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
|
# SPDX-License-Identifier: GPL-2.0-or-later
bl_info = {
"name": "Export Camera Animation",
"author": "Campbell Barton",
"version": (0, 1),
"blender": (2, 80, 0),
"location": "File > Export > Cameras & Markers (.py)",
"description": "Export Cameras & Markers (.py)",
"warning": "",
"doc_url": "{BLENDER_MANUAL_URL}/addons/import_export/anim_camera.html",
"support": 'OFFICIAL',
"category": "Import-Export",
}
import bpy
def write_cameras(context, fh, frame_start, frame_end, only_selected=False):
data_attrs = (
"lens",
"shift_x",
"shift_y",
"dof.focus_distance",
"clip_start",
"clip_end",
"display_size",
)
obj_attrs = (
"hide_render",
)
fw = fh.write
scene = bpy.context.scene
cameras = []
for obj in scene.objects:
if only_selected and not obj.select_get():
continue
if obj.type != 'CAMERA':
continue
cameras.append((obj, obj.data))
frame_range = range(frame_start, frame_end + 1)
fw("import bpy\n"
"cameras = {}\n"
"scene = bpy.context.scene\n"
"frame = scene.frame_current - 1\n"
"\n")
for obj, obj_data in cameras:
fw("data = bpy.data.cameras.new(%r)\n" % obj.name)
for attr in data_attrs:
fw("data.%s = %s\n" % (attr, repr(obj_data.path_resolve(attr))))
fw("obj = bpy.data.objects.new(%r, data)\n" % obj.name)
for attr in obj_attrs:
fw("obj.%s = %s\n" % (attr, repr(getattr(obj, attr))))
fw("bpy.context.collection.objects.link(obj)\n")
fw("cameras[%r] = obj\n" % obj.name)
fw("\n")
for f in frame_range:
scene.frame_set(f)
fw("# new frame\n")
fw("scene.frame_set(%d + frame)\n" % f)
for obj, obj_data in cameras:
fw("obj = cameras[%r]\n" % obj.name)
matrix = obj.matrix_world.copy()
fw("obj.location = %r, %r, %r\n" % matrix.to_translation()[:])
fw("obj.scale = %r, %r, %r\n" % matrix.to_scale()[:])
fw("obj.rotation_euler = %r, %r, %r\n" % matrix.to_euler()[:])
fw("obj.keyframe_insert(\"location\")\n")
fw("obj.keyframe_insert(\"scale\")\n")
fw("obj.keyframe_insert(\"rotation_euler\")\n")
# only key the angle
fw("data = obj.data\n")
fw("data.lens = %s\n" % obj_data.lens)
fw("data.keyframe_insert(\"lens\")\n")
fw("\n")
# now markers
fw("# markers\n")
for marker in scene.timeline_markers:
fw("marker = scene.timeline_markers.new(%r)\n" % marker.name)
fw("marker.frame = %d + frame\n" % marker.frame)
# will fail if the cameras not selected
if marker.camera:
fw("marker.camera = cameras.get(%r)\n" % marker.camera.name)
fw("\n")
from bpy.props import StringProperty, IntProperty, BoolProperty
from bpy_extras.io_utils import ExportHelper
class CameraExporter(bpy.types.Operator, ExportHelper):
"""Save a python script which re-creates cameras and markers elsewhere"""
bl_idname = "export_animation.cameras"
bl_label = "Export Camera & Markers"
filename_ext = ".py"
filter_glob: StringProperty(default="*.py", options={'HIDDEN'})
frame_start: IntProperty(name="Start Frame",
description="Start frame for export",
default=1, min=1, max=300000)
frame_end: IntProperty(name="End Frame",
description="End frame for export",
default=250, min=1, max=300000)
only_selected: BoolProperty(name="Only Selected",
default=True)
def execute(self, context):
with open(self.filepath, 'w', encoding='utf-8') as fh:
write_cameras(context, fh, self.frame_start, self.frame_end, self.only_selected)
return {'FINISHED'}
def invoke(self, context, event):
self.frame_start = context.scene.frame_start
self.frame_end = context.scene.frame_end
wm = context.window_manager
wm.fileselect_add(self)
return {'RUNNING_MODAL'}
def menu_export(self, context):
import os
default_path = os.path.splitext(bpy.data.filepath)[0] + ".py"
self.layout.operator(CameraExporter.bl_idname, text="Cameras & Markers (.py)").filepath = default_path
def register():
bpy.utils.register_class(CameraExporter)
bpy.types.TOPBAR_MT_file_export.append(menu_export)
def unregister():
bpy.utils.unregister_class(CameraExporter)
bpy.types.TOPBAR_MT_file_export.remove(menu_export)
if __name__ == "__main__":
register()
|
