Add tests and implement boundary smoothing and cutout functionality

- Introduced tests for boundary smoothing in `test_boundary_smoothing.py`, verifying that smoothing reduces stair-step artifacts while preserving boundary integrity.
- Added tests for cutout boundary behavior in `test_cutout_boundary.py`, ensuring proper handling of boundary triangles and normal blending.
- Created `test_temporary_attributes.py` to check the cleanup of temporary attributes across depth modifier branches, ensuring no warnings are raised.
- Implemented point culling functionality in `test_validity.py`, confirming that invalid points are removed without affecting adjacent geometry.
- Developed boundary smoothing logic in `boundary_smoothing.py`, allowing for depth smoothing while maintaining edge integrity.
- Added cutout boundary management in `cutout_boundary.py`, including functions for removing boundary triangles and tapering thickness profiles.
- Implemented validity checks in `validity.py` to ensure proper deletion of invalid vertices and associated wire edges.
This commit is contained in:
2026-09-11 20:37:20 +08:00
parent e8129fe495
commit 31074bd511
85 changed files with 2501 additions and 1451 deletions

View File

@@ -1,5 +1,5 @@
"""Build shared boundary fields and iterative smoothing."""
from .nodes import group_input
from .nodes import group_input, sample_field
def edge_boundary_field(nodes, links):
@@ -41,7 +41,8 @@ def edge_boundary_field(nodes, links):
def expand_smooth(
group, geometry, iterations_name="Iterations", weight_name="Smooth"
group, geometry, iterations_name="Iterations", weight_name="Smooth", *,
influence=None, pin_sharp=True,
):
nodes = group.nodes
links = group.links
@@ -55,7 +56,6 @@ def expand_smooth(
iteration_controls.outputs[iterations_name],
repeat_input.inputs["Iterations"],
)
links.new(geometry, repeat_input.inputs["Geometry"])
boundary_field = edge_boundary_field(nodes, links)
boundary_points = nodes.new("GeometryNodeFieldOnDomain")
@@ -67,6 +67,21 @@ def expand_smooth(
boundary_geometry.domain = "POINT"
links.new(repeat_input.outputs["Geometry"], boundary_geometry.inputs["Geometry"])
links.new(boundary_points.outputs["Value"], boundary_geometry.inputs["Selection"])
links.new(geometry, repeat_input.inputs["Geometry"])
nearest_boundary = nodes.new("GeometryNodeSampleNearest")
nearest_boundary.domain = "POINT"
if influence is not None:
# Both boundary meshes keep the same compact index order: only positions change.
source_boundary = nodes.new("GeometryNodeSeparateGeometry")
source_boundary.domain = "POINT"
links.new(geometry, source_boundary.inputs["Geometry"])
links.new(boundary_points.outputs["Value"], source_boundary.inputs["Selection"])
links.new(source_boundary.outputs["Selection"], nearest_boundary.inputs["Geometry"])
source_position = nodes.new("GeometryNodeInputPosition").outputs["Position"]
fixed_position = sample_field(group, geometry, source_position, "FLOAT_VECTOR")
links.new(fixed_position, nearest_boundary.inputs["Sample Position"])
else:
links.new(boundary_geometry.outputs["Selection"], nearest_boundary.inputs["Geometry"])
position = nodes.new("GeometryNodeInputPosition")
smooth_all = nodes.new("GeometryNodeBlurAttribute")
@@ -81,9 +96,6 @@ def expand_smooth(
smooth_boundary.inputs["Iterations"].default_value = 1
smooth_boundary.inputs["Weight"].default_value = 0.5
links.new(boundary_position.outputs["Position"], smooth_boundary.inputs["Value"])
nearest_boundary = nodes.new("GeometryNodeSampleNearest")
nearest_boundary.domain = "POINT"
links.new(boundary_geometry.outputs["Selection"], nearest_boundary.inputs["Geometry"])
sample_boundary = nodes.new("GeometryNodeSampleIndex")
sample_boundary.data_type = "FLOAT_VECTOR"
sample_boundary.domain = "POINT"
@@ -94,8 +106,7 @@ def expand_smooth(
choose_boundary = nodes.new("GeometryNodeSwitch")
choose_boundary.input_type = "VECTOR"
direct_boundary = edge_boundary_field(nodes, links)
links.new(direct_boundary, choose_boundary.inputs["Switch"])
links.new(boundary_points.outputs["Value"], choose_boundary.inputs["Switch"])
links.new(smooth_all.outputs["Value"], choose_boundary.inputs["False"])
links.new(sample_boundary.outputs["Value"], choose_boundary.inputs["True"])
boundary_mix = nodes.new("ShaderNodeMix")
@@ -104,24 +115,33 @@ def expand_smooth(
links.new(smooth_all.outputs["Value"], boundary_mix.inputs[4])
links.new(choose_boundary.outputs["Output"], boundary_mix.inputs[5])
normal = nodes.new("GeometryNodeInputNormal")
smooth_normal = nodes.new("GeometryNodeBlurAttribute")
smooth_normal.data_type = "FLOAT_VECTOR"
smooth_normal.inputs["Iterations"].default_value = 10
smooth_normal.inputs["Weight"].default_value = 1.0
links.new(normal.outputs["Normal"], smooth_normal.inputs["Value"])
normal_coherence = nodes.new("ShaderNodeVectorMath")
normal_coherence.operation = "LENGTH"
links.new(smooth_normal.outputs["Value"], normal_coherence.inputs[0])
sharp_switch = nodes.new("GeometryNodeSwitch")
sharp_switch.input_type = "FLOAT"
sharp_switch.inputs["Switch"].default_value = True
sharp_switch.inputs["False"].default_value = 1.0
links.new(normal_coherence.outputs["Value"], sharp_switch.inputs["True"])
smooth_weight = nodes.new("ShaderNodeMath")
smooth_weight.operation = "MULTIPLY"
links.new(weight_controls.outputs[weight_name], smooth_weight.inputs[0])
links.new(sharp_switch.outputs["Output"], smooth_weight.inputs[1])
weight = weight_controls.outputs[weight_name]
if pin_sharp:
normal = nodes.new("GeometryNodeInputNormal")
smooth_normal = nodes.new("GeometryNodeBlurAttribute")
smooth_normal.data_type = "FLOAT_VECTOR"
smooth_normal.inputs["Iterations"].default_value = 10
smooth_normal.inputs["Weight"].default_value = 1.0
links.new(normal.outputs["Normal"], smooth_normal.inputs["Value"])
normal_coherence = nodes.new("ShaderNodeVectorMath")
normal_coherence.operation = "LENGTH"
links.new(smooth_normal.outputs["Value"], normal_coherence.inputs[0])
sharp_switch = nodes.new("GeometryNodeSwitch")
sharp_switch.input_type = "FLOAT"
sharp_switch.inputs["Switch"].default_value = pin_sharp
sharp_switch.inputs["False"].default_value = 1.0
links.new(normal_coherence.outputs["Value"], sharp_switch.inputs["True"])
smooth_weight = nodes.new("ShaderNodeMath")
smooth_weight.operation = "MULTIPLY"
links.new(weight_controls.outputs[weight_name], smooth_weight.inputs[0])
links.new(sharp_switch.outputs["Output"], smooth_weight.inputs[1])
weight = smooth_weight.outputs[0]
if influence is not None:
masked_weight = nodes.new("ShaderNodeMath")
masked_weight.operation = "MULTIPLY"
links.new(weight, masked_weight.inputs[0])
links.new(influence, masked_weight.inputs[1])
weight = masked_weight.outputs[0]
target_position = nodes.new("GeometryNodeSwitch")
target_position.input_type = "VECTOR"
@@ -131,11 +151,18 @@ def expand_smooth(
current_position = nodes.new("GeometryNodeInputPosition")
mix_position = nodes.new("ShaderNodeMix")
mix_position.data_type = "VECTOR"
links.new(smooth_weight.outputs[0], mix_position.inputs[0])
links.new(weight, mix_position.inputs[0])
links.new(current_position.outputs["Position"], mix_position.inputs[4])
links.new(target_position.outputs["Output"], mix_position.inputs[5])
set_position = nodes.new("GeometryNodeSetPosition")
links.new(repeat_input.outputs["Geometry"], set_position.inputs["Geometry"])
links.new(mix_position.outputs["Result"], set_position.inputs["Position"])
links.new(set_position.outputs["Geometry"], repeat_output.inputs["Geometry"])
if influence is not None:
enabled = nodes.new("GeometryNodeSwitch")
enabled.input_type = "GEOMETRY"
links.new(iteration_controls.outputs[iterations_name], enabled.inputs["Switch"])
links.new(geometry, enabled.inputs["False"])
links.new(repeat_output.outputs["Geometry"], enabled.inputs["True"])
return enabled.outputs["Output"]
return repeat_output.outputs["Geometry"]