refactor: update depth cutout and surface handling for improved geometry manipulation and clarity

tools/nodes/common/boundary_smoothing.py

@@ -7,6 +7,8 @@ from .smoothing import edge_boundary_field, pinned_smooth
 
 def _gated(group, value, blocked, *, default):
     """Return the value unless the blocked control is true."""
+    if blocked is False:
+        return value
     node = group.nodes.new("GeometryNodeSwitch")
     node.input_type = "FLOAT"
     node.inputs["True"].default_value = default

tools/nodes/common/cutout_boundary.py

@@ -1,10 +1,7 @@
 """Clean cutout boundary triangles and taper the split thickness profile."""
 
 from .depth_surface import _math
-from .nodes import (
-    boolean_node, compare_node, evaluate_field, group_input,
-    read_float_attribute, sample_field, store_float_attribute,
-)
+from .nodes import boolean_node, compare_node, evaluate_field, read_float_attribute, store_float_attribute
 from .smoothing import edge_boundary_field
 from .boundary_smoothing import boundary_influence
 
@@ -23,37 +20,10 @@ def remove_boundary_triangles(group, geometry):
     return delete.outputs["Geometry"]
 
 
-def original_boundary_field(group, original, rim=None):
-    """Sample the unsplit outline in UV space after projection and separation."""
-    nodes, links = group.nodes, group.links
-    uv = nodes.new("GeometryNodeInputNamedAttribute")
-    uv.data_type = "FLOAT_VECTOR"
-    uv.inputs["Name"].default_value = "UVMap"
-    original_uv = nodes.new("GeometryNodeSetPosition")
-    links.new(original, original_uv.inputs["Geometry"])
-    links.new(uv.outputs["Attribute"], original_uv.inputs["Position"])
-    nearest = nodes.new("GeometryNodeSampleNearest")
-    nearest.domain = "POINT"
-    links.new(original_uv.outputs["Geometry"], nearest.inputs["Geometry"])
-    links.new(uv.outputs["Attribute"], nearest.inputs["Sample Position"])
-    if rim is None:
-        rim = evaluate_field(group, edge_boundary_field(nodes, links), "FLOAT", "POINT")
-    return sample_field(group, original, rim, "FLOAT", index=nearest.outputs["Index"])
-
-
-def taper_split_profile(group, geometry, original_boundary):
-    """Taper balloon thickness through the shared two-ring influence builder."""
+def taper_split_profile(group, geometry, cut_boundary):
+    """Taper the balloon profile to zero across the Depth Split cuts."""
     nodes = group.nodes
     links = group.links
-    influence = boundary_influence(group, original_boundary)
-    controls = group_input(nodes, {"Depth Split"})
-    has_split = compare_node(group, "GREATER_THAN", controls.outputs["Depth Split"], 0)
-    band = nodes.new("GeometryNodeSwitch")
-    band.input_type = "FLOAT"
-    band.inputs["False"].default_value = 0.0
-    links.new(has_split, band.inputs["Switch"])
-    links.new(influence, band.inputs["True"])
-    band = band.outputs[0]
-    retained = _math(group, "SQRT", _math(group, "MAXIMUM", _math(group, "SUBTRACT", 1, band), 0))
+    retained = _math(group, "SUBTRACT", 1, boundary_influence(group, boundary=cut_boundary))
     profile = _math(group, "MULTIPLY", read_float_attribute(group, "o_balloon"), retained)
     return store_float_attribute(group, geometry, "o_balloon", profile)

tools/nodes/common/depth_surface.py

@@ -7,7 +7,7 @@ from .nodes import (
 from .smoothing import edge_boundary_field
 
 
-CUT_ATTRIBUTE = "_o_anyimage_depth_cut"
+CUT_ATTRIBUTE = "_o_depth_cut"
 
 
 def _math(group, operation, a, b=None):