I have been creating node groups with the group_make operator, but there doesn't seem to be any way to set properties such as the label or name of the resulting group node.
This makes it difficult to access this node later, and be sure that one is accessing the correct node.
How can I specify node properties on creation?
The problem with using operators in scripts is they return {FINISHED} rather than the object you wish to keep working with. Instead of using the make_group operator you could use
import bpy
test_group = bpy.data.node_groups.new('testGroup', 'ShaderNodeTree')
test_group.name = 'anotherGroupName'
node_groups.new() creates the group with the name set to the first pramater. The result returned into test_group can be used later to change that name.
You can also reference the group by name to change it.
bpy.data.node_groups['testgrp'].name = 'NewGroupName'
but without knowing the auto-generated name from the operator this isn't helpful.
You can use something like this:
node_grp = bpy.data.node_groups[-1] # to get last created group
node_grp.name = "Special Name" # to set a name
bpy.data.node_groups.new(name, type) but realize there may be cases where this isnt a drop-in replacement.
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bpy.data.node_groups[-1] is not returning the last created node group.
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bpy.data.node_groups.new works for me, thanks. @CoDEmanX I assigned the variable right after creating the nodegroup, but it still wasn't the right nodegroup.
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To rename a new group you can after creating first get out of the group
# Get out of group
bpy.ops.node.group_edit( get_override('NODE_EDITOR') )
Then name the active node which is the group
groupname = bpy.context.active_object.active_material.node_tree.nodes.active
Then if needed get "back in the group"
bpy.ops.node.group_edit( get_override('NODE_EDITOR') )
The override function:
def get_override(area_type):
for window in bpy.context.window_manager.windows:
screen = window.screen
for area in screen.areas:
if area.type == area_type:
for region in area.regions:
if region.type == 'WINDOW':
override = {'window': window,
'screen': screen,
'area': area,
'region': region,
'blend_data': bpy.context.blend_data}
return override
get_override func, otherwise no one can tell whether that's a good or bad approach.
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