forked from bartvdbraak/blender
195 lines
6.4 KiB
Python
195 lines
6.4 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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# <pep8 compliant>
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__author__ = "Bill L.Nieuwendorp"
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__bpydoc__ = """\
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This script Exports Lightwaves MotionDesigner format.
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The .mdd format has become quite a popular Pipeline format<br>
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for moving animations from package to package.
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Be sure not to use modifiers that change the number or order of verts in the mesh
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"""
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#Please send any fixes,updates,bugs to Slow67_at_Gmail.com or cbarton_at_metavr.com
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#Bill Niewuendorp
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# ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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import bpy
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import Mathutils
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from struct import pack
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def zero_file(filepath):
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'''
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If a file fails, this replaces it with 1 char, better not remove it?
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'''
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file = open(filepath, 'w')
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file.write('\n') # apparently macosx needs some data in a blank file?
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file.close()
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def check_vertcount(mesh, vertcount):
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'''
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check and make sure the vertcount is consistent throughout the frame range
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'''
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if len(mesh.verts) != vertcount:
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raise Exception('Error, number of verts has changed during animation, cannot export')
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f.close()
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zero_file(filepath)
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return
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def write(filename, sce, ob, PREF_STARTFRAME, PREF_ENDFRAME, PREF_FPS):
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"""
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Blender.Window.WaitCursor(1)
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mesh_orig = Mesh.New()
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mesh_orig.getFromObject(ob.name)
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"""
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bpy.ops.object.mode_set(mode='OBJECT')
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orig_frame = sce.current_frame
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sce.set_frame(PREF_STARTFRAME)
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me = ob.create_mesh(True, 'PREVIEW')
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#Flip y and z
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mat_flip = Mathutils.Matrix(\
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[1.0, 0.0, 0.0, 0.0],\
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[0.0, 0.0, 1.0, 0.0],\
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[0.0, 1.0, 0.0, 0.0],\
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[0.0, 0.0, 0.0, 1.0],\
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)
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numverts = len(me.verts)
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numframes = PREF_ENDFRAME - PREF_STARTFRAME + 1
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PREF_FPS = float(PREF_FPS)
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f = open(filename, 'wb') #no Errors yet:Safe to create file
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# Write the header
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f.write(pack(">2i", numframes, numverts))
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# Write the frame times (should we use the time IPO??)
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f.write(pack(">%df" % (numframes), *[frame / PREF_FPS for frame in range(numframes)])) # seconds
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#rest frame needed to keep frames in sync
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"""
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Blender.Set('curframe', PREF_STARTFRAME)
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me_tmp.getFromObject(ob.name)
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"""
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check_vertcount(me, numverts)
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me.transform(mat_flip * ob.matrix)
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f.write(pack(">%df" % (numverts * 3), *[axis for v in me.verts for axis in v.co]))
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for frame in range(PREF_STARTFRAME, PREF_ENDFRAME + 1):#in order to start at desired frame
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"""
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Blender.Set('curframe', frame)
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me_tmp.getFromObject(ob.name)
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"""
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sce.set_frame(frame)
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me = ob.create_mesh(True, 'PREVIEW')
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check_vertcount(me, numverts)
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me.transform(mat_flip * ob.matrix)
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# Write the vertex data
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f.write(pack(">%df" % (numverts * 3), *[axis for v in me.verts for axis in v.co]))
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"""
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me_tmp.verts= None
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"""
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f.close()
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print('MDD Exported: %s frames:%d\n' % (filename, numframes - 1))
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"""
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Blender.Window.WaitCursor(0)
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Blender.Set('curframe', orig_frame)
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"""
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sce.set_frame(orig_frame)
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from bpy.props import *
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class ExportMDD(bpy.types.Operator):
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'''Animated mesh to MDD vertex keyframe file.'''
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bl_idname = "export.mdd"
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bl_label = "Export MDD"
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# get first scene to get min and max properties for frames, fps
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minframe = 1
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maxframe = 300000
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minfps = 1
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maxfps = 120
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# List of operator properties, the attributes will be assigned
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# to the class instance from the operator settings before calling.
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path = StringProperty(name="File Path", description="File path used for exporting the MDD file", maxlen=1024)
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check_existing = BoolProperty(name="Check Existing", description="Check and warn on overwriting existing files", default=True, options={'HIDDEN'})
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fps = IntProperty(name="Frames Per Second", description="Number of frames/second", min=minfps, max=maxfps, default=25)
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start_frame = IntProperty(name="Start Frame", description="Start frame for baking", min=minframe, max=maxframe, default=1)
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end_frame = IntProperty(name="End Frame", description="End frame for baking", min=minframe, max=maxframe, default=250)
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def poll(self, 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.path:
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raise Exception("filename not set")
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write(self.properties.path, context.scene, context.active_object,
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self.properties.start_frame, self.properties.end_frame, self.properties.fps)
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return {'FINISHED'}
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def invoke(self, context, event):
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wm = context.manager
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wm.add_fileselect(self)
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return {'RUNNING_MODAL'}
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bpy.types.register(ExportMDD)
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def menu_func(self, context):
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default_path = bpy.data.filename.replace(".blend", ".mdd")
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self.layout.operator(ExportMDD.bl_idname, text="Vertex Keyframe Animation (.mdd)...").path = default_path
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bpy.types.INFO_MT_file_export.append(menu_func)
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if __name__ == '__main__':
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bpy.ops.export.mdd(path="/tmp/test.mdd")
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