|
|
elif sub2chunkname == "OPAC": #only present if is to be disabled
|
|
tobj.pprint("------------ OPAC")
|
|
opa, = struct.unpack(">h", data.read(2))
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['OPAC'] = opa
|
|
my_dict['OPACVAL'] = s
|
|
sub2chunklen -= 6
|
|
elif sub2chunkname == "AXIS":
|
|
tobj.pprint("------------ AXIS")
|
|
ena, = struct.unpack(">h", data.read(2))
|
|
my_dict['DISPLAXIS'] = ena
|
|
sub2chunklen -= 2
|
|
else: # Misc Chunks
|
|
tobj.pprint("------------ SURF: BLOK: IMAP: %s: skipping" % sub2chunkname)
|
|
discard = data.read(sub2chunklen)
|
|
#end loop on blok header subchunks
|
|
##############################################################
|
|
# blok attributes sub-chunk
|
|
##############################################################
|
|
subchunkname, = struct.unpack("4s", data.read(4))
|
|
subchunklen, = struct.unpack(">h", data.read(2))
|
|
accumulate_i += subchunklen + 6
|
|
if subchunkname != 'TMAP':
|
|
tobj.pprint("---------- SURF: BLOK: %s: block aborting" % subchunkname)
|
|
return {}, ""
|
|
tobj.pprint ("---------- TMAP")
|
|
i = 0
|
|
while(i < subchunklen): # -----------left 6----------------------- loop on header parameters
|
|
sub2chunkname, = struct.unpack("4s", data.read(4))
|
|
sub2chunklen, = struct.unpack(">h", data.read(2))
|
|
i = i + 6 + sub2chunklen
|
|
if sub2chunkname == "CNTR":
|
|
tobj.pprint("------------ CNTR")
|
|
x, y, z = struct.unpack(">fff", data.read(12))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['CNTR'] = [x, y, z]
|
|
sub2chunklen -= (12+env_size)
|
|
elif sub2chunkname == "SIZE":
|
|
tobj.pprint("------------ SIZE")
|
|
x, y, z = struct.unpack(">fff", data.read(12))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['SIZE'] = [x, y, z]
|
|
sub2chunklen -= (12+env_size)
|
|
elif sub2chunkname == "ROTA":
|
|
tobj.pprint("------------ ROTA")
|
|
x, y, z = struct.unpack(">fff", data.read(12))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['ROTA'] = [x, y, z]
|
|
sub2chunklen -= (12+env_size)
|
|
elif sub2chunkname == "CSYS":
|
|
tobj.pprint("------------ CSYS")
|
|
ena, = struct.unpack(">h", data.read(2))
|
|
my_dict['CSYS'] = ena
|
|
sub2chunklen -= 2
|
|
else: # Misc Chunks
|
|
tobj.pprint("------------ SURF: BLOK: TMAP: %s: skipping" % sub2chunkname)
|
|
if sub2chunklen > 0:
|
|
discard = data.read(sub2chunklen)
|
|
#end loop on blok attributes subchunks
|
|
##############################################################
|
|
# ok, now other attributes without sub_chunks
|
|
##############################################################
|
|
while(accumulate_i < lenght): # ---------------------------------- loop on header parameters: lenght has already stripped the 6 bypes header
|
|
subchunkname, = struct.unpack("4s", data.read(4))
|
|
subchunklen, = struct.unpack(">H", data.read(2))
|
|
accumulate_i = accumulate_i + 6 + subchunklen
|
|
if subchunkname == "PROJ":
|
|
tobj.pprint("---------- PROJ")
|
|
p, = struct.unpack(">h", data.read(2))
|
|
my_dict['PROJ'] = p
|
|
subchunklen -= 2
|
|
elif subchunkname == "AXIS":
|
|
tobj.pprint("---------- AXIS")
|
|
a, = struct.unpack(">h", data.read(2))
|
|
my_dict['MAJAXIS'] = a
|
|
subchunklen -= 2
|
|
elif subchunkname == "IMAG":
|
|
tobj.pprint("---------- IMAG")
|
|
i, i_size = read_vx(data)
|
|
my_dict['IMAG'] = i
|
|
subchunklen -= i_size
|
|
elif subchunkname == "WRAP":
|
|
tobj.pprint("---------- WRAP")
|
|
ww, wh = struct.unpack(">hh", data.read(4))
|
|
#reduce width and height to just 1 parameter for both
|
|
my_dict['WRAP'] = max([ww,wh])
|
|
#my_dict['WRAPWIDTH'] = ww
|
|
#my_dict['WRAPHEIGHT'] = wh
|
|
subchunklen -= 4
|
|
elif subchunkname == "WRPW":
|
|
tobj.pprint("---------- WRPW")
|
|
w, = struct.unpack(">f", data.read(4))
|
|
my_dict['WRPW'] = w
|
|
envelope, env_size = read_vx(data)
|
|
subchunklen -= (env_size+4)
|
|
elif subchunkname == "WRPH":
|
|
tobj.pprint("---------- WRPH")
|
|
w, = struct.unpack(">f", data.read(4))
|
|
my_dict['WRPH'] = w
|
|
envelope, env_size = read_vx(data)
|
|
subchunklen -= (env_size+4)
|
|
elif subchunkname == "VMAP":
|
|
tobj.pprint("---------- VMAP")
|
|
vmp, i = read_name(data)
|
|
my_dict['VMAP'] = vmp
|
|
my_uvname = vmp
|
|
subchunklen -= i
|
|
else: # Misc Chunks
|
|
tobj.pprint("---------- SURF: BLOK: %s: skipping" % subchunkname)
|
|
if subchunklen > 0:
|
|
discard = data.read(subchunklen)
|
|
#end loop on blok subchunks
|
|
return my_dict, my_uvname
|
|
|
|
|
|
# =====================
|
|
# === Read Surfaces ===
|
|
# =====================
|
|
def read_surfs(lwochunk, surf_list, tag_list):
|
|
my_dict = {}
|
|
data = cStringIO.StringIO(lwochunk.read())
|
|
surf_name, i = read_name(data)
|
|
parent_name, j = read_name(data)
|
|
i += j
|
|
if (surf_name == "") or not(surf_name in tag_list):
|
|
tobj.pprint ("Reading SURF: Actually empty surf name not allowed. Skipping")
|
|
return {}
|
|
if (parent_name != ""):
|
|
parent_index = [x['NAME'] for x in surf_list].count(parent_name)
|
|
if parent_index >0:
|
|
my_dict = surf_list[parent_index-1]
|
|
my_dict['NAME'] = surf_name
|
|
tobj.pprint ("Surface data for TAG %s" % surf_name)
|
|
while(i < lwochunk.chunksize):
|
|
subchunkname, = struct.unpack("4s", data.read(4))
|
|
subchunklen, = struct.unpack(">H", data.read(2))
|
|
i = i + 6 + subchunklen #6 bytes subchunk header
|
|
if subchunkname == "COLR": #color: mapped on color
|
|
tobj.pprint("-------- COLR")
|
|
r, g, b = struct.unpack(">fff", data.read(12))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['COLR'] = [r, g, b]
|
|
subchunklen -= (12+env_size)
|
|
elif subchunkname == "DIFF": #diffusion: mapped on reflection (diffuse shader)
|
|
tobj.pprint("-------- DIFF")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['DIFF'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "SPEC": #specularity: mapped to specularity (spec shader)
|
|
tobj.pprint("-------- SPEC")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['SPEC'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "REFL": #reflection: mapped on raymirror
|
|
tobj.pprint("-------- REFL")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['REFL'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "TRNL": #translucency: mapped on same param
|
|
tobj.pprint("-------- TRNL")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['TRNL'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "GLOS": #glossiness: mapped on specularity hardness (spec shader)
|
|
tobj.pprint("-------- GLOS")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['GLOS'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "TRAN": #transparency: inverted and mapped on alpha channel
|
|
tobj.pprint("-------- TRAN")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['TRAN'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "LUMI": #luminosity: mapped on emit channel
|
|
tobj.pprint("-------- LUMI")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['LUMI'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "GVAL": #glow: mapped on add channel
|
|
tobj.pprint("-------- GVAL")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['GVAL'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "SMAN": #smoothing angle
|
|
tobj.pprint("-------- SMAN")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
my_dict['SMAN'] = s
|
|
subchunklen -= 4
|
|
elif subchunkname == "SIDE": #double sided?
|
|
tobj.pprint("-------- SIDE") #if 1 side do not define key
|
|
s, = struct.unpack(">H", data.read(2))
|
|
if s == 3:
|
|
my_dict['SIDE'] = s
|
|
subchunklen -= 2
|
|
elif subchunkname == "RIND": #Refraction: mapped on IOR
|
|
tobj.pprint("-------- RIND")
|
|
s, = struct.unpack(">f", data.read(4))
|
|
envelope, env_size = read_vx(data)
|
|
my_dict['RIND'] = s
|
|
subchunklen -= (4+env_size)
|
|
elif subchunkname == "BLOK": #blocks
|
|
tobj.pprint("-------- BLOK")
|
|
rr, uvname = read_surfblok(data.read(subchunklen))
|
|
#paranoia setting: preventing adding an empty dict
|
|
if rr != {}:
|
|
if not(my_dict.has_key('BLOK')):
|
|
my_dict['BLOK'] = [rr]
|
|
else:
|
|
my_dict['BLOK'].append(rr)
|
|
if uvname != "":
|
|
my_dict['UVNAME'] = uvname #theoretically there could be a number of them: only one used per surf
|
|
subchunklen = 0 #force ending
|
|
else: # Misc Chunks
|
|
tobj.pprint("-------- SURF:%s: skipping" % subchunkname)
|
|
if subchunklen > 0:
|
|
discard = data.read(subchunklen)
|
|
#end loop on surf chunks
|
|
if my_dict.has_key('BLOK'):
|
|
my_dict['BLOK'].reverse()
|
|
return my_dict
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# ===========================================================
|
|
# === Generation Routines ===================================
|
|
# ===========================================================
|
|
# ==================================================
|
|
# === Compute vector distance between two points ===
|
|
# ==================================================
|
|
def dist_vector (head, tail): #vector from head to tail
|
|
return Blender.Mathutils.Vector([head[0] - tail[0], head[1] - tail[1], head[2] - tail[2]])
|
|
|
|
|
|
# ================
|
|
# === Find Ear ===
|
|
# ================
|
|
def find_ear(normal, list_dict, verts, face):
|
|
nv = len(list_dict['MF'])
|
|
#looping through vertices trying to find an ear
|
|
#most likely in case of panic
|
|
mlc = 0
|
|
mla = 1
|
|
mlb = 2
|
|
|
|
for c in range(nv):
|
|
a = (c+1) % nv; b = (a+1) % nv
|
|
|
|
if list_dict['P'][a] > 0.0: #we have to start from a convex vertex
|
|
#if (list_dict['P'][a] > 0.0) and (list_dict['P'][b] <= 0.0): #we have to start from a convex vertex
|
|
mlc = c
|
|
mla = a
|
|
mlb = b
|
|
#tobj.pprint ("## mmindex: %s, %s, %s 'P': %s, %s, %s" % (c, a, b, list_dict['P'][c],list_dict['P'][a],list_dict['P'][b]))
|
|
#tobj.pprint (" ok, this one passed")
|
|
concave = 0
|
|
concave_inside = 0
|
|
for xx in range(nv): #looking for concave vertex
|
|
if (list_dict['P'][xx] <= 0.0) and (xx != b) and (xx != c): #cannot be a: it's convex
|
|
#ok, found concave vertex
|
|
concave = 1
|
|
#a, b, c, xx are all meta-meta vertex indexes
|
|
mva = list_dict['MF'][a] #meta-vertex-index
|
|
mvb = list_dict['MF'][b]
|
|
mvc = list_dict['MF'][c]
|
|
mvxx = list_dict['MF'][xx]
|
|
va = face[mva] #vertex
|
|
vb = face[mvb]
|
|
vc = face[mvc]
|
|
vxx = face[mvxx]
|
|
|
|
#Distances
|
|
d_ac_v = list_dict['D'][c]
|
|
d_ba_v = list_dict['D'][a]
|
|
d_cb_v = dist_vector(verts[vc], verts[vb])
|
|
|
|
#distance from triangle points
|
|
d_xxa_v = dist_vector(verts[vxx], verts[va])
|
|
d_xxb_v = dist_vector(verts[vxx], verts[vb])
|
|
d_xxc_v = dist_vector(verts[vxx], verts[vc])
|
|
|
|
#normals
|
|
n_xxa_v = Blender.Mathutils.CrossVecs(d_ba_v, d_xxa_v)
|
|
n_xxb_v = Blender.Mathutils.CrossVecs(d_cb_v, d_xxb_v)
|
|
n_xxc_v = Blender.Mathutils.CrossVecs(d_ac_v, d_xxc_v)
|
|
|
|
#how are oriented the normals?
|
|
p_xxa_v = Blender.Mathutils.DotVecs(normal, n_xxa_v)
|
|
p_xxb_v = Blender.Mathutils.DotVecs(normal, n_xxb_v)
|
|
p_xxc_v = Blender.Mathutils.DotVecs(normal, n_xxc_v)
|
|
|
|
#if normals are oriented all to same directions - so it is insida
|
|
if ((p_xxa_v > 0.0) and (p_xxb_v > 0.0) and (p_xxc_v > 0.0)) or ((p_xxa_v <= 0.0) and (p_xxb_v <= 0.0) and (p_xxc_v <= 0.0)):
|
|
#print "vertex %d: concave inside" % xx
|
|
concave_inside = 1
|
|
break
|
|
#endif found a concave vertex
|
|
#end loop looking for concave vertices
|
|
if (concave == 0) or (concave_inside == 0):
|
|
#no concave vertices in polygon (should not be): return immediately
|
|
#looped all concave vertices and no one inside found
|
|
return [c, a, b]
|
|
#no convex vertex, try another one
|
|
#end loop to find a suitable base vertex for ear
|
|
#looped all candidate ears and find no-one suitable
|
|
tobj.pprint ("Reducing face: no valid ear found to reduce!")
|
|
return [mlc, mla, mlb] #uses most likely
|
|
|
|
|
|
|
|
|
|
# ====================
|
|
# === Reduce Faces ===
|
|
# ====================
|
|
# http://www-cgrl.cs.mcgill.ca/~godfried/teaching/cg-projects/97/Ian/cutting_ears.html per l'import
|
|
def reduce_face(verts, face):
|
|
nv = len (face)
|
|
if nv == 3: return [[0,1,2]] #trivial decomposition list
|
|
list_dict = {}
|
|
#meta-vertex indexes
|
|
list_dict['MF'] = range(nv) # these are meta-vertex-indexes
|
|
list_dict['D'] = [None] * nv
|
|
list_dict['X'] = [None] * nv
|
|
list_dict['P'] = [None] * nv
|
|
#list of distances
|
|
for mvi in list_dict['MF']:
|
|
#vector between two vertices
|
|
mvi_hiend = (mvi+1) % nv #last-to-first
|
|
vi_hiend = face[mvi_hiend] #vertex
|
|
vi = face[mvi]
|
|
list_dict['D'][mvi] = dist_vector(verts[vi_hiend], verts[vi])
|
|
#list of cross products - normals evaluated into vertices
|
|
for vi in range(nv):
|
|
list_dict['X'][vi] = Blender.Mathutils.CrossVecs(list_dict['D'][vi], list_dict['D'][vi-1])
|
|
my_face_normal = Blender.Mathutils.Vector([list_dict['X'][0][0], list_dict['X'][0][1], list_dict['X'][0][2]])
|
|
#list of dot products
|
|
list_dict['P'][0] = 1.0
|
|
for vi in range(1, nv):
|
|
list_dict['P'][vi] = Blender.Mathutils.DotVecs(my_face_normal, list_dict['X'][vi])
|
|
#is there at least one concave vertex?
|
|
#one_concave = reduce(lambda x, y: (x) or (y<=0.0), list_dict['P'], 0)
|
|
one_concave = reduce(lambda x, y: (x) + (y<0.0), list_dict['P'], 0)
|
|
decomposition_list = []
|
|
|
|
while 1:
|
|
if nv == 3: break
|
|
if one_concave:
|
|
#look for triangle
|
|
ct = find_ear(my_face_normal, list_dict, verts, face)
|
|
mv0 = list_dict['MF'][ct[0]] #meta-vertex-index
|
|
mv1 = list_dict['MF'][ct[1]]
|
|
mv2 = list_dict['MF'][ct[2]]
|
|
#add the triangle to output list
|
|
decomposition_list.append([mv0, mv1, mv2])
|
|
#update data structures removing remove middle vertex from list
|
|
#distances
|
|
v0 = face[mv0] #vertex
|
|
v1 = face[mv1]
|
|
v2 = face[mv2]
|
|
list_dict['D'][ct[0]] = dist_vector(verts[v2], verts[v0])
|
|
#cross products
|
|
list_dict['X'][ct[0]] = Blender.Mathutils.CrossVecs(list_dict['D'][ct[0]], list_dict['D'][ct[0]-1])
|
|
list_dict['X'][ct[2]] = Blender.Mathutils.CrossVecs(list_dict['D'][ct[2]], list_dict['D'][ct[0]])
|
|
#list of dot products
|
|
list_dict['P'][ct[0]] = Blender.Mathutils.DotVecs(my_face_normal, list_dict['X'][ct[0]])
|
|
list_dict['P'][ct[2]] = Blender.Mathutils.DotVecs(my_face_normal, list_dict['X'][ct[2]])
|
|
#physical removal
|
|
list_dict['MF'].pop(ct[1])
|
|
list_dict['D'].pop(ct[1])
|
|
list_dict['X'].pop(ct[1])
|
|
list_dict['P'].pop(ct[1])
|
|
one_concave = reduce(lambda x, y: (x) or (y<0.0), list_dict['P'], 0)
|
|
nv -=1
|
|
else: #here if no more concave vertices
|
|
if nv == 4: break #quads only if no concave vertices
|
|
decomposition_list.append([list_dict['MF'][0], list_dict['MF'][1], list_dict['MF'][2]])
|
|
#physical removal
|
|
list_dict['MF'].pop(1)
|
|
nv -=1
|
|
#end while there are more my_face to triangulate
|
|
decomposition_list.append(list_dict['MF'])
|
|
return decomposition_list
|
|
|
|
|
|
# =========================
|
|
# === Recalculate Faces ===
|
|
# =========================
|
|
# --------- this do the standard face + ptag_dict + uv-map recalc
|
|
def recalc_faces(verts, faces, polytag_dict, facesuv_dict):
|
|
# init local face list
|
|
my_faces = []
|
|
# init local uvface dict
|
|
my_facesuv = {}
|
|
for uvname in facesuv_dict:
|
|
my_facesuv[uvname] = []
|
|
replaced_faces_dict = {}
|
|
j = 0
|
|
if len(faces)==0:
|
|
return faces, polytag_dict, facesuv_dict
|
|
for i in range(len(faces)):
|
|
# i = index that spans on original faces
|
|
# j = index that spans on new faces
|
|
if not i%100 and my_meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/len(faces), "Recalculating faces")
|
|
numfaceverts=len(faces[i])
|
|
if numfaceverts < 4: #This face is a triangle or quad: more strict - it has to be a triangle
|
|
my_faces.append(faces[i]) #ok, leave it alone ....
|
|
for uvname in facesuv_dict:
|
|
my_facesuv[uvname].append(facesuv_dict[uvname][i])
|
|
replaced_faces_dict[i] = [j] #.... but change the nuber order of the face
|
|
j += 1
|
|
else: # Reduce n-sided convex polygon.
|
|
meta_faces = reduce_face(verts, faces[i]) # Indices of triangles.
|
|
this_faces = [] # list of triangles poly replacing original face
|
|
this_faces_index = []
|
|
for mf in meta_faces:
|
|
ll = len(mf)
|
|
if ll == 3: #triangle
|
|
this_faces.append([faces[i][mf[0]], faces[i][mf[1]], faces[i][mf[2]]])
|
|
else: #quads
|
|
this_faces.append([faces[i][mf[0]], faces[i][mf[1]], faces[i][mf[2]], faces[i][mf[3]]])
|
|
for uvname in facesuv_dict:
|
|
if ll == 3: #triangle
|
|
my_facesuv[uvname].append([facesuv_dict[uvname][i][mf[0]], facesuv_dict[uvname][i][mf[1]], facesuv_dict[uvname][i][mf[2]]])
|
|
else: #quads
|
|
my_facesuv[uvname].append([facesuv_dict[uvname][i][mf[0]], facesuv_dict[uvname][i][mf[1]], facesuv_dict[uvname][i][mf[2]], facesuv_dict[uvname][i][mf[3]]])
|
|
this_faces_index.append(j)
|
|
j +=1
|
|
my_faces.extend(this_faces)
|
|
replaced_faces_dict[i] = this_faces_index #face i substituted by this list of faces
|
|
#endif on face vertex number
|
|
#end loop on every face
|
|
#now we have the new faces list and a dictionary replacement.
|
|
#going for polygon tagging
|
|
my_ptag_dict = {}
|
|
for tag in polytag_dict: #for every tag group
|
|
my_ptag_dict[tag] = [] #rebuild a new entry
|
|
for poly in polytag_dict[tag]: #take every element of old face list
|
|
my_ptag_dict[tag].extend(replaced_faces_dict[poly]) #substitutes the element of new face list
|
|
return my_faces, my_ptag_dict, my_facesuv
|
|
|
|
|
|
# ========================================
|
|
# === Revert list keeping first vertex ===
|
|
# ========================================
|
|
def revert (llist):
|
|
#different flavors: the reverse one is the one that works better
|
|
#rhead = [llist[0]]
|
|
#rtail = llist[1:]
|
|
#rhead.extend(rtail)
|
|
#return rhead
|
|
#--------------
|
|
rhead=copy.deepcopy(llist)
|
|
rhead.reverse()
|
|
return rhead
|
|
#--------------
|
|
#return llist
|
|
|
|
# ====================================
|
|
# === Modified Create Blender Mesh ===
|
|
# ====================================
|
|
def my_create_mesh(complete_vertlist, complete_facelist, current_facelist, objname, not_used_faces):
|
|
#take the needed faces and update the not-used face list
|
|
vertex_map = [-1] * len(complete_vertlist)
|
|
cur_ptag_faces = []
|
|
for ff in current_facelist:
|
|
cur_face = complete_facelist[ff]
|
|
cur_ptag_faces.append(cur_face)
|
|
if not_used_faces != []: not_used_faces[ff] = -1
|
|
for vv in cur_face:
|
|
vertex_map[vv] = 1
|
|
#end loop on vertex on this face
|
|
#end loop on faces
|
|
|
|
mesh = Blender.NMesh.GetRaw()
|
|
|
|
#append vertices
|
|
jj = 0
|
|
for i in range(len(complete_vertlist)):
|
|
if vertex_map[i] == 1:
|
|
if not i%100 and my_meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/len(complete_vertlist), "Generating Verts")
|
|
x, y, z = complete_vertlist[i]
|
|
mesh.verts.append(Blender.NMesh.Vert(x, y, z))
|
|
vertex_map[i] = jj
|
|
jj += 1
|
|
#end sweep over vertices
|
|
|
|
#append faces
|
|
for i in range(len(cur_ptag_faces)):
|
|
if not i%100 and my_meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/len(cur_ptag_faces), "Generating Faces")
|
|
face = Blender.NMesh.Face()
|
|
rev_face = revert(cur_ptag_faces[i])
|
|
for vi in rev_face:
|
|
#for vi in cur_ptag_faces[i]:
|
|
index = vertex_map[vi]
|
|
face.v.append(mesh.verts[index])
|
|
#end sweep over vertices
|
|
mesh.faces.append(face)
|
|
#end sweep over faces
|
|
|
|
if not my_meshtools.overwrite_mesh_name:
|
|
objname = my_meshtools.versioned_name(objname)
|
|
Blender.NMesh.PutRaw(mesh, objname) # Name the Mesh
|
|
obj = Blender.Object.GetSelected()[0]
|
|
obj.name=objname # Name the Object
|
|
Blender.Redraw()
|
|
return obj, not_used_faces #return the created object
|
|
|
|
|
|
# ============================================
|
|
# === Set Subsurf attributes on given mesh ===
|
|
# ============================================
|
|
def set_subsurf(obj):
|
|
msh = obj.getData()
|
|
msh.setSubDivLevels([2, 2])
|
|
msh.mode |= Blender.NMesh.Modes.SUBSURF
|
|
msh.update(1)
|
|
obj.makeDisplayList()
|
|
return
|
|
|
|
|
|
# =================================
|
|
# === object size and dimension ===
|
|
# =================================
|
|
def obj_size_pos(obj):
|
|
bbox = obj.getBoundBox()
|
|
bbox_min = map(lambda *row: min(row), *bbox) #transpose & get min
|
|
bbox_max = map(lambda *row: max(row), *bbox) #transpose & get max
|
|
obj_size = (bbox_max[0]-bbox_min[0], bbox_max[1]-bbox_min[1], bbox_max[2]-bbox_min[2])
|
|
obj_pos = ( (bbox_max[0]+bbox_min[0]) / 2, (bbox_max[1]+bbox_min[1]) / 2, (bbox_max[2]+bbox_min[2]) / 2)
|
|
return (obj_size, obj_pos)
|
|
|
|
|
|
# =========================
|
|
# === Create the object ===
|
|
# =========================
|
|
def create_objects(objspec_list):
|
|
nf = len(objspec_list[3])
|
|
not_used_faces = range(nf)
|
|
ptag_dict = objspec_list[5]
|
|
obj_dict = {} #links tag names to object, used for material assignments
|
|
obj_dim_dict = {}
|
|
obj_list = [] #have it handy for parent association
|
|
middlechar = "+"
|
|
endchar = ""
|
|
if (objspec_list[6] == 1):
|
|
middlechar = endchar = "#"
|
|
for cur_tag in ptag_dict.keys():
|
|
if ptag_dict[cur_tag] != []:
|
|
cur_obj, not_used_faces= my_create_mesh(objspec_list[2], objspec_list[3], ptag_dict[cur_tag], objspec_list[0][:9]+middlechar+cur_tag[:9], not_used_faces)
|
|
if objspec_list[6] == 1:
|
|
set_subsurf(cur_obj)
|
|
obj_dict[cur_tag] = cur_obj
|
|
obj_dim_dict[cur_tag] = obj_size_pos(cur_obj)
|
|
obj_list.append(cur_obj)
|
|
#end loop on current group
|
|
#and what if some faces not used in any named PTAG? get rid of unused faces
|
|
for ff in range(nf):
|
|
tt = nf-1-ff #reverse order
|
|
if not_used_faces[tt] == -1:
|
|
not_used_faces.pop(tt)
|
|
#end sweep on unused face list
|
|
if not_used_faces != []:
|
|
cur_obj, not_used_faces = my_create_mesh(objspec_list[2], objspec_list[3], not_used_faces, objspec_list[0][:9]+middlechar+"lone", [])
|
|
#my_meshtools.create_mesh(objspec_list[2], not_used_faces, "_unk") #vert, faces, name
|
|
#cur_obj = Blender.Object.GetSelected()[0]
|
|
if objspec_list[6] == 1:
|
|
set_subsurf(cur_obj)
|
|
obj_dict["lone"] = cur_obj
|
|
obj_dim_dict["lone"] = obj_size_pos(cur_obj)
|
|
obj_list.append(cur_obj)
|
|
objspec_list[1] = obj_dict
|
|
objspec_list[4] = obj_dim_dict
|
|
scene = Blender.Scene.getCurrent () # get the current scene
|
|
ob = Blender.Object.New ('Empty', objspec_list[0]+endchar) # make empty object
|
|
scene.link (ob) # link the object into the scene
|
|
ob.makeParent(obj_list, 1, 0) # set the root for created objects (no inverse, update scene hyerarchy (slow))
|
|
Blender.Redraw()
|
|
return
|
|
|
|
|
|
# =====================
|
|
# === Load an image ===
|
|
# =====================
|
|
#extensively search for image name
|
|
def load_image(dir_part, name):
|
|
img = None
|
|
nname = Blender.sys.splitext(name)
|
|
lname = [c.lower() for c in nname]
|
|
ext_list = []
|
|
if lname[1] != nname[1]:
|
|
ext_list.append(lname[1])
|
|
ext_list.extend(['.tga', '.png', '.jpg', '.gif', '.bmp']) #order from best to worst (personal judgement) bmp last cause of nasty bug
|
|
#first round: original "case"
|
|
current = Blender.sys.join(dir_part, name)
|
|
name_list = [current]
|
|
name_list.extend([Blender.sys.makename(current, ext) for ext in ext_list])
|
|
#second round: lower "case"
|
|
if lname[0] != nname[0]:
|
|
current = Blender.sys.join(dir_part, lname[0])
|
|
name_list.extend([Blender.sys.makename(current, ext) for ext in ext_list])
|
|
for nn in name_list:
|
|
if Blender.sys.exists(nn) == 1:
|
|
break
|
|
try:
|
|
img = Blender.Image.Load(nn)
|
|
return img
|
|
except IOError:
|
|
return None
|
|
|
|
|
|
# ===========================================
|
|
# === Lookup for image index in clip_list ===
|
|
# ===========================================
|
|
def lookup_imag(clip_list,ima_id):
|
|
for ii in clip_list:
|
|
if ii['ID'] == ima_id:
|
|
if ii.has_key('XREF'):
|
|
#cross reference - recursively look for images
|
|
return lookup_imag(clip_list, ii['XREF'])
|
|
else:
|
|
return ii
|
|
return None
|
|
|
|
|
|
# ===================================================
|
|
# === Create and assign image mapping to material ===
|
|
# ===================================================
|
|
def create_blok(surf, mat, clip_list, dir_part, obj_size, obj_pos):
|
|
|
|
def output_size_ofs(size, pos, blok):
|
|
#just automate repetitive task
|
|
c_map = [0,1,2]
|
|
c_map_txt = [" X--", " -Y-", " --Z"]
|
|
if blok['MAJAXIS'] == 0:
|
|
c_map = [1,2,0]
|
|
if blok['MAJAXIS'] == 2:
|
|
c_map = [0,2,1]
|
|
tobj.pprint ("!!!axis mapping:")
|
|
for mp in c_map: tobj.pprint (c_map_txt[mp])
|
|
|
|
s = ["1.0 (Forced)"] * 3
|
|
o = ["0.0 (Forced)"] * 3
|
|
if blok['SIZE'][0] > 0.0: #paranoia controls
|
|
s[0] = "%.5f" % (size[0]/blok['SIZE'][0])
|
|
o[0] = "%.5f" % ((blok['CNTR'][0]-pos[0])/blok['SIZE'][0])
|
|
if blok['SIZE'][1] > 0.0:
|
|
s[2] = "%.5f" % (size[2]/blok['SIZE'][1])
|
|
o[2] = "%.5f" % ((blok['CNTR'][1]-pos[2])/blok['SIZE'][1])
|
|
if blok['SIZE'][2] > 0.0:
|
|
s[1] = "%.5f" % (size[1]/blok['SIZE'][2])
|
|
o[1] = "%.5f" % ((blok['CNTR'][2]-pos[1])/blok['SIZE'][2])
|
|
tobj.pprint ("!!!texture size and offsets:")
|
|
tobj.pprint (" sizeX = %s; sizeY = %s; sizeZ = %s" % (s[c_map[0]], s[c_map[1]], s[c_map[2]]))
|
|
tobj.pprint (" ofsX = %s; ofsY = %s; ofsZ = %s" % (o[c_map[0]], o[c_map[1]], o[c_map[2]]))
|
|
return
|
|
|
|
ti = 0
|
|
for blok in surf['BLOK']:
|
|
tobj.pprint ("#...................................................................#")
|
|
tobj.pprint ("# Processing texture block no.%s for surf %s" % (ti,surf['NAME']))
|
|
tobj.pprint ("#...................................................................#")
|
|
tobj.pdict (blok)
|
|
if ti > 9: break #only 8 channels 0..7 allowed for texture mapping
|
|
if not blok['ENAB']:
|
|
tobj.pprint ( "***Image is not ENABled! Quitting this block")
|
|
break
|
|
if not(blok.has_key('IMAG')):
|
|
tobj.pprint ( "***No IMAGe for this block? Quitting")
|
|
break #extract out the image index within the clip_list
|
|
tobj.pprint ("looking for image number %d" % blok['IMAG'])
|
|
ima = lookup_imag(clip_list, blok['IMAG'])
|
|
if ima == None:
|
|
tobj.pprint ( "***Block index image not within CLIP list? Quitting Block")
|
|
break #safety check (paranoia setting)
|
|
#look for images
|
|
img = load_image("",ima['NAME'])
|
|
if img == None:
|
|
tobj.pprint ( "***No image %s found: trying LWO file subdir" % ima['NAME'])
|
|
img = load_image(dir_part,ima['BASENAME'])
|
|
if img == None:
|
|
tobj.pprint ( "***No image %s found in directory %s: trying Images subdir" % (ima['BASENAME'], dir_part))
|
|
img = load_image(dir_part+Blender.sys.sep+"Images",ima['BASENAME'])
|
|
if img == None:
|
|
tobj.pprint ( "***No image %s found: trying alternate Images subdir" % ima['BASENAME'])
|
|
img = load_image(dir_part+Blender.sys.sep+".."+Blender.sys.sep+"Images",ima['BASENAME'])
|
|
if img == None:
|
|
tobj.pprint ( "***No image %s found: giving up" % ima['BASENAME'])
|
|
break
|
|
#lucky we are: we have an image
|
|
tname = str(ima['ID'])
|
|
if blok.has_key('CHAN'):
|
|
tname = tname + "+" + blok['CHAN']
|
|
newtex = Blender.Texture.New(tname)
|
|
newtex.setType('Image') # make it an image texture
|
|
newtex.image = img
|
|
#how does it extends beyond borders
|
|
if blok.has_key('WRAP'):
|
|
if (blok['WRAP'] == 3) or (blok['WRAP'] == 2):
|
|
newtex.setExtend('Extend')
|
|
elif (blok['WRAP'] == 1):
|
|
newtex.setExtend('Repeat')
|
|
elif (blok['WRAP'] == 0):
|
|
newtex.setExtend('Clip')
|
|
tobj.pprint ("generated texture %s" % tname)
|
|
|
|
blendmode_list = ['Mix',
|
|
'Subtractive',
|
|
'Difference',
|
|
'Multiply',
|
|
'Divide',
|
|
'Mix (CalcAlpha already set; try setting Stencil!',
|
|
'Texture Displacement',
|
|
'Additive']
|
|
set_blendmode = 7 #default additive
|
|
if blok.has_key('OPAC'):
|
|
set_blendmode = blok['OPAC']
|
|
if set_blendmode == 5: #transparency
|
|
newtex.imageFlags |= Blender.Texture.ImageFlags.CALCALPHA
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> Blending Mode = %s" % blendmode_list[set_blendmode])
|
|
|
|
set_dvar = 1.0
|
|
if blok.has_key('OPACVAL'):
|
|
set_dvar = blok['OPACVAL']
|
|
|
|
#MapTo is determined by CHAN parameter
|
|
mapflag = Blender.Texture.MapTo.COL #default to color
|
|
if blok.has_key('CHAN'):
|
|
if blok['CHAN'] == 'COLR':
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> Col = %.3f" % set_dvar)
|
|
if set_blendmode == 0:
|
|
surf['g_IM'] = img #do not set anything, just save image object for later assignment
|
|
if blok['CHAN'] == 'BUMP':
|
|
mapflag = Blender.Texture.MapTo.NOR
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> Nor = %.3f" % set_dvar)
|
|
if blok['CHAN'] == 'LUMI':
|
|
mapflag = Blender.Texture.MapTo.EMIT
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> DVar = %.3f" % set_dvar)
|
|
if blok['CHAN'] == 'DIFF':
|
|
mapflag = Blender.Texture.MapTo.REF
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> DVar = %.3f" % set_dvar)
|
|
if blok['CHAN'] == 'SPEC':
|
|
mapflag = Blender.Texture.MapTo.SPEC
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> DVar = %.3f" % set_dvar)
|
|
if blok['CHAN'] == 'TRAN':
|
|
mapflag = Blender.Texture.MapTo.ALPHA
|
|
tobj.pprint ("!!!Set Texture -> MapTo -> DVar = %.3f" % set_dvar)
|
|
if blok.has_key('NEGA'):
|
|
tobj.pprint ("!!!Watch-out: effect of this texture channel must be INVERTED!")
|
|
|
|
#the TexCo flag is determined by PROJ parameter
|
|
if blok.has_key('PROJ'):
|
|
if blok['PROJ'] == 0: #0 - Planar
|
|
tobj.pprint ("!!!Flat projection")
|
|
coordflag = Blender.Texture.TexCo.ORCO
|
|
output_size_ofs(obj_size, obj_pos, blok)
|
|
elif blok['PROJ'] == 1: #1 - Cylindrical
|
|
tobj.pprint ("!!!Cylindrical projection")
|
|
coordflag = Blender.Texture.TexCo.ORCO
|
|
output_size_ofs(obj_size, obj_pos, blok)
|
|
elif blok['PROJ'] == 2: #2 - Spherical
|
|
tobj.pprint ("!!!Spherical projection")
|
|
coordflag = Blender.Texture.TexCo.ORCO
|
|
output_size_ofs(obj_size, obj_pos, blok)
|
|
elif blok['PROJ'] == 3: #3 - Cubic
|
|
tobj.pprint ("!!!Cubic projection")
|
|
coordflag = Blender.Texture.TexCo.ORCO
|
|
output_size_ofs(obj_size, obj_pos, blok)
|
|
elif blok['PROJ'] == 4: #4 - Front Projection
|
|
tobj.pprint ("!!!Front projection")
|
|
coordflag = Blender.Texture.TexCo.ORCO
|
|
output_size_ofs(obj_size, obj_pos, blok)
|
|
elif blok['PROJ'] == 5: #5 - UV
|
|
tobj.pprint ("UVMapped")
|
|
coordflag = Blender.Texture.TexCo.UV
|
|
mat.setTexture(ti, newtex, coordflag, mapflag)
|
|
ti += 1
|
|
#end loop over bloks
|
|
return
|
|
|
|
|
|
|
|
|
|
# ========================================
|
|
# === Create and assign a new material ===
|
|
# ========================================
|
|
#def create_material(surf_list, ptag_dict, obj, clip_list, uv_dict, dir_part):
|
|
def create_material(clip_list, surf_list, objspec, dir_part):
|
|
if (surf_list == []) or (objspec[5] == {}) or (objspec[1] == {}):
|
|
tobj.pprint( surf_list)
|
|
tobj.pprint( objspec[5])
|
|
tobj.pprint( objspec[1])
|
|
tobj.pprint( "something getting wrong in create_material ...")
|
|
return
|
|
obj_dict = objspec[1]
|
|
obj_dim_dict = objspec[4]
|
|
ptag_dict = objspec[5]
|
|
uvcoords_dict = objspec[7]
|
|
facesuv_dict = objspec[8]
|
|
for surf in surf_list:
|
|
if (surf['NAME'] in ptag_dict.keys()):
|
|
tobj.pprint ("#-------------------------------------------------------------------#")
|
|
tobj.pprint ("Processing surface (material): %s" % surf['NAME'])
|
|
tobj.pprint ("#-------------------------------------------------------------------#")
|
|
#material set up
|
|
facelist = ptag_dict[surf['NAME']]
|
|
#bounding box and position
|
|
cur_obj = obj_dict[surf['NAME']]
|
|
obj_size = obj_dim_dict[surf['NAME']][0]
|
|
obj_pos = obj_dim_dict[surf['NAME']][1]
|
|
tobj.pprint(surf)
|
|
mat = Blender.Material.New(surf['NAME'])
|
|
if surf.has_key('COLR'):
|
|
mat.rgbCol = surf['COLR']
|
|
if surf.has_key('LUMI'):
|
|
mat.setEmit(surf['LUMI'])
|
|
if surf.has_key('GVAL'):
|
|
mat.setAdd(surf['GVAL'])
|
|
if surf.has_key('SPEC'):
|
|
mat.setSpec(surf['SPEC']) #it should be * 2 but seems to be a bit higher lwo [0.0, 1.0] - blender [0.0, 2.0]
|
|
if surf.has_key('DIFF'):
|
|
mat.setRef(surf['DIFF']) #lwo [0.0, 1.0] - blender [0.0, 1.0]
|
|
if surf.has_key('REFL'):
|
|
mat.setRayMirr(surf['REFL']) #lwo [0.0, 1.0] - blender [0.0, 1.0]
|
|
#mat.setMode('RAYMIRROR')
|
|
mat.mode |= Blender.Material.Modes.RAYMIRROR
|
|
#WARNING translucency not implemented yet check 2.36 API
|
|
#if surf.has_key('TRNL'):
|
|
#
|
|
if surf.has_key('GLOS'): #lwo [0.0, 1.0] - blender [0, 255]
|
|
glo = int(371.67 * surf['GLOS'] - 42.334) #linear mapping - seems to work better than exp mapping
|
|
if glo <32: glo = 32 #clamped to 32-255
|
|
if glo >255: glo = 255
|
|
mat.setHardness(glo)
|
|
if surf.has_key('TRAN'):
|
|
mat.setAlpha(1.0-surf['TRAN']) #lwo [0.0, 1.0] - blender [1.0, 0.0]
|
|
mat.mode |= Blender.Material.Modes.RAYTRANSP
|
|
if surf.has_key('RIND'):
|
|
s = surf['RIND']
|
|
if s < 1.0: s = 1.0
|
|
if s > 3.0: s = 3.0
|
|
mat.setIOR(s) #clipped to blender [1.0, 3.0]
|
|
mat.mode |= Blender.Material.Modes.RAYTRANSP
|
|
if surf.has_key('BLOK') and surf['BLOK'] != []:
|
|
#update the material according to texture.
|
|
create_blok(surf, mat, clip_list, dir_part, obj_size, obj_pos)
|
|
#finished setting up the material
|
|
#associate material to mesh
|
|
msh = cur_obj.getData()
|
|
mat_index = len(msh.getMaterials(1))
|
|
msh.addMaterial(mat)
|
|
msh.mode |= Blender.NMesh.Modes.AUTOSMOOTH #smooth it anyway
|
|
msh.update(1)
|
|
for f in range(len(msh.faces)):
|
|
msh.faces[f].materialIndex = mat_index
|
|
msh.faces[f].smooth = 1 #smooth it anyway
|
|
msh.faces[f].mode |= Blender.NMesh.FaceModes.TWOSIDE #set it anyway
|
|
msh.faces[f].transp = Blender.NMesh.FaceTranspModes['SOLID']
|
|
msh.faces[f].flag = Blender.NMesh.FaceTranspModes['SOLID']
|
|
if surf.has_key('SMAN'):
|
|
#not allowed mixed mode mesh (all the mesh is smoothed and all with the same angle)
|
|
#only one smoothing angle will be active! => take the max one
|
|
s = int(surf['SMAN']/3.1415926535897932384626433832795*180.0) #lwo in radians - blender in degrees
|
|
if msh.getMaxSmoothAngle() < s: msh.setMaxSmoothAngle(s)
|
|
#if surf.has_key('SIDE'):
|
|
# msh.faces[f].mode |= Blender.NMesh.FaceModes.TWOSIDE #set it anyway
|
|
if surf.has_key('TRAN') and mat.getAlpha()<1.0:
|
|
msh.faces[f].transp = Blender.NMesh.FaceTranspModes['ALPHA']
|
|
if surf.has_key('UVNAME') and facesuv_dict.has_key(surf['UVNAME']):
|
|
#assign uv-data
|
|
msh.hasFaceUV(1)
|
|
#WARNING every block could have its own uvmap set of coordinate. take only the first one
|
|
facesuv_list = facesuv_dict[surf['UVNAME']]
|
|
#print "facesuv_list: ",f , facelist[f]
|
|
rev_face = revert(facesuv_list[facelist[f]])
|
|
for vi in rev_face:
|
|
msh.faces[f].uv.append(uvcoords_dict[surf['UVNAME']][vi])
|
|
if surf.has_key('g_IM'):
|
|
msh.faces[f].mode |= Blender.NMesh.FaceModes['TEX']
|
|
msh.faces[f].image = surf['g_IM']
|
|
#end loop over faces
|
|
msh.update(1)
|
|
mat_index += 1
|
|
#end if exist faces ib this object belonging to surf
|
|
#end loop on surfaces
|
|
return
|
|
|
|
|
|
# ======================
|
|
# === Read Faces 6.0 ===
|
|
# ======================
|
|
def read_faces_6(lwochunk):
|
|
data = cStringIO.StringIO(lwochunk.read())
|
|
faces = []
|
|
polygon_type = data.read(4)
|
|
subsurf = 0
|
|
if polygon_type != "FACE" and polygon_type != "PTCH":
|
|
tobj.pprint("No FACE/PATCH Were Found. Polygon Type: %s" % polygon_type)
|
|
return "", 2
|
|
if polygon_type == 'PTCH': subsurf = 1
|
|
i = 0
|
|
while(i < lwochunk.chunksize-4):
|
|
if not i%100 and my_meshtools.show_progress:
|
|
Blender.Window.DrawProgressBar(float(i)/lwochunk.chunksize, "Reading Faces")
|
|
facev = []
|
|
numfaceverts, = struct.unpack(">H", data.read(2))
|
|
i += 2
|
|
|
|
for j in range(numfaceverts):
|
|
index, index_size = read_vx(data)
|
|
i += index_size
|
|
facev.append(index)
|
|
faces.append(facev)
|
|
tobj.pprint("read %s faces; type of block %d (0=FACE; 1=PATCH)" % (len(faces), subsurf))
|
|
return faces, subsurf
|
|
|
|
|
|
|
|
# ===========================================================
|
|
# === Start the show and main callback ======================
|
|
# ===========================================================
|
|
|
|
def fs_callback(filename):
|
|
read(filename)
|
|
|
|
Blender.Window.FileSelector(fs_callback, "Import LWO")
|