1 files changed, 82 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc b/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc
new file mode 100644
index 00000000000..06fe4427520
--- /dev/null
+++ b/source/blender/nodes/geometry/nodes/node_geo_set_curve_radius.cc
@@ -0,0 +1,82 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "node_geometry_util.hh"
+
+namespace blender::nodes::node_geo_set_curve_radius_cc {
+
+static void node_declare(NodeDeclarationBuilder &b)
+{
+  b.add_input<decl::Geometry>(N_("Curve")).supported_type(GEO_COMPONENT_TYPE_CURVE);
+  b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();
+  b.add_input<decl::Float>(N_("Radius"))
+      .min(0.0f)
+      .default_value(1.0f)
+      .supports_field()
+      .subtype(PROP_DISTANCE);
+  b.add_output<decl::Geometry>(N_("Curve"));
+}
+
+static void set_radius_in_component(GeometryComponent &component,
+                                    const Field<bool> &selection_field,
+                                    const Field<float> &radius_field)
+{
+  GeometryComponentFieldContext field_context{component, ATTR_DOMAIN_POINT};
+  const int domain_size = component.attribute_domain_size(ATTR_DOMAIN_POINT);
+  if (domain_size == 0) {
+    return;
+  }
+
+  OutputAttribute_Typed<float> radii = component.attribute_try_get_for_output_only<float>(
+      "radius", ATTR_DOMAIN_POINT);
+
+  fn::FieldEvaluator evaluator{field_context, domain_size};
+  evaluator.set_selection(selection_field);
+  evaluator.add_with_destination(radius_field, radii.varray());
+  evaluator.evaluate();
+
+  radii.save();
+}
+
+static void node_geo_exec(GeoNodeExecParams params)
+{
+  GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve");
+  Field<bool> selection_field = params.extract_input<Field<bool>>("Selection");
+  Field<float> radii_field = params.extract_input<Field<float>>("Radius");
+
+  geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
+    if (geometry_set.has_curve()) {
+      set_radius_in_component(
+          geometry_set.get_component_for_write<CurveComponent>(), selection_field, radii_field);
+    }
+  });
+
+  params.set_output("Curve", std::move(geometry_set));
+}
+
+}  // namespace blender::nodes::node_geo_set_curve_radius_cc
+
+void register_node_type_geo_set_curve_radius()
+{
+  namespace file_ns = blender::nodes::node_geo_set_curve_radius_cc;
+
+  static bNodeType ntype;
+
+  geo_node_type_base(&ntype, GEO_NODE_SET_CURVE_RADIUS, "Set Curve Radius", NODE_CLASS_GEOMETRY);
+  ntype.geometry_node_execute = file_ns::node_geo_exec;
+  ntype.declare = file_ns::node_declare;
+  nodeRegisterType(&ntype);
+}