Hi!
I’ve made a simple script that lets you sync the active UV layer / channel between multiple objects. Primarily this sped up my lightmapping workflow a lot. If a corresponding channel doesn’t exist, it also creates a matching one for the selected objects. This also lets you set the render UV map for multiple objects.
Link to plugin, it’s free
https://gum.co/Batch_UV_Operations_Blender
New Version, updated the post above. I added functionality to delete and split the active render set and simple active set to separate buttons / operators.
Nice one! Blender’s default way of (not) handling UV Sets of multiple objects can be a real pain in the a**. We cobbled together our own little tool for that a while back (not to be released any time soon), maybe you can find something useful there. It’s a slightly different approach though:
Haha yes I agree. Blender lacks some functionality for working with multiple objects. From changing common parameters (modifiers for example), to more complex things like physics and UVs.
This was super essential though 
Although I think my version offers more functionality while also including yours. I’m thinking of introducing an index (2nd layer instead of “LightmapUVs”) way of selection instead of name matching but I haven’t found a need for that yet.
@MadLLama
Hi,
Maybe you would interest, I found addon with options to moving UV up and down in the list, modified it slightly with adding sorting, and moved it to expandable panel under UV Maps.
Also changed your Batch panel to be consistent
uv_map_list_tools.py (6.0 KB)
# 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 3 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
# MERCHANTIBILITY 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, see <http://www.gnu.org/licenses/>.
bl_info = {
"name" : "BatchUVMaps",
"author" : "Arnas Karmaza",
"description" : "Extra Batch UV Operators",
"blender" : (2, 93, 0),
"version" : (1, 0, 1),
'location': 'Properties > Mesh Properties > UV Maps',
"warning" : "",
"category" : "Object"
}
import bpy
from . operators import OBJECT_OT_set_active_render_uv, OBJECT_OT_set_active_uv, OBJECT_OT_delete_active_uv
from . operators import Operator
from bpy.types import Panel
class UVMAPS_PT_batch_tools(Panel):
bl_label = "UV Batch Tools"
bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW'
bl_context = "data"
bl_parent_id = "DATA_PT_uv_texture"
bl_options = {'DEFAULT_CLOSED'}
def draw(self, context):
layout = self.layout
row = layout.row()
row.operator('object.set_active_uv_for_selected_objects', icon ='RIGHTARROW', text="Sync Active")
row.operator('object.set_active_uv_render_layer_for_selected_objects', icon='RESTRICT_RENDER_OFF', text="Set Active")
row.operator('object.delete_active_uv_layer_for_selected_objects', icon='TRASH', text="Delete Active")
#defining classes here
classes = (
UVMAPS_PT_batch_tools,
OBJECT_OT_set_active_uv,
OBJECT_OT_delete_active_uv,
OBJECT_OT_set_active_render_uv
)
#def draw(self, context):
# layout = self.layout
# layout.label(text="Batch UV Tools:")
# row = layout.row()
# row.operator('object.set_active_uv_for_selected_objects', icon ='RIGHTARROW', text="Sync Active")
# row.operator('object.set_active_uv_render_layer_for_selected_objects', icon='RESTRICT_RENDER_OFF', text="Set Active")
# row.operator('object.delete_active_uv_layer_for_selected_objects', icon='TRASH', text="Delete Active")
def register():
from bpy.utils import register_class
for cls in classes:
register_class(cls)
# Drawing the Operator in UV maps panel
#bpy.types.DATA_PT_uv_texture.append(draw)
def unregister():
from bpy.utils import unregister_class
for cls in classes:
unregister_class(cls)
# Removing the operator from UV maps panel
#bpy.types.DATA_PT_uv_texture.remove(draw)
Thanks! People may find that useful, but really I’m fine with the current addon’s functionality, I haven’t ran into issues with it yet.
Hi
I think this is a very useful add-on!
However, it does not work as shown in the video
When I press the Sync active map button, the UV channel is selected, but the channel does not increase
Is this a bug?
Blender : 2.93.4
Batch UV Operators : 1.0.1
@InamuraJIN Hey! Sorry I missed that. It goes over selected objects and sets the active UV map to the one with the same name. If a layer with the same name doesn’t exist on some object, it will create a UV layer with that name.
In your example it works as expected, not sure what outcome you’re looking for?
To anyone who finds this thread, I’ve updated the addon with a ton of new functionality!
Here’s the new thread with info, gifs, links:
Hi!
I’ve updated batch UV tools. This plugin let’s you manage UV maps / layers on multiple objects at once.
Added a few useful functions like layer reordering, copying unique and layer order syncing for easy cleanup
Get it on Gumroad for free or support me and Blenderfund and get it on Blendermarket
Functions:
Hope you find it useful, happy blending!
@madlady37 Woudn’t be better instead of just plain label, have it as collapsible pannel just like @APEC made?
anyway, here updated APEC modification for never version: init.py|attachment (3.2 KB)
btw uv up/down button from screen is from gret addon
Hey! Yeah perhaps, I don’t think it’s that cluttered, but will definitely consider something like that in the future, thanks!
