Implement arrangement framework for node groups

- Introduced `frames.py` to manage field complex calculations and their arrangement within node groups.
- Added functionality to create and remove field frames based on node arrangements.
- Developed `passages.py` to find unobstructed paths for connections around calculation frames.
- Implemented `references.py` to route shared results on peripheral tracks, ensuring efficient distribution of outputs.
- Created `sections.py` to reserve space for field calculations adjacent to geometry consumers.
- Added `sources.py` to position shared calculation sources effectively beside their distribution channels.
- Enhanced outline smoothing with `outline_smoothing.py` to adapt camera depth along original outlines.

tools/nodes/groups/image_depth_panorama.py

@@ -39,7 +39,7 @@ def _quad_sphere(group, segments):
 def build_image_depth_panorama_group():
     group = bpy.data.node_groups.new("O Image Depth Panorama", "GeometryNodeTree")
     group.is_modifier = group.use_fake_user = True
-    group["anyimage_asset_revision"] = 14
+    group["anyimage_asset_revision"] = 15
     interface_socket(group, "Geometry", "INPUT", "NodeSocketGeometry")
     subdivide = interface_socket(group, "Subdivide", "INPUT", "NodeSocketInt")
     subdivide.default_value, subdivide.min_value, subdivide.max_value = 7, 0, 8
@@ -57,7 +57,6 @@ def build_image_depth_panorama_group():
     float_input(group, "Invalid Distance", 100, minimum=1e-5, subtype="DISTANCE", parent=options)
     data = group.interface.new_panel("Data", default_closed=True)
     interface_socket(group, "Depth Image", "INPUT", "NodeSocketImage", data).hide_in_modifier = True
-    float_input(group, "Reference Distance", 1, minimum=1e-6, subtype="DISTANCE", parent=data).hide_in_modifier = True
     interface_socket(group, "Geometry", "OUTPUT", "NodeSocketGeometry")
     nodes, links = group.nodes, group.links
 
@@ -151,11 +150,15 @@ def build_image_depth_panorama_group():
     links.new(group_input(nodes, {"Valid Only"}).outputs["Valid Only"], selection.inputs["Switch"])
     links.new(delete.outputs[0], selection.inputs["False"])
     links.new(culled, selection.inputs["True"])
-    controls = group_input(nodes, {"Split Threshold", "Reference Distance"})
+    controls = group_input(nodes, {"Split Threshold"})
     strength = controls.outputs["Split Threshold"]
-    geometry, corner_camera, cut_vertex = split_depth_surface(group, selection.outputs[0], depth(combine(face_u, face_v))[0], strength,
-                                   _math(group, "DIVIDE", 1, controls.outputs["Reference Distance"]),
-                                   face_center=face.outputs["Value"])
+    face_camera = depth(combine(face_u, face_v))[0]
+    radial = nodes.new("ShaderNodeSeparateXYZ")
+    links.new(face_camera, radial.inputs[0])
+    geometry, corner_camera, cut_vertex = split_depth_surface(
+        group, selection.outputs[0], face_camera, strength, 1.0,
+        face_distance=radial.outputs["X"], face_center=face.outputs["Value"],
+    )
     distance = build_surface_camera(group, pixel, corner_camera, cut_vertex, strength)
     axes = nodes.new("ShaderNodeSeparateXYZ")
     links.new(distance, axes.inputs[0])