GPv3: Curve to Mesh node #113659
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@ -5,6 +5,7 @@
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#include "BLI_task.hh"
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#include "BKE_curves.hh"
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#include "BKE_grease_pencil.hh"
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#include "node_geometry_util.hh"
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@ -12,36 +13,58 @@ namespace blender::nodes::node_geo_curve_reverse_cc {
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static void node_declare(NodeDeclarationBuilder &b)
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{
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b.add_input<decl::Geometry>("Curve").supported_type(GeometryComponent::Type::Curve);
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b.add_input<decl::Geometry>("Curve").supported_type(
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{GeometryComponent::Type::Curve, GeometryComponent::Type::GreasePencil});
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b.add_input<decl::Bool>("Selection").default_value(true).hide_value().field_on_all();
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b.add_output<decl::Geometry>("Curve").propagate_all();
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}
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static void reverse_curve(bke::CurvesGeometry &curves,
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const fn::FieldContext &field_context,
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const Field<bool> &selection_field)
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{
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fn::FieldEvaluator selection_evaluator{field_context, curves.curves_num()};
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selection_evaluator.add(selection_field);
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selection_evaluator.evaluate();
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const IndexMask selection = selection_evaluator.get_evaluated_as_mask(0);
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if (selection.is_empty()) {
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return;
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}
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curves.reverse_curves(selection);
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}
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static void reverse_grease_pencil(GreasePencil &grease_pencil, const Field<bool> &selection_field)
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{
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using namespace blender::bke::greasepencil;
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for (const int layer_index : grease_pencil.layers().index_range()) {
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Drawing *drawing = get_eval_grease_pencil_layer_drawing_for_write(grease_pencil, layer_index);
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if (drawing == nullptr) {
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continue;
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}
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bke::CurvesGeometry &curves = drawing->strokes_for_write();
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const bke::GreasePencilLayerFieldContext field_context(
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grease_pencil, ATTR_DOMAIN_CURVE, layer_index);
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reverse_curve(curves, field_context, selection_field);
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drawing->tag_topology_changed();
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}
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}
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static void node_geo_exec(GeoNodeExecParams params)
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{
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GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve");
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Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");
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GeometryComponentEditData::remember_deformed_positions_if_necessary(geometry_set);
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geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
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if (!geometry_set.has_curves()) {
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return;
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if (Curves *curves_id = geometry_set.get_curves_for_write()) {
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bke::CurvesGeometry &curves = curves_id->geometry.wrap();
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const bke::CurvesFieldContext field_context{curves, ATTR_DOMAIN_CURVE};
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reverse_curve(curves, field_context, selection_field);
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}
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const Curves &src_curves_id = *geometry_set.get_curves();
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const bke::CurvesGeometry &src_curves = src_curves_id.geometry.wrap();
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const bke::CurvesFieldContext field_context{src_curves, ATTR_DOMAIN_CURVE};
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fn::FieldEvaluator selection_evaluator{field_context, src_curves.curves_num()};
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selection_evaluator.add(params.get_input<Field<bool>>("Selection"));
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selection_evaluator.evaluate();
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const IndexMask selection = selection_evaluator.get_evaluated_as_mask(0);
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if (selection.is_empty()) {
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return;
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if (geometry_set.has_grease_pencil()) {
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reverse_grease_pencil(*geometry_set.get_grease_pencil_for_write(), selection_field);
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}
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Curves &curves_id = *geometry_set.get_curves_for_write();
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bke::CurvesGeometry &curves = curves_id.geometry.wrap();
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curves.reverse_curves(selection);
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});
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params.set_output("Curve", std::move(geometry_set));
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