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-rw-r--r--release/scripts/ms3d_import.py487
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diff --git a/release/scripts/ms3d_import.py b/release/scripts/ms3d_import.py
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-#!BPY
-"""
-Name: 'MilkShape3D (.ms3d)...'
-Blender: 245
-Group: 'Import'
-Tooltip: 'Import from MilkShape3D file format (.ms3d)'
-"""
-#
-# Author: Markus Ilmola
-# Email: markus.ilmola@pp.inet.fi
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#
-
-# import needed stuff
-import os.path
-import math
-from math import *
-import struct
-import Blender
-from Blender import Mathutils
-from Blender.Mathutils import *
-
-
-# trims a string by removing ending 0 and everything after it
-def uku(s):
- try:
- return s[:s.index('\0')]
- except:
- return s
-
-
-# Converts ms3d euler angles to a rotation matrix
-def RM(a):
- sy = sin(a[2])
- cy = cos(a[2])
- sp = sin(a[1])
- cp = cos(a[1])
- sr = sin(a[0])
- cr = cos(a[0])
- return Matrix([cp*cy, cp*sy, -sp], [sr*sp*cy+cr*-sy, sr*sp*sy+cr*cy, sr*cp],[cr*sp*cy+-sr*-sy, cr*sp*sy+-sr*cy, cr*cp])
-
-
-# Converts ms3d euler angles to a quaternion
-def RQ(a):
- angle = a[2] * 0.5;
- sy = sin(angle);
- cy = cos(angle);
- angle = a[1] * 0.5;
- sp = sin(angle);
- cp = cos(angle);
- angle = a[0] * 0.5;
- sr = sin(angle);
- cr = cos(angle);
- return Quaternion(cr*cp*cy+sr*sp*sy, sr*cp*cy-cr*sp*sy, cr*sp*cy+sr*cp*sy, cr*cp*sy-sr*sp*cy)
-
-
-# takes a texture filename and tries to load it
-def loadImage(path, filename):
- image = None
- try:
- image = Blender.Image.Load(os.path.abspath(filename))
- except IOError:
- print "Warning: Failed to load image: " + filename + ". Trying short path instead...\n"
- try:
- image = Blender.Image.Load(os.path.dirname(path) + "/" + os.path.basename(filename))
- except IOError:
- print "Warning: Failed to load image: " + os.path.basename(filename) + "!\n"
- return image
-
-
-# imports a ms3d file to the current scene
-def import_ms3d(path):
- # get scene
- scn = Blender.Scene.GetCurrent()
- if scn == None:
- return "No scene to import to!"
-
- # open the file
- try:
- file = open(path, 'rb')
- except IOError:
- return "Failed to open the file!"
-
- # get the file size
- file.seek(0, os.SEEK_END);
- fileSize = file.tell();
- file.seek(0, os.SEEK_SET);
-
- # read id to check if the file is a MilkShape3D file
- id = file.read(10)
- if id!="MS3D000000":
- return "The file is not a MS3D file!"
-
- # read version
- version = struct.unpack("i", file.read(4))[0]
- if version!=4:
- return "The file has invalid version!"
-
- # Create the mesh
- scn.objects.selected = []
- mesh = Blender.Mesh.New("MilkShape3D Mesh")
- meshOb = scn.objects.new(mesh)
-
- # read the number of vertices
- numVertices = struct.unpack("H", file.read(2))[0]
-
- # read vertices
- coords = []
- boneIds = []
- for i in xrange(numVertices):
- # skip flags
- file.read(1)
-
- # read coords
- coords.append(struct.unpack("fff", file.read(3*4)))
-
- # read bone ids
- boneIds.append(struct.unpack("b", file.read(1))[0])
-
- # skip refcount
- file.read(1)
-
- # add the vertices to the mesh
- mesh.verts.extend(coords)
-
- # read number of triangles
- numTriangles = struct.unpack("H", file.read(2))[0]
-
- # read triangles
- faces = []
- uvs = []
- for i in xrange(numTriangles):
- # skip flags
- file.read(2)
-
- # read indices (faces)
- faces.append(struct.unpack("HHH", file.read(3*2)))
-
- # read normals
- normals = struct.unpack("fffffffff", file.read(3*3*4))
-
- # read texture coordinates
- s = struct.unpack("fff", file.read(3*4))
- t = struct.unpack("fff", file.read(3*4))
-
- # store texture coordinates
- uvs.append([[s[0], 1-t[0]], [s[1], 1-t[1]], [s[2], 1-t[2]]])
-
- if faces[-1][2] == 0: # Cant have zero at the third index
- faces[-1] = faces[-1][1], faces[-1][2], faces[-1][0]
- uvs[-1] = uvs[-1][1], uvs[-1][2], uvs[-1][0]
-
- # skip smooth group
- file.read(1)
-
- # skip group
- file.read(1)
-
- # add the faces to the mesh
- mesh.faces.extend(faces)
-
- # set texture coordinates
- for i in xrange(numTriangles):
- mesh.faces[i].uv = [Vector(uvs[i][0]), Vector(uvs[i][1]), Vector(uvs[i][2])]
-
- # read number of groups
- numGroups = struct.unpack("H", file.read(2))[0]
-
- # read groups
- for i in xrange(numGroups):
- # skip flags
- file.read(1)
-
- # skip name
- file.read(32)
-
- # read the number of triangles in the group
- numGroupTriangles = struct.unpack("H", file.read(2))[0]
-
- # read the group triangles
- if numGroupTriangles > 0:
- triangleIndices = struct.unpack(str(numGroupTriangles) + "H", file.read(2*numGroupTriangles));
-
- # read material
- material = struct.unpack("b", file.read(1))[0]
- if material>=0:
- for j in xrange(numGroupTriangles):
- mesh.faces[triangleIndices[j]].mat = material
-
- # read the number of materials
- numMaterials = struct.unpack("H", file.read(2))[0]
-
- # read materials
- for i in xrange(numMaterials):
- # read name
- name = uku(file.read(32))
-
- # create the material
- mat = Blender.Material.New(name)
- mesh.materials += [mat]
-
- # read ambient color
- ambient = struct.unpack("ffff", file.read(4*4))[0:3]
- mat.setAmb((ambient[0]+ambient[1]+ambient[2])/3)
-
- # read diffuse color
- diffuse = struct.unpack("ffff", file.read(4*4))[0:3]
- mat.setRGBCol(diffuse)
-
- # read specular color
- specular = struct.unpack("ffff", file.read(4*4))[0:3]
- mat.setSpecCol(specular)
-
- # read emissive color
- emissive = struct.unpack("ffff", file.read(4*4))[0:3]
- mat.setEmit((emissive[0]+emissive[1]+emissive[2])/3)
-
- # read shininess
- shininess = struct.unpack("f", file.read(4))[0]
-
- # read transparency
- transparency = struct.unpack("f", file.read(4))[0]
- mat.setAlpha(transparency)
- if transparency < 1:
- mat.mode |= Blender.Material.Modes.ZTRANSP
-
- # read mode
- mode = struct.unpack("B", file.read(1))[0]
-
- # read texturemap
- texturemap = uku(file.read(128))
- if len(texturemap)>0:
- colorTexture = Blender.Texture.New(name + "_texture")
- colorTexture.setType('Image')
- colorTexture.setImage(loadImage(path, texturemap))
- mat.setTexture(0, colorTexture, Blender.Texture.TexCo.UV, Blender.Texture.MapTo.COL)
-
- # read alphamap
- alphamap = uku(file.read(128))
- if len(alphamap)>0:
- alphaTexture = Blender.Texture.New(name + "_alpha")
- alphaTexture.setType('Image')
- alphaTexture.setImage(loadImage(path, alphamap))
- mat.setTexture(1, alphaTexture, Blender.Texture.TexCo.UV, Blender.Texture.MapTo.ALPHA)
-
- # read animation
- fps = struct.unpack("f", file.read(4))[0]
- time = struct.unpack("f", file.read(4))[0]
- frames = struct.unpack("i", file.read(4))[0]
-
- # read the number of joints
- numJoints = struct.unpack("H", file.read(2))[0]
-
- # create the armature
- armature = 0
- armOb = 0
- if numJoints > 0:
- armOb = Blender.Object.New('Armature', "MilkShape3D Skeleton")
- armature = Blender.Armature.New("MilkShape3D Skeleton")
- armature.drawType = Blender.Armature.STICK
- armOb.link(armature)
- scn.objects.link(armOb)
- armOb.makeParentDeform([meshOb])
- armature.makeEditable()
-
- # read joints
- joints = []
- rotKeys = {}
- posKeys = {}
- for i in xrange(numJoints):
- # skip flags
- file.read(1)
-
- # read name
- name = uku(file.read(32))
- joints.append(name)
-
- # create the bone
- bone = Blender.Armature.Editbone()
- armature.bones[name] = bone
-
- # read parent
- parent = uku(file.read(32))
- if len(parent)>0:
- bone.parent = armature.bones[parent]
-
- # read orientation
- rot = struct.unpack("fff", file.read(3*4))
-
- # read position
- pos = struct.unpack("fff", file.read(3*4))
-
- # set head
- if bone.hasParent():
- bone.head = Vector(pos) * bone.parent.matrix + bone.parent.head
- tempM = RM(rot) * bone.parent.matrix
- tempM.transpose;
- bone.matrix = tempM
- else:
- bone.head = Vector(pos)
- bone.matrix = RM(rot)
-
- # set tail
- bvec = bone.tail - bone.head
- bvec.normalize()
- bone.tail = bone.head + 0.01 * bvec
-
- # Create vertex group for this bone
- mesh.addVertGroup(name)
- vgroup = []
- for index, v in enumerate(boneIds):
- if v==i:
- vgroup.append(index)
- mesh.assignVertsToGroup(name, vgroup, 1.0, 1)
-
- # read the number of rotation keys
- numKeyFramesRot = struct.unpack("H", file.read(2))[0]
-
- # read the number of postions keys
- numKeyFramesPos = struct.unpack("H", file.read(2))[0]
-
- # read rotation keys
- rotKeys[name] = []
- for j in xrange(numKeyFramesRot):
- # read time
- time = fps * struct.unpack("f", file.read(4))[0]
- # read data
- rotKeys[name].append([time, struct.unpack("fff", file.read(3*4))])
-
- # read position keys
- posKeys[name] = []
- for j in xrange(numKeyFramesPos):
- # read time
- time = fps * struct.unpack("f", file.read(4))[0]
- # read data
- posKeys[name].append([time, struct.unpack("fff", file.read(3*4))])
-
- # create action and pose
- action = 0
- pose = 0
- if armature!=0:
- armature.update()
- pose = armOb.getPose()
- action = armOb.getAction()
- if not action:
- action = Blender.Armature.NLA.NewAction()
- action.setActive(armOb)
-
- # create animation key frames
- for name, pbone in pose.bones.items():
- # create position keys
- for key in posKeys[name]:
- pbone.loc = Vector(key[1])
- pbone.insertKey(armOb, int(key[0]+0.5), Blender.Object.Pose.LOC, True)
-
- # create rotation keys
- for key in rotKeys[name]:
- pbone.quat = RQ(key[1])
- pbone.insertKey(armOb, int(key[0]+0.5), Blender.Object.Pose.ROT, True)
-
- # The old format ends here. If there is more data then the file is newer version
-
- # check to see if there are any comments
- if file.tell()<fileSize:
-
- # read sub version
- subVersion = struct.unpack("i", file.read(4))[0]
-
- # Is the sub version a supported one
- if subVersion==1:
-
- # Group comments
- numComments = struct.unpack("i", file.read(4))[0]
- for i in range(numComments):
- file.read(4) # index
- size = struct.unpack("i", file.read(4))[0] # comment size
- if size>0:
- print "Group comment: " + file.read(size)
-
- # Material comments
- numComments = struct.unpack("i", file.read(4))[0]
- for i in range(numComments):
- file.read(4) # index
- size = struct.unpack("i", file.read(4))[0] # comment size
- if size>0:
- print "Material comment: " + file.read(size)
-
- # Joint comments
- numComments = struct.unpack("i", file.read(4))[0]
- for i in range(numComments):
- file.read(4) # index
- size = struct.unpack("i", file.read(4))[0] # comment size
- if size>0:
- print "Joint comment: " + file.read(size)
-
- # Model comments
- numComments = struct.unpack("i", file.read(4))[0]
- for i in range(numComments):
- file.read(4) # index
- size = struct.unpack("i", file.read(4))[0] # comment size
- if size>0:
- print "Model comment: " + file.read(size)
-
- # Unknown version give a warning
- else:
- print "Warning: Unknown version!"
-
-
- # check to see if there is any extra vertex data
- if file.tell()<fileSize:
-
- # read the subversion
- subVersion = struct.unpack("i", file.read(4))[0]
-
- # is the version supported
- if subVersion==2:
- # read the extra data for each vertex
- for i in xrange(numVertices):
- # bone ids
- ids = struct.unpack("bbb", file.read(3))
- # weights
- weights = struct.unpack("BBB", file.read(3))
- # extra
- extra = struct.unpack("I", file.read(4))
- # add extra vertices with weights to deform groups
- if ids[0]>=0 or ids[1]>=0 or ids[2]>=0:
- mesh.assignVertsToGroup(joints[boneIds[i]], [i], 0.01*weights[0], 1)
- if ids[0]>=0:
- mesh.assignVertsToGroup(joints[ids[0]], [i], 0.01*weights[1], 1)
- if ids[1]>=0:
- mesh.assignVertsToGroup(joints[ids[1]], [i], 0.01*weights[2], 1)
- if ids[2]>=0:
- mesh.assignVertsToGroup(joints[ids[2]], [i], 0.01*(100-(weights[0]+weights[1]+weights[2])), 1)
-
- elif subVersion==1:
- # read extra data for each vertex
- for i in xrange(numVertices):
- # bone ids
- ids = struct.unpack("bbb", file.read(3))
- # weights
- weights = struct.unpack("BBB", file.read(3))
- # add extra vertices with weights to deform groups
- if ids[0]>=0 or ids[1]>=0 or ids[2]>=0:
- mesh.assignVertsToGroup(joints[boneIds[i]], [i], 0.01*weights[0], 1)
- if ids[0]>=0:
- mesh.assignVertsToGroup(joints[ids[0]], [i], 0.01*weights[1], 1)
- if ids[1]>=0:
- mesh.assignVertsToGroup(joints[ids[1]], [i], 0.01*weights[2], 1)
- if ids[2]>=0:
- mesh.assignVertsToGroup(joints[ids[2]], [i], 0.01*(100-(weights[0]+weights[1]+weights[2])), 1)
-
- # non supported subversion give a warning
- else:
- print "Warning: Unknown subversion!"
-
- # rest of the extra data in the file is not imported/used
-
- # refresh the view
- Blender.Redraw()
-
- # close the file
- file.close()
-
- # succes return empty error string
- return ""
-
-
-# load the model
-def fileCallback(filename):
- error = import_ms3d(filename)
- if error!="":
- Blender.Draw.PupMenu("An error occured during import: " + error + "|Not all data might have been imported succesfully.", 2)
-
-Blender.Window.FileSelector(fileCallback, 'Import')
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