forked from bartvdbraak/blender
9498121463
create_mesh, create_dupli_list, make_display_list and is_visible. This is done in order to make these context independent as the RNA API should be as much as possible, and to fix #21297 and #21719, where there was an assumption from these functions that there is a scene in the context, which does not work for external render engines exporting in a separate thread. Also avoided using context in a number of other functions, ideally only UI/WM type functions should use context. I've updated the scripts in trunk, but the addons and external ones in development will need updates too.
201 lines
6.5 KiB
Python
201 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., 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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__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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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.frame_current
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sce.set_frame(PREF_STARTFRAME)
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me = ob.create_mesh(sce, 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(sce, 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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frame_start = IntProperty(name="Start Frame", description="Start frame for baking", min=minframe, max=maxframe, default=1)
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frame_end = 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.frame_start, self.properties.frame_end, 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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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="Lightwave Point Cache (.mdd)").path = default_path
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def register():
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bpy.types.register(ExportMDD)
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bpy.types.INFO_MT_file_export.append(menu_func)
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def unregister():
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bpy.types.unregister(ExportMDD)
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bpy.types.INFO_MT_file_export.remove(menu_func)
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if __name__ == "__main__":
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register()
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