1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
# SPDX-License-Identifier: GPL-2.0-or-later
bl_info = {
"name": "Export Pointcache Format(.pc2)",
"author": "Florian Meyer (tstscr)",
"version": (1, 1, 2),
"blender": (2, 80, 0),
"location": "File > Export > Pointcache (.pc2)",
"description": "Export mesh Pointcache data (.pc2)",
"warning": "",
"doc_url": "{BLENDER_MANUAL_URL}/addons/import_export/pc2.html",
"category": "Import-Export",
}
"""
Related links:
https://developer.blender.org/T34456
https://developer.blender.org/T25408
Usage Notes:
in Maya Mel:
cacheFile -pc2 1 -pcf "<insert filepath of source>" -f "<insert target filename w/o extension>" -dir "<insert directory path for target>" -format "OneFile";
"""
import bpy
from bpy.props import BoolProperty, IntProperty, EnumProperty
import mathutils
from bpy_extras.io_utils import ExportHelper
from os import remove
import time
import math
import struct
def get_sampled_frames(start, end, sampling):
return [math.modf(start + x * sampling) for x in range(int((end - start) / sampling) + 1)]
def do_export(context, props, filepath):
mat_x90 = mathutils.Matrix.Rotation(-math.pi/2, 4, 'X')
ob = context.active_object
sc = context.scene
start = props.range_start
end = props.range_end
sampling = float(props.sampling)
apply_modifiers = props.apply_modifiers
depsgraph = None
if apply_modifiers:
depsgraph = context.evaluated_depsgraph_get()
me = ob.evaluated_get(depsgraph).to_mesh()
else:
me = ob.to_mesh()
vertCount = len(me.vertices)
sampletimes = get_sampled_frames(start, end, sampling)
sampleCount = len(sampletimes)
# Create the header
headerFormat = '<12siiffi'
headerStr = struct.pack(headerFormat, b'POINTCACHE2\0',
1, vertCount, start, sampling, sampleCount)
file = open(filepath, "wb")
file.write(headerStr)
for frame in sampletimes:
# stupid modf() gives decimal part first!
sc.frame_set(int(frame[1]), subframe=frame[0])
if apply_modifiers:
me = ob.evaluated_get(depsgraph).to_mesh()
else:
me = ob.to_mesh()
if len(me.vertices) != vertCount:
bpy.data.meshes.remove(me, do_unlink=True)
file.close()
try:
remove(filepath)
except:
empty = open(filepath, 'w')
empty.write('DUMMIFILE - export failed\n')
empty.close()
print('Export failed. Vertexcount of Object is not constant')
return False
if props.world_space:
me.transform(ob.matrix_world)
if props.rot_x90:
me.transform(mat_x90)
for v in me.vertices:
thisVertex = struct.pack('<fff', float(v.co[0]),
float(v.co[1]),
float(v.co[2]))
file.write(thisVertex)
if apply_modifiers:
ob.evaluated_get(depsgraph).to_mesh_clear()
else:
me = ob.to_mesh_clear()
file.flush()
file.close()
return True
# EXPORT OPERATOR
class Export_pc2(bpy.types.Operator, ExportHelper):
"""Export the active Object as a .pc2 Pointcache file"""
bl_idname = "export_shape.pc2"
bl_label = "Export Pointcache (.pc2)"
filename_ext = ".pc2"
rot_x90: BoolProperty(
name="Convert to Y-up",
description="Rotate 90 degrees around X to convert to y-up",
default=True,)
world_space: BoolProperty(
name="Export into Worldspace",
description="Transform the Vertexcoordinates into Worldspace",
default=False,)
apply_modifiers: BoolProperty(
name="Apply Modifiers",
description="Applies the Modifiers",
default=True,)
range_start: IntProperty(
name='Start Frame',
description='First frame to use for Export',
default=1,)
range_end: IntProperty(
name='End Frame',
description='Last frame to use for Export',
default=250,)
sampling: EnumProperty(
name='Sampling',
description='Sampling --> frames per sample (0.1 yields 10 samples per frame)',
items=(('0.01', '0.01', ''),
('0.05', '0.05', ''),
('0.1', '0.1', ''),
('0.2', '0.2', ''),
('0.25', '0.25', ''),
('0.5', '0.5', ''),
('1', '1', ''),
('2', '2', ''),
('3', '3', ''),
('4', '4', ''),
('5', '5', ''),
('10', '10', ''),
),
default='1',
)
@classmethod
def poll(cls, context):
obj = context.active_object
return (
obj is not None
and obj.type in {'MESH', 'CURVE', 'SURFACE', 'FONT'}
)
def execute(self, context):
start_time = time.time()
print('\n_____START_____')
props = self.properties
filepath = self.filepath
filepath = bpy.path.ensure_ext(filepath, self.filename_ext)
exported = do_export(context, props, filepath)
if exported:
print('finished export in %s seconds' %
((time.time() - start_time)))
print(filepath)
return {'FINISHED'}
def invoke(self, context, event):
wm = context.window_manager
if True:
# File selector
wm.fileselect_add(self) # will run self.execute()
return {'RUNNING_MODAL'}
elif True:
# search the enum
wm.invoke_search_popup(self)
return {'RUNNING_MODAL'}
elif False:
# Redo popup
return wm.invoke_props_popup(self, event)
elif False:
return self.execute(context)
def menu_func_export_button(self, context):
self.layout.operator(Export_pc2.bl_idname, text="Pointcache (.pc2)")
classes = [
Export_pc2,
]
def register():
for cls in classes:
bpy.utils.register_class(cls)
bpy.types.TOPBAR_MT_file_export.append(menu_func_export_button)
#bpy.types.VIEW3D_PT_tools_objectmode.prepend(menu_func_export_button)
def unregister():
bpy.types.TOPBAR_MT_file_export.remove(menu_func_export_button)
#bpy.types.VIEW3D_PT_tools_objectmode.remove(menu_func_export_button)
for cls in classes:
bpy.utils.unregister_class(cls)
if __name__ == "__main__":
register()
|
