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sequencer_eco.py
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sequencer_eco.py
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#----------------------------------------------------------
# File sequencer_slide_strip.py
#----------------------------------------------------------
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
bl_info = {
'name': 'Eco',
'author': 'Carlos Padial',
'version': (0,1),
'blender': (2, 6, 2),
'api': 44136,
'category': 'Sequencer',
'location': 'Sequencer > UI > Eco',
'description': 'eco operator to repeat and offset strips',
'wiki_url': 'http://wiki.blender.org/index.php?title=Extensions:2.6/Py/Scripts/Sequencer/Eco',
'tracker_url': 'http://projects.blender.org/tracker/?func=detail&aid=31677&group_id=153&atid=467',}
'''
==Installation==
Save this file [] in your addons folder
Enable the Add-On from the Add-Ons tab in the User Preferences window, Sequencer section.
==Usage==
Select a movie or meta strip, set number of echoes and offset (in frames), and press Eco button.
The opacity of all strips is updated to 1/number of echoes to mantain luminance. The blending is set to add for all clips except first one.
All clips are grouped inside a meta. Press home after running the script to see the meta.
==TODO==
Add other blending options.
'''
import bpy
from bpy.props import IntProperty
def act_strip(context):
try:
return context.scene.sequence_editor.active_strip
except AttributeError:
return None
def initSceneProperties(scn):
bpy.types.Scene.eco_x = IntProperty(
name = 'Eco X',
default = 1,
min = 1, max = 25)
scn['eco_x'] = 5
bpy.types.Scene.offset_eco_x = IntProperty(
name = 'Offset Eco X',
default = 1,
min = -250, max = 250)
scn['offset_eco_x'] = 1
return
initSceneProperties(bpy.context.scene)
class EcoPanel(bpy.types.Panel):
bl_label = "Eco Panel"
bl_idname = "OBJECT_PT_eco"
bl_space_type = "SEQUENCE_EDITOR"
bl_region_type = "UI"
@classmethod
def poll(self, context):
scn = context.scene
if scn and scn.sequence_editor:
return scn.sequence_editor.sequences
else:
return False
def draw_header(self, context):
layout = self.layout
layout.label(text="", icon="NLA")
def draw(self, context):
scn = bpy.context.scene
strip = act_strip(context)
seq_type = strip.type
if seq_type == 'MOVIE' or seq_type == 'META' or seq_type == 'SCENE':
active_strip = act_strip(context)
layout = self.layout
row=layout.row()
row.prop(scn, 'eco_x', text="Ecos")
row=layout.row()
row.prop(scn, 'offset_eco_x', text="Offset eco")
row=layout.row()
row.operator('sequencer.eco')
class OBJECT_OT_EcoOperator(bpy.types.Operator):
bl_idname = "sequencer.eco"
bl_label = "Eco operator"
bl_description = 'eco eco eco'
bl_options = {'REGISTER', 'UNDO'}
def execute(self, context):
active_strip=act_strip(context)
if not act_strip:
self.report({'ERROR_INVALID_INPUT'},'No active strip')
return {'CANCELLED'}
scn = bpy.context.scene
sel_strips = bpy.context.selected_sequences
cur_camera = scn.camera
eco = scn['eco_x']
offset = scn['offset_eco_x']
active_strip.blend_type = 'REPLACE'
active_strip.blend_alpha = 1
for i in range(eco):
bpy.ops.sequencer.duplicate(mode='TRANSLATION')
bpy.ops.transform.seq_slide(value=(offset, 1), snap=False, snap_target='CLOSEST', snap_point=(0, 0, 0), snap_align=False, snap_normal=(0, 0, 0), release_confirm=False)
active_strip = act_strip(context)
active_strip.blend_type = 'ALPHA_OVER'
active_strip.blend_alpha = 1/eco
bpy.ops.sequencer.select_all(action='TOGGLE')
bpy.ops.sequencer.select_all(action='TOGGLE')
bpy.ops.sequencer.meta_make()
return {'FINISHED'}
def register():
bpy.utils.register_class(EcoPanel)
bpy.utils.register_class(OBJECT_OT_EcoOperator)
def unregister():
bpy.utils.unregister_class(EcoPanel)
bpy.utils.unregister_class(OBJECT_OT_EcoOperator)
if __name__ == "__main__":
register()

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