1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
# ##### BEGIN GPL LICENSE BLOCK #####
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
__author__ = "Bill L.Nieuwendorp"
__bpydoc__ = """\
This script Exports Lightwaves MotionDesigner format.
The .mdd format has become quite a popular Pipeline format<br>
for moving animations from package to package.
Be sure not to use modifiers that change the number or order of verts in the mesh
"""
#Please send any fixes,updates,bugs to Slow67_at_Gmail.com or cbarton_at_metavr.com
#Bill Niewuendorp
# ***** BEGIN GPL LICENSE BLOCK *****
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ***** END GPL LICENCE BLOCK *****
import bpy
import Mathutils
from struct import pack
def zero_file(filepath):
'''
If a file fails, this replaces it with 1 char, better not remove it?
'''
file = open(filepath, 'w')
file.write('\n') # apparently macosx needs some data in a blank file?
file.close()
def check_vertcount(mesh, vertcount):
'''
check and make sure the vertcount is consistent throughout the frame range
'''
if len(mesh.verts) != vertcount:
raise Exception('Error, number of verts has changed during animation, cannot export')
f.close()
zero_file(filepath)
return
def write(filename, sce, ob, PREF_STARTFRAME, PREF_ENDFRAME, PREF_FPS):
"""
Blender.Window.WaitCursor(1)
mesh_orig = Mesh.New()
mesh_orig.getFromObject(ob.name)
"""
bpy.ops.object.mode_set(mode='OBJECT')
orig_frame = sce.frame_current
sce.set_frame(PREF_STARTFRAME)
me = ob.create_mesh(True, 'PREVIEW')
#Flip y and z
mat_flip = Mathutils.Matrix(\
[1.0, 0.0, 0.0, 0.0],\
[0.0, 0.0, 1.0, 0.0],\
[0.0, 1.0, 0.0, 0.0],\
[0.0, 0.0, 0.0, 1.0],\
)
numverts = len(me.verts)
numframes = PREF_ENDFRAME - PREF_STARTFRAME + 1
PREF_FPS = float(PREF_FPS)
f = open(filename, 'wb') #no Errors yet:Safe to create file
# Write the header
f.write(pack(">2i", numframes, numverts))
# Write the frame times (should we use the time IPO??)
f.write(pack(">%df" % (numframes), *[frame / PREF_FPS for frame in range(numframes)])) # seconds
#rest frame needed to keep frames in sync
"""
Blender.Set('curframe', PREF_STARTFRAME)
me_tmp.getFromObject(ob.name)
"""
check_vertcount(me, numverts)
me.transform(mat_flip * ob.matrix)
f.write(pack(">%df" % (numverts * 3), *[axis for v in me.verts for axis in v.co]))
for frame in range(PREF_STARTFRAME, PREF_ENDFRAME + 1):#in order to start at desired frame
"""
Blender.Set('curframe', frame)
me_tmp.getFromObject(ob.name)
"""
sce.set_frame(frame)
me = ob.create_mesh(True, 'PREVIEW')
check_vertcount(me, numverts)
me.transform(mat_flip * ob.matrix)
# Write the vertex data
f.write(pack(">%df" % (numverts * 3), *[axis for v in me.verts for axis in v.co]))
"""
me_tmp.verts= None
"""
f.close()
print('MDD Exported: %s frames:%d\n' % (filename, numframes - 1))
"""
Blender.Window.WaitCursor(0)
Blender.Set('curframe', orig_frame)
"""
sce.set_frame(orig_frame)
from bpy.props import *
class ExportMDD(bpy.types.Operator):
'''Animated mesh to MDD vertex keyframe file'''
bl_idname = "export.mdd"
bl_label = "Export MDD"
# get first scene to get min and max properties for frames, fps
minframe = 1
maxframe = 300000
minfps = 1
maxfps = 120
# List of operator properties, the attributes will be assigned
# to the class instance from the operator settings before calling.
path = StringProperty(name="File Path", description="File path used for exporting the MDD file", maxlen=1024)
check_existing = BoolProperty(name="Check Existing", description="Check and warn on overwriting existing files", default=True, options={'HIDDEN'})
fps = IntProperty(name="Frames Per Second", description="Number of frames/second", min=minfps, max=maxfps, default=25)
frame_start = IntProperty(name="Start Frame", description="Start frame for baking", min=minframe, max=maxframe, default=1)
frame_end = IntProperty(name="End Frame", description="End frame for baking", min=minframe, max=maxframe, default=250)
def poll(self, context):
ob = context.active_object
return (ob and ob.type == 'MESH')
def execute(self, context):
if not self.properties.path:
raise Exception("filename not set")
write(self.properties.path, context.scene, context.active_object,
self.properties.frame_start, self.properties.frame_end, self.properties.fps)
return {'FINISHED'}
def invoke(self, context, event):
wm = context.manager
wm.add_fileselect(self)
return {'RUNNING_MODAL'}
def menu_func(self, context):
default_path = bpy.data.filename.replace(".blend", ".mdd")
self.layout.operator(ExportMDD.bl_idname, text="Lightwave Point Cache (.mdd)").path = default_path
def register():
bpy.types.register(ExportMDD)
bpy.types.INFO_MT_file_export.append(menu_func)
def unregister():
bpy.types.unregister(ExportMDD)
bpy.types.INFO_MT_file_export.remove(menu_func)
if __name__ == "__main__":
register()
|
