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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE 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 load(operator, context, filepath, frame_start=0, frame_step=1):
scene = context.scene
obj = context.object
print('\n\nimporting mdd %r' % filepath)
if bpy.ops.object.mode_set.poll():
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))
print('\tstart frame:%d step:%d' % (frame_start, frame_step))
# If target object doesn't have Basis shape key, create it.
if not obj.data.shape_keys:
basis = obj.shape_key_add()
basis.name = "Basis"
obj.data.update()
scene.frame_current = frame_start
def UpdateMesh(ob, fr, step):
# Insert new shape key
new_shapekey = obj.shape_key_add()
new_shapekey.name = ("frame_%.4d" % fr)
obj.active_shape_key_index = len(obj.data.shape_keys.key_blocks) - 1
index = len(obj.data.shape_keys.key_blocks) - 1
obj.show_only_shape_key = True
verts = obj.data.shape_keys.key_blocks[len(obj.data.shape_keys.key_blocks) - 1].data
for v in verts: # 12 is the size of 3 floats
v.co[:] = unpack('>3f', file.read(12))
# me.update()
obj.show_only_shape_key = False
# insert keyframes
shape_keys = obj.data.shape_keys
scene.frame_current -= step
obj.data.shape_keys.key_blocks[index].value = 0.0
shape_keys.key_blocks[len(obj.data.shape_keys.key_blocks) - 1].keyframe_insert("value")
scene.frame_current += step
obj.data.shape_keys.key_blocks[index].value = 1.0
shape_keys.key_blocks[len(obj.data.shape_keys.key_blocks) - 1].keyframe_insert("value")
scene.frame_current += step
obj.data.shape_keys.key_blocks[index].value = 0.0
shape_keys.key_blocks[len(obj.data.shape_keys.key_blocks) - 1].keyframe_insert("value")
obj.data.update()
for i in range(frames):
UpdateMesh(obj, i, frame_step)
return {'FINISHED'}
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