forked from bartvdbraak/blender
e61c90e416
however this meant the invoke function could not modify properties for exec to use (unless it called exec directly after) since the popup for eg would re-instance the python class each time. now use the operator properties directly through rna without an automatic copy. now an operator attribute is accessed like this... self.path --> self.properties.path
200 lines
6.5 KiB
Python
200 lines
6.5 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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__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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import math
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import os
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#import Blender
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#from Blender import *
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#import BPyMessages
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try:
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from struct import pack
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except:
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pack = None
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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, default= "tmp.mdd")
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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.ops.add(ExportMDD)
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# Add to a menu
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import dynamic_menu
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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.item_stringO(ExportMDD.bl_idname, "path", default_path, text="Vertex Keyframe Animation (.mdd)...")
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menu_item = dynamic_menu.add(bpy.types.INFO_MT_file_export, 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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