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# ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
# <pep8 compliant>
# mdd importer by Bill L.Nieuwendorp
# conversion to blender 2.5: Ivo Grigull (loolarge)
#
# Warning if the vertex order or vertex count differs from the
# origonal model the mdd was Baked out from their will be Strange
# behavior
#
# vertex animation to ShapeKeys with ipo and gives the frame a value of 1.0
# A modifier to read mdd files would be Ideal but thats for another day :)
#
# Please send any fixes,updates,bugs to Slow67_at_Gmail.com
# Bill Niewuendorp
import bpy
from struct import unpack
def mdd_import(filepath, ob, scene, PREF_START_FRAME=0, PREF_JUMP=1):
print('\n\nimporting mdd "%s"' % filepath)
bpy.ops.object.mode_set(mode='OBJECT')
file = open(filepath, 'rb')
frames, points = unpack(">2i", file.read(8))
time = unpack((">%df" % frames), file.read(frames * 4))
print('\tpoints:%d frames:%d' % (points, frames))
# If target object doesn't have Basis shape key, create it.
try:
num_keys = len(ob.data.shape_keys.keys)
except:
basis = ob.add_shape_key()
basis.name = "Basis"
ob.data.update()
scene.frame_current = PREF_START_FRAME
def UpdateMesh(ob, fr):
# Insert new shape key
new_shapekey = ob.add_shape_key()
new_shapekey.name = ("frame_%.4d" % fr)
new_shapekey_name = new_shapekey.name
ob.active_shape_key_index = len(ob.data.shape_keys.keys)-1
index = len(ob.data.shape_keys.keys)-1
ob.shape_key_lock = True
verts = ob.data.shape_keys.keys[len(ob.data.shape_keys.keys)-1].data
for v in verts: # 12 is the size of 3 floats
v.co[:] = unpack('>3f', file.read(12))
#me.update()
ob.shape_key_lock = False
# insert keyframes
shape_keys = ob.data.shape_keys
scene.frame_current -= 1
ob.data.shape_keys.keys[index].value = 0.0
shape_keys.keys[len(ob.data.shape_keys.keys)-1].keyframe_insert("value")
scene.frame_current += 1
ob.data.shape_keys.keys[index].value = 1.0
shape_keys.keys[len(ob.data.shape_keys.keys)-1].keyframe_insert("value")
scene.frame_current += 1
ob.data.shape_keys.keys[index].value = 0.0
shape_keys.keys[len(ob.data.shape_keys.keys)-1].keyframe_insert("value")
ob.data.update()
for i in range(frames):
UpdateMesh(ob, i)
from bpy.props import *
class importMDD(bpy.types.Operator):
'''Import MDD vertex keyframe file to shape keys'''
bl_idname = "import_shape.mdd"
bl_label = "Import 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.
filepath = StringProperty(name="File Path", description="Filepath used for importing the MDD file", maxlen=1024)
#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 inserting animation", min=minframe, max=maxframe, default=0)
def poll(self, context):
ob = context.active_object
return (ob and ob.type == 'MESH')
def execute(self, context):
if not self.properties.filepath:
raise Exception("filename not set")
mdd_import(self.properties.filepath, bpy.context.active_object, context.scene, self.properties.frame_start, 1)
return {'FINISHED'}
def invoke(self, context, event):
wm = context.manager
wm.add_fileselect(self)
return {'RUNNING_MODAL'}
def menu_func(self, context):
self.layout.operator(importMDD.bl_idname, text="Lightwave Point Cache (.mdd)")
def register():
bpy.types.INFO_MT_file_import.append(menu_func)
def unregister():
bpy.types.INFO_MT_file_import.remove(menu_func)
if __name__ == "__main__":
register()
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