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Fix nested @tree group references on Blender 4+ #69

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Fix nested @tree group references on Blender 4+ #69

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17 changes: 13 additions & 4 deletions api/tree.py
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Original file line number Diff line number Diff line change
Expand Up @@ -163,12 +163,21 @@ def validate_param(param):
# This lets @trees be used in other @trees via simple function calls.
def group_reference(*args, **kwargs):
if IS_BLENDER_4:
result = geometrynodegroup(node_tree=node_group, *args, **kwargs)
result = State.current_node_tree.nodes.new('GeometryNodeGroup')
result.node_tree = node_group
enabled_inputs = [node_input for node_input in result.inputs if node_input.enabled]
for value, node_input in zip(args, enabled_inputs):
set_or_create_link(value, node_input)
for node_input in enabled_inputs[len(args):]:
argname = node_input.name.lower().replace(' ', '_')
if argname in kwargs:
set_or_create_link(kwargs[argname], node_input)
else:
result = group(node_tree=node_group, *args, **kwargs)
group_outputs = []
for group_output in result._socket.node.outputs:
group_outputs.append(Type(group_output))
for group_output in result.outputs:
if group_output.enabled:
group_outputs.append(Type(group_output))
if len(group_outputs) == 1:
return group_outputs[0]
else:
Expand All @@ -178,4 +187,4 @@ def group_reference(*args, **kwargs):
return build_tree
else:
tree_name = name.__name__
return build_tree(name)
return build_tree(name)