nan
31074bd511
- 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.
169 lines
8.3 KiB
Python
169 lines
8.3 KiB
Python
"""Build shared boundary fields and iterative smoothing."""
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from .nodes import group_input, sample_field
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def edge_boundary_field(nodes, links):
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vertex_neighbors = nodes.new("GeometryNodeInputMeshVertexNeighbors")
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loose_vertex = nodes.new("FunctionNodeCompare")
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loose_vertex.data_type = "INT"
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loose_vertex.operation = "EQUAL"
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loose_vertex_a = next(
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socket for socket in loose_vertex.inputs if socket.identifier == "A_INT"
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)
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loose_vertex_b = next(
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socket for socket in loose_vertex.inputs if socket.identifier == "B_INT"
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)
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loose_vertex_b.default_value = 1
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links.new(vertex_neighbors.outputs["Vertex Count"], loose_vertex_a)
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edge_neighbors = nodes.new("GeometryNodeInputMeshEdgeNeighbors")
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boundary_edge = nodes.new("FunctionNodeCompare")
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boundary_edge.data_type = "INT"
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boundary_edge.operation = "EQUAL"
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boundary_edge_a = next(
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socket for socket in boundary_edge.inputs if socket.identifier == "A_INT"
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)
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boundary_edge_b = next(
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socket for socket in boundary_edge.inputs if socket.identifier == "B_INT"
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)
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boundary_edge_b.default_value = 1
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links.new(edge_neighbors.outputs["Face Count"], boundary_edge_a)
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edge_domain = nodes.new("GeometryNodeFieldOnDomain")
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edge_domain.data_type = "BOOLEAN"
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edge_domain.domain = "EDGE"
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links.new(boundary_edge.outputs["Result"], edge_domain.inputs["Value"])
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is_boundary = nodes.new("FunctionNodeBooleanMath")
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is_boundary.operation = "OR"
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links.new(edge_domain.outputs["Value"], is_boundary.inputs[0])
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links.new(loose_vertex.outputs["Result"], is_boundary.inputs[1])
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return is_boundary.outputs["Boolean"]
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def expand_smooth(
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group, geometry, iterations_name="Iterations", weight_name="Smooth", *,
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influence=None, pin_sharp=True,
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):
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nodes = group.nodes
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links = group.links
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iteration_controls = group_input(nodes, {iterations_name})
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weight_controls = group_input(nodes, {weight_name})
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repeat_output = nodes.new("GeometryNodeRepeatOutput")
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repeat_input = nodes.new("GeometryNodeRepeatInput")
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repeat_input.pair_with_output(repeat_output)
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repeat_output.repeat_items.new("GEOMETRY", "Geometry")
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links.new(
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iteration_controls.outputs[iterations_name],
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repeat_input.inputs["Iterations"],
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)
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boundary_field = edge_boundary_field(nodes, links)
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boundary_points = nodes.new("GeometryNodeFieldOnDomain")
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boundary_points.data_type = "BOOLEAN"
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boundary_points.domain = "POINT"
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links.new(boundary_field, boundary_points.inputs["Value"])
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boundary_geometry = nodes.new("GeometryNodeSeparateGeometry")
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boundary_geometry.domain = "POINT"
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links.new(repeat_input.outputs["Geometry"], boundary_geometry.inputs["Geometry"])
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links.new(boundary_points.outputs["Value"], boundary_geometry.inputs["Selection"])
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links.new(geometry, repeat_input.inputs["Geometry"])
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nearest_boundary = nodes.new("GeometryNodeSampleNearest")
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nearest_boundary.domain = "POINT"
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if influence is not None:
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# Both boundary meshes keep the same compact index order: only positions change.
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source_boundary = nodes.new("GeometryNodeSeparateGeometry")
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source_boundary.domain = "POINT"
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links.new(geometry, source_boundary.inputs["Geometry"])
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links.new(boundary_points.outputs["Value"], source_boundary.inputs["Selection"])
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links.new(source_boundary.outputs["Selection"], nearest_boundary.inputs["Geometry"])
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source_position = nodes.new("GeometryNodeInputPosition").outputs["Position"]
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fixed_position = sample_field(group, geometry, source_position, "FLOAT_VECTOR")
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links.new(fixed_position, nearest_boundary.inputs["Sample Position"])
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else:
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links.new(boundary_geometry.outputs["Selection"], nearest_boundary.inputs["Geometry"])
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position = nodes.new("GeometryNodeInputPosition")
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smooth_all = nodes.new("GeometryNodeBlurAttribute")
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smooth_all.data_type = "FLOAT_VECTOR"
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smooth_all.inputs["Iterations"].default_value = 1
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smooth_all.inputs["Weight"].default_value = 1.0
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links.new(position.outputs["Position"], smooth_all.inputs["Value"])
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boundary_position = nodes.new("GeometryNodeInputPosition")
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smooth_boundary = nodes.new("GeometryNodeBlurAttribute")
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smooth_boundary.data_type = "FLOAT_VECTOR"
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smooth_boundary.inputs["Iterations"].default_value = 1
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smooth_boundary.inputs["Weight"].default_value = 0.5
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links.new(boundary_position.outputs["Position"], smooth_boundary.inputs["Value"])
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sample_boundary = nodes.new("GeometryNodeSampleIndex")
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sample_boundary.data_type = "FLOAT_VECTOR"
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sample_boundary.domain = "POINT"
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sample_boundary.clamp = False
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links.new(boundary_geometry.outputs["Selection"], sample_boundary.inputs["Geometry"])
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links.new(smooth_boundary.outputs["Value"], sample_boundary.inputs["Value"])
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links.new(nearest_boundary.outputs["Index"], sample_boundary.inputs["Index"])
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choose_boundary = nodes.new("GeometryNodeSwitch")
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choose_boundary.input_type = "VECTOR"
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links.new(boundary_points.outputs["Value"], choose_boundary.inputs["Switch"])
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links.new(smooth_all.outputs["Value"], choose_boundary.inputs["False"])
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links.new(sample_boundary.outputs["Value"], choose_boundary.inputs["True"])
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boundary_mix = nodes.new("ShaderNodeMix")
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boundary_mix.data_type = "VECTOR"
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boundary_mix.inputs[0].default_value = 1.0
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links.new(smooth_all.outputs["Value"], boundary_mix.inputs[4])
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links.new(choose_boundary.outputs["Output"], boundary_mix.inputs[5])
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weight = weight_controls.outputs[weight_name]
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if pin_sharp:
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normal = nodes.new("GeometryNodeInputNormal")
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smooth_normal = nodes.new("GeometryNodeBlurAttribute")
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smooth_normal.data_type = "FLOAT_VECTOR"
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smooth_normal.inputs["Iterations"].default_value = 10
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smooth_normal.inputs["Weight"].default_value = 1.0
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links.new(normal.outputs["Normal"], smooth_normal.inputs["Value"])
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normal_coherence = nodes.new("ShaderNodeVectorMath")
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normal_coherence.operation = "LENGTH"
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links.new(smooth_normal.outputs["Value"], normal_coherence.inputs[0])
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sharp_switch = nodes.new("GeometryNodeSwitch")
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sharp_switch.input_type = "FLOAT"
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sharp_switch.inputs["Switch"].default_value = pin_sharp
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sharp_switch.inputs["False"].default_value = 1.0
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links.new(normal_coherence.outputs["Value"], sharp_switch.inputs["True"])
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smooth_weight = nodes.new("ShaderNodeMath")
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smooth_weight.operation = "MULTIPLY"
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links.new(weight_controls.outputs[weight_name], smooth_weight.inputs[0])
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links.new(sharp_switch.outputs["Output"], smooth_weight.inputs[1])
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weight = smooth_weight.outputs[0]
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if influence is not None:
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masked_weight = nodes.new("ShaderNodeMath")
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masked_weight.operation = "MULTIPLY"
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links.new(weight, masked_weight.inputs[0])
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links.new(influence, masked_weight.inputs[1])
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weight = masked_weight.outputs[0]
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target_position = nodes.new("GeometryNodeSwitch")
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target_position.input_type = "VECTOR"
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target_position.inputs["Switch"].default_value = True
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links.new(smooth_all.outputs["Value"], target_position.inputs["False"])
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links.new(boundary_mix.outputs["Result"], target_position.inputs["True"])
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current_position = nodes.new("GeometryNodeInputPosition")
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mix_position = nodes.new("ShaderNodeMix")
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mix_position.data_type = "VECTOR"
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links.new(weight, mix_position.inputs[0])
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links.new(current_position.outputs["Position"], mix_position.inputs[4])
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links.new(target_position.outputs["Output"], mix_position.inputs[5])
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set_position = nodes.new("GeometryNodeSetPosition")
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links.new(repeat_input.outputs["Geometry"], set_position.inputs["Geometry"])
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links.new(mix_position.outputs["Result"], set_position.inputs["Position"])
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links.new(set_position.outputs["Geometry"], repeat_output.inputs["Geometry"])
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if influence is not None:
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enabled = nodes.new("GeometryNodeSwitch")
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enabled.input_type = "GEOMETRY"
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links.new(iteration_controls.outputs[iterations_name], enabled.inputs["Switch"])
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links.new(geometry, enabled.inputs["False"])
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links.new(repeat_output.outputs["Geometry"], enabled.inputs["True"])
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return enabled.outputs["Output"]
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return repeat_output.outputs["Geometry"]
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