9bd89c67d2
The `connect_sockets()` node util function is used to connect sockets even when inside node groups, when only a "virtual socket" is available. It takes care of creating the interface in the group, so that a socket is available in the Input or Output node. This feature was broken after the change of API, replacing `tree.inputs` and `tree.outputs` with a unified `tree.interface`. This commit updates the util to account for this change. Fixes an exception in the Node Wrangler add-on, when connecting a socket of a type not yet available in an Input or Output node. More info here: https://wiki.blender.org/wiki/Reference/Release_Notes/4.0/Python_API#Node_Groups Pull Request: https://projects.blender.org/blender/blender/pulls/112960
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
# SPDX-FileCopyrightText: 2009-2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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__all__ = (
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"find_node_input",
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)
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def connect_sockets(input, output):
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"""
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Connect sockets in a node tree.
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This is useful because the links created through the normal Python API are
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invalid when one of the sockets is a virtual socket (grayed out sockets in
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Group Input and Group Output nodes).
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It replaces node_tree.links.new(input, output)
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"""
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import bpy
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# Swap sockets if they are not passed in the proper order
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if input.is_output and not output.is_output:
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input, output = output, input
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input_node = output.node
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output_node = input.node
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if input_node.id_data is not output_node.id_data:
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print("Sockets do not belong to the same node tree")
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return
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if type(input) == type(output) == bpy.types.NodeSocketVirtual:
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print("Cannot connect two virtual sockets together")
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return
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if output_node.type == 'GROUP_OUTPUT' and type(input) == bpy.types.NodeSocketVirtual:
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output_node.id_data.interface.new_socket(
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name=output.name, socket_type=type(output).__name__, in_out='OUTPUT'
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)
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input = output_node.inputs[-2]
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if input_node.type == 'GROUP_INPUT' and type(output) == bpy.types.NodeSocketVirtual:
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input_node.id_data.interface.new_socket(
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name=input.name, socket_type=type(input).__name__, in_out='INPUT'
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)
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output = input_node.outputs[-2]
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return input_node.id_data.links.new(input, output)
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# XXX Names are not unique. Returns the first match.
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def find_node_input(node, name):
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for input in node.inputs:
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if input.name == name:
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return input
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return None
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