forked from bartvdbraak/blender
6d9c02be4c
- Fixes by Jean-Michel Soler: mod_ai2obj.py, mod_svg2obj.py; - Fixes by Campbell Barton: obj_import.py; - Small fix to mod_meshtools.py (fixes bug #1605: http://projects.blender.org/tracker/?func=detail&atid=125&aid=1605&group_id=9); - Updates by Jean-Baptiste (Jiba) to his blender2cal3d.py; - Updates to all his import / export scripts (added doc data) by Anthony D'Agostino; - Update to off_import: support for uv data, by Arne Schmitz. BPython: - Removed Object.get and .getSelected (deprecated long ago, we use .Get and .GetSelected) -- fixes #1861: http://projects.blender.org/tracker/?func=detail&atid=125&aid=1861&group_id=9 - Applied patch by Michael Reimpell: quat.c - fix for wrong initialization with newQuaternionObject; Mathutils documentation improvements. - Stani reported a wrong return msg in IpoCurve.Get (that is unimplemented). Thanks to all coders mentioned above!
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, mod_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 mod_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 mod_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 mod_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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mod_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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mod_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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