Optimize Cutout Geometry Nodes

- Refactor Depth Cutout to reuse the projected outline field, reducing redundant boundary calculations and improving performance.
- Derive the center field from shared low-frequency fields, eliminating an unnecessary blur operation.
- Implement triangle-only strip cleanup for Depth Cutout, as the input is confirmed to be triangulated.
- Short-circuit zero-thickness branches in both Cutout and Depth Cutout to avoid unnecessary geometry generation.
- Standardize internal attribute naming with a new `_o_` prefix and implement wildcard cleanup for temporary attributes.
- Update relevant tests to ensure functionality remains consistent and validate changes against existing behavior.

tools/nodes/groups/image_depth_panorama.py

@@ -7,9 +7,9 @@ import bpy
 from ..common.validity import delete_invalid_points
 
 from ..common.depth_surface import (
-    _math, split_depth_surface, build_surface_camera, CUT_ATTRIBUTE,
+    _math, split_depth_surface, build_surface_camera,
 )
-from ..common.nodes import float_input, group_input, interface_socket, prepare_node_group, evaluate_field, remove_attributes
+from ..common.nodes import float_input, group_input, interface_socket, prepare_node_group, evaluate_field, remove_attribute_pattern
 from ..common.material_slots import inherit_material_slots
 from ..common.boundary_smoothing import smooth_boundary_depth, smooth_cut_boundary
 
@@ -175,10 +175,7 @@ def build_image_depth_panorama_group():
     deform = nodes.new("GeometryNodeSetPosition")
     links.new(geometry, deform.inputs["Geometry"])
     links.new(radial.outputs[0], deform.inputs["Position"])
-    geometry = remove_attributes(
-        group, deform.outputs[0], CUT_ATTRIBUTE,
-        enabled=_math(group, "GREATER_THAN", strength, 0.0),
-    )
+    geometry = remove_attribute_pattern(group, deform.outputs[0], "_o_*")
     geometry = smooth_cut_boundary(group, geometry, cut_vertex, outline_scale=1.0)
     flip = nodes.new("GeometryNodeFlipFaces")
     links.new(geometry, flip.inputs["Mesh"])