forked from bartvdbraak/blender
ad579abf00
Final (?) updates for 2.40 :) : - Bob Holcomb sent a better version of his 3ds importer - Added doc info to bvh2arm: links to doc and mocap tute from author Jean-Baptiste Perin - Alessandro Pirovano improved the Lightwave importer. - Mikael Lagre updated the collada scripts (fixed a bug with camera lens value) - Adam Saltsman improved the wings importer (ongoing work with his pal Toastie). - Anthony D'Agostino GPL'd his scripts (used Blender's BAL license previously) Thanks to all script authors for their work, interest and kindness. Again, Tom (LetterRip) has played an important part in this, thanks and welcome :).
324 lines
10 KiB
Python
324 lines
10 KiB
Python
#!BPY
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"""
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Name: 'Wings3D (.wings)...'
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Blender: 232
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Group: 'Import'
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Tooltip: 'Import Wings3D File Format (.wings)'
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"""
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__author__ = "Anthony D'Agostino (Scorpius)"
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__url__ = ("blender", "elysiun",
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"Author's homepage, http://www.redrival.com/scorpius",
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"Wings 3D, http://www.wings3d.com")
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__version__ = "Part of IOSuite 0.5"
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__bpydoc__ = """\
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This script imports Wings3D files to Blender.
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Wings3D is an open source polygon modeler written in Erlang, a
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language similar to Lisp. The .wings file format is a binary
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representation of erlang terms (lists, tuples, atoms, etc.) and is
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compressed with zlib.
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Usage:<br>
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Execute this script from the "File->Import" menu and choose a Wings file
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to open.
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Supported:<br>
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Meshes only. Not guaranteed to work in all situations.
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Missing:<br>
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Materials, UV Coordinates, and Vertex Color info will be ignored.
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Known issues:<br>
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Triangulation of convex polygons works fine, and uses a very simple
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fanning algorithm. Convex polygons (i.e., shaped like the letter "U")
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require a different algorithm, and will be triagulated incorrectly.
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Notes:<br>
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Last tested with Wings 3D 0.98.25 & Blender 2.35a.
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"""
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# $Id$
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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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# | Feb 19, 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 Wings3D File Format (*.wings) |
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# +---------------------------------------------------------+
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import Blender, meshtools
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import struct, time, sys, os, zlib, cStringIO
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# ==============================================
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# === Read The 'Header' Common To All Chunks ===
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# ==============================================
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def read_chunkheader(data):
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data.read(2) #version, tag = struct.unpack(">BB", data.read(2))
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misc, namelen = struct.unpack(">BH", data.read(3))
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name = data.read(namelen)
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return name
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# ==============================
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# === Read The Material Mode ===
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# ==============================
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def read_mode(data):
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data.read(5) # BL
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read_chunkheader(data) # "mode"
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misc, namelen = struct.unpack(">BH", data.read(3))
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data.read(namelen)
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data.read(1) # 6A
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# =======================
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# === Read Hard Edges ===
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# =======================
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def read_hardedges(data):
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tag = data.read(1)
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if tag == '\x6A':
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return # There are no hard edges
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elif tag == '\x6B':
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numhardedges, = struct.unpack(">H", data.read(2))
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print "numhardedges:", numhardedges
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for i in range(numhardedges):
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data.read(1)
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elif tag == '\x6C':
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numhardedges, = struct.unpack(">L", data.read(4))
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print "numhardedges:", numhardedges
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for i in range(numhardedges):
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misc = data.read(1)
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if misc == '\x61': # next value is stored as a byte
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data.read(1)
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elif misc == '\x62': # next value is stored as a long
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data.read(4)
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data.read(1) # 6A
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else:
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print tag
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# ==================
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# === Read Edges ===
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# ==================
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def read_edges(data):
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misc, numedges = struct.unpack(">BL", data.read(5))
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edge_table = {} # the winged-edge table
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for i in range(numedges):
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if not i%100 and meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/numedges, "Reading Edges")
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misc, etype = struct.unpack(">BL", data.read(5))
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if etype == 2: # Vertex Colors
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data.read(10) # or read_chunkheader(data) # "color"
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data.read(5) # BL
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r1,g1,b1,r2,g2,b2 = struct.unpack(">dddddd", data.read(48))
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#print "%3d %3d %3d | %3d %3d %3d" % (r1*255,g1*255,b1*255,r2*255,g2*255,b2*255),
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#print "%f %f %f | %f %f %f" % (r1, g1, b1, r2, g2, b2)
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data.read(9) # or read_chunkheader(data) # "edge"
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edge = [] # the eight entries for this edge
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for e in range(8): # Sv Ev | Lf Rf | Lp Ls | Rp Rs
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misc = data.read(1)
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if misc == '\x61': # next value is stored as a byte
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entry, = struct.unpack(">B", data.read(1))
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edge.append(entry)
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elif misc == '\x62': # next value is stored as a long
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entry, = struct.unpack(">L", data.read(4))
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edge.append(entry)
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edge_table[i] = edge
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data.read(1) # 6A
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data.read(1) # 6A
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return edge_table
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# ==================
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# === Read Faces ===
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# ==================
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def read_faces(data):
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misc, numfaces = struct.unpack(">BL", data.read(5))
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for i in range(numfaces):
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if not i%100 and meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/numfaces, "Reading Faces")
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if data.read(1) == '\x6C': # a material follows
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data.read(4)
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read_chunkheader(data)
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misc, namelen = struct.unpack(">BH", data.read(3))
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materialname = data.read(namelen)
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data.read(1)
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data.read(1) # 6A
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return numfaces
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# ==================
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# === Read Verts ===
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# ==================
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def read_verts(data):
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misc, numverts = struct.unpack(">BL", data.read(5))
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verts = [] # a list of verts
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for i in range(numverts):
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if not i%100 and meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/numverts, "Reading Verts")
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data.read(10)
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x, y, z = struct.unpack(">ddd", data.read(24)) # double precision
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verts.append((x, -z, y))
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data.read(1) # 6A
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data.read(1) # 6A
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return verts
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# =======================
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# === Make Face Table ===
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# =======================
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def make_face_table(edge_table): # For Wings
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face_table = {}
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for i in range(len(edge_table)):
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Lf = edge_table[i][2]
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Rf = edge_table[i][3]
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face_table[Lf] = i
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face_table[Rf] = i
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return face_table
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# =======================
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# === Make Vert Table ===
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# =======================
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def make_vert_table(edge_table): # For Wings
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vert_table = {}
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for i in range(len(edge_table)):
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Sv = edge_table[i][0]
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Ev = edge_table[i][1]
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vert_table[Sv] = i
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vert_table[Ev] = i
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return vert_table
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# ==================
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# === Make Faces ===
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# ==================
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def make_faces(edge_table): # For Wings
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face_table = make_face_table(edge_table)
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faces=[]
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for i in range(len(face_table)):
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face_verts = []
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current_edge = face_table[i]
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while(1):
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if i == edge_table[current_edge][3]:
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next_edge = edge_table[current_edge][7] # Right successor edge
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next_vert = edge_table[current_edge][0]
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else:
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next_edge = edge_table[current_edge][5] # Left successor edge
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next_vert = edge_table[current_edge][1]
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face_verts.append(next_vert)
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current_edge = next_edge
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if current_edge == face_table[i]: break
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face_verts.reverse()
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faces.append(face_verts)
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return faces
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# =======================
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# === Dump Wings File ===
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# =======================
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def dump_wings(filename):
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import pprint
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start = time.clock()
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file = open(filename, "rb")
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header = file.read(15)
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fsize, = struct.unpack(">L", file.read(4)) # file_size - 19
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misc, = struct.unpack(">H", file.read(2))
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dsize, = struct.unpack(">L", file.read(4)) # uncompressed data size
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data = file.read(fsize-6)
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file.close()
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data = zlib.decompress(data)
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if dsize != len(data): print "ERROR: uncompressed size does not match."
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data = cStringIO.StringIO(data)
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print "header:", header
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print read_chunkheader(data) # === wings chunk ===
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data.read(4) # misc bytes
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misc, numobjs, = struct.unpack(">BL", data.read(5))
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print "filename:", filename
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print "numobjs :", numobjs
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for obj in range(numobjs):
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print read_chunkheader(data) # === object chunk ===
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misc, namelen = struct.unpack(">BH", data.read(3))
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objname = data.read(namelen)
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print read_chunkheader(data) # === winged chunk ===
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edge_table = read_edges(data)
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numfaces = read_faces(data)
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verts = read_verts(data)
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read_hardedges(data)
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face_table = {} # contains an incident edge
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vert_table = {} # contains an incident edge
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for i in range(len(edge_table)):
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face_table[edge_table[i][2]] = i # generate face_table
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face_table[edge_table[i][3]] = i
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vert_table[edge_table[i][0]] = i # generate vert_table
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vert_table[edge_table[i][1]] = i
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print "objname :", objname
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print "numedges:", len(edge_table)
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print "numfaces:", numfaces
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print "numverts:", len(verts)
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print
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print "<EFBFBD>"*79
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print "edge_table:"
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pprint.pprint(edge_table)
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#for i in range(len(edge_table)): print "%2d" % (i), edge_table[i]
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print
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print "face_table:"
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pprint.pprint(face_table)
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#for i in range(len(face_table)): print "%2d %2d" % (i, face_table[i])
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print
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print "vert_table:"
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pprint.pprint(vert_table)
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#for i in range(len(vert_table)): print "%2d %2d" % (i, vert_table[i])
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file.close()
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end = time.clock()
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print '\a\r',
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sys.stderr.write("\nDone in %.2f %s" % (end-start, "seconds"))
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# =========================
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# === Read Wings Format ===
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# =========================
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def read(filename):
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start = time.clock()
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file = open(filename, "rb")
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header = file.read(15)
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fsize, = struct.unpack(">L", file.read(4)) # file_size - 19
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misc, = struct.unpack(">H", file.read(2))
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dsize, = struct.unpack(">L", file.read(4)) # uncompressed data size
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data = file.read(fsize-6)
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#print file.tell(), "bytes"
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file.close()
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Blender.Window.DrawProgressBar(1.0, "Decompressing Data")
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data = zlib.decompress(data)
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data = cStringIO.StringIO(data)
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read_chunkheader(data) # wings chunk
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data.read(4) # misc bytes
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misc, numobjs = struct.unpack(">BL", data.read(5))
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message = "Successfully imported " + os.path.basename(filename) + '\n\n'
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message += "%s %8s %8s %8s\n" % ("Object".ljust(15), "faces", "edges", "verts")
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message += "%s %8s %8s %8s\n" % ("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>".ljust(15), "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>", "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>", "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>")
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for obj in range(numobjs):
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read_chunkheader(data) # object chunk
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misc, namelen = struct.unpack(">BH", data.read(3))
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objname = data.read(namelen)
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read_chunkheader(data) # winged chunk
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edge_table = read_edges(data)
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numfaces = read_faces(data)
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verts = read_verts(data)
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read_hardedges(data)
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read_mode(data)
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faces = make_faces(edge_table)
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message += "%s %8s %8s %8s\n" % (objname.ljust(15), len(faces), len(edge_table), len(verts))
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meshtools.create_mesh(verts, faces, objname)
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material = data.read()
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#for i in material[0:6]: print "%02X" % ord(i),
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#print
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Blender.Window.DrawProgressBar(1.0, "Done") # clear progressbar
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data.close()
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end = time.clock()
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seconds = "\nDone in %.2f %s" % (end-start, "seconds")
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message += seconds
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meshtools.print_boxed(message)
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def fs_callback(filename):
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read(filename)
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Blender.Window.FileSelector(fs_callback, "Import Wings3D")
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