forked from bartvdbraak/blender
141 lines
4.2 KiB
Python
141 lines
4.2 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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# <pep8 compliant>
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# mdd importer by Bill L.Nieuwendorp
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# conversion to blender 2.5: Ivo Grigull (loolarge)
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#
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# Warning if the vertex order or vertex count differs from the
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# origonal model the mdd was Baked out from their will be Strange
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# behavior
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#
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# vertex animation to ShapeKeys with ipo and gives the frame a value of 1.0
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# A modifier to read mdd files would be Ideal but thats for another day :)
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#
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# Please send any fixes,updates,bugs to Slow67_at_Gmail.com
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# Bill Niewuendorp
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import bpy
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from struct import unpack
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def mdd_import(filepath, ob, scene, PREF_START_FRAME=0, PREF_JUMP=1):
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print('\n\nimporting mdd "%s"' % filepath)
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bpy.ops.object.mode_set(mode='OBJECT')
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file = open(filepath, 'rb')
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frames, points = unpack(">2i", file.read(8))
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time = unpack((">%df" % frames), file.read(frames * 4))
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print('\tpoints:%d frames:%d' % (points, frames))
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# If target object doesn't have Basis shape key, create it.
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try:
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num_keys = len(ob.data.shape_keys.keys)
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except:
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basis = ob.add_shape_key()
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basis.name = "Basis"
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ob.data.update()
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scene.frame_current = PREF_START_FRAME
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def UpdateMesh(ob, fr):
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# Insert new shape key
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new_shapekey = ob.add_shape_key()
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new_shapekey.name = ("frame_%.4d" % fr)
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new_shapekey_name = new_shapekey.name
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ob.active_shape_key_index = len(ob.data.shape_keys.keys)-1
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index = len(ob.data.shape_keys.keys)-1
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ob.show_shape_key = True
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verts = ob.data.shape_keys.keys[len(ob.data.shape_keys.keys)-1].data
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for v in verts: # 12 is the size of 3 floats
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v.co[:] = unpack('>3f', file.read(12))
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#me.update()
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ob.show_shape_key = False
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# insert keyframes
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shape_keys = ob.data.shape_keys
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scene.frame_current -= 1
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ob.data.shape_keys.keys[index].value = 0.0
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shape_keys.keys[len(ob.data.shape_keys.keys)-1].keyframe_insert("value")
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scene.frame_current += 1
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ob.data.shape_keys.keys[index].value = 1.0
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shape_keys.keys[len(ob.data.shape_keys.keys)-1].keyframe_insert("value")
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scene.frame_current += 1
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ob.data.shape_keys.keys[index].value = 0.0
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shape_keys.keys[len(ob.data.shape_keys.keys)-1].keyframe_insert("value")
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ob.data.update()
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for i in range(frames):
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UpdateMesh(ob, i)
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from bpy.props import *
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from io_utils import ImportHelper
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class importMDD(bpy.types.Operator, ImportHelper):
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'''Import MDD vertex keyframe file to shape keys'''
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bl_idname = "import_shape.mdd"
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bl_label = "Import MDD"
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filename_ext = ".mdd"
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frame_start = IntProperty(name="Start Frame", description="Start frame for inserting animation", min=-300000, max=300000, default=0)
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@classmethod
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def poll(cls, context):
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ob = context.active_object
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return (ob and ob.type == 'MESH')
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def execute(self, context):
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if not self.properties.filepath:
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raise Exception("filename not set")
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mdd_import(self.properties.filepath, bpy.context.active_object, context.scene, self.properties.frame_start, 1)
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return {'FINISHED'}
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def menu_func(self, context):
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self.layout.operator(importMDD.bl_idname, text="Lightwave Point Cache (.mdd)")
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def register():
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bpy.types.INFO_MT_file_import.append(menu_func)
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def unregister():
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bpy.types.INFO_MT_file_import.remove(menu_func)
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if __name__ == "__main__":
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register()
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