nan
196b964efc
- Implemented `cutout_shell.py` to build front normals and shell positions for balloon geometry. - Created `cutout_volume.py` to establish smooth center fields and manage balloon surface attributes. - Introduced `pisa_sr_export.py` for exporting PiSA-SR components with dependencies and asset finalization.
181 lines
8.4 KiB
Python
181 lines
8.4 KiB
Python
"""Node graph builders used only while generating bundled assets."""
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def group_input(nodes, location, visible_names):
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node = nodes.new("NodeGroupInput")
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node.location = location
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visible = set(visible_names)
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for output in node.outputs:
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output.hide = output.name not in visible
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return node
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def edge_boundary_field(nodes, links, location):
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x, y = location
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vertex_neighbors = nodes.new("GeometryNodeInputMeshVertexNeighbors")
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vertex_neighbors.location = (x, y + 150.0)
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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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loose_vertex.location = (x + 200.0, y + 150.0)
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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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edge_neighbors.location = (x, y - 150.0)
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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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boundary_edge.location = (x + 200.0, y - 150.0)
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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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edge_domain.location = (x + 400.0, y - 150.0)
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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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is_boundary.location = (x + 600.0, y)
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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, x_offset=0.0, iterations_name="Iterations", weight_name="Smooth"
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):
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nodes = group.nodes
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links = group.links
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existing_nodes = set(nodes)
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iteration_controls = group_input(nodes, (550.0, 1150.0), {iterations_name})
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weight_controls = group_input(nodes, (2300.0, 1450.0), {weight_name})
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repeat_output = nodes.new("GeometryNodeRepeatOutput")
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repeat_output.location = (3050.0, 550.0)
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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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repeat_input.location = (550.0, 550.0)
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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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links.new(geometry, repeat_input.inputs["Geometry"])
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boundary_field = edge_boundary_field(nodes, links, (750.0, -350.0))
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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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boundary_points.location = (1550.0, -350.0)
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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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boundary_geometry.location = (1750.0, -150.0)
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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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position = nodes.new("GeometryNodeInputPosition")
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position.location = (750.0, 850.0)
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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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smooth_all.location = (950.0, 850.0)
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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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boundary_position.location = (1350.0, 250.0)
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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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smooth_boundary.location = (1550.0, 250.0)
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links.new(boundary_position.outputs["Position"], smooth_boundary.inputs["Value"])
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nearest_boundary = nodes.new("GeometryNodeSampleNearest")
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nearest_boundary.domain = "POINT"
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nearest_boundary.location = (1800.0, 150.0)
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links.new(boundary_geometry.outputs["Selection"], nearest_boundary.inputs["Geometry"])
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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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sample_boundary.location = (2050.0, 250.0)
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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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choose_boundary.location = (2300.0, 350.0)
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direct_boundary = edge_boundary_field(nodes, links, (750.0, 450.0))
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links.new(direct_boundary, 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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boundary_mix.location = (2550.0, 400.0)
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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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normal = nodes.new("GeometryNodeInputNormal")
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normal.location = (1350.0, 1050.0)
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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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smooth_normal.location = (1550.0, 1050.0)
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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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normal_coherence.location = (1800.0, 1050.0)
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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 = True
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sharp_switch.inputs["False"].default_value = 1.0
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sharp_switch.location = (2050.0, 1050.0)
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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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smooth_weight.location = (2300.0, 1050.0)
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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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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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target_position.location = (2550.0, 700.0)
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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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current_position.location = (2300.0, 850.0)
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mix_position = nodes.new("ShaderNodeMix")
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mix_position.data_type = "VECTOR"
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mix_position.location = (2800.0, 850.0)
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links.new(smooth_weight.outputs[0], 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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set_position.location = (2800.0, 550.0)
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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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for node in set(nodes) - existing_nodes:
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node.location.x += x_offset
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return repeat_output.outputs["Geometry"]
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