1 files changed, 153 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_attribute_combine_xyz.cc b/source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_attribute_combine_xyz.cc
new file mode 100644
index 00000000000..7ba64c8db2b
--- /dev/null
+++ b/source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_attribute_combine_xyz.cc
@@ -0,0 +1,153 @@
+/*
+ * 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 "UI_interface.h"
+#include "UI_resources.h"
+
+#include "node_geometry_util.hh"
+
+namespace blender::nodes::node_geo_legacy_attribute_combine_xyz_cc {
+
+static void node_declare(NodeDeclarationBuilder &b)
+{
+  b.add_input<decl::Geometry>(N_("Geometry"));
+  b.add_input<decl::String>(N_("X"));
+  b.add_input<decl::Float>(N_("X"), "X_001");
+  b.add_input<decl::String>(N_("Y"));
+  b.add_input<decl::Float>(N_("Y"), "Y_001");
+  b.add_input<decl::String>(N_("Z"));
+  b.add_input<decl::Float>(N_("Z"), "Z_001");
+  b.add_input<decl::String>(N_("Result"));
+  b.add_output<decl::Geometry>(N_("Geometry"));
+}
+
+static void node_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
+{
+  uiLayoutSetPropSep(layout, true);
+  uiLayoutSetPropDecorate(layout, false);
+  uiLayout *col = uiLayoutColumn(layout, false);
+  uiItemR(col, ptr, "input_type_x", 0, IFACE_("X"), ICON_NONE);
+  uiItemR(col, ptr, "input_type_y", 0, IFACE_("Y"), ICON_NONE);
+  uiItemR(col, ptr, "input_type_z", 0, IFACE_("Z"), ICON_NONE);
+}
+
+static void node_init(bNodeTree *UNUSED(tree), bNode *node)
+{
+  NodeAttributeCombineXYZ *data = (NodeAttributeCombineXYZ *)MEM_callocN(
+      sizeof(NodeAttributeCombineXYZ), __func__);
+
+  data->input_type_x = GEO_NODE_ATTRIBUTE_INPUT_FLOAT;
+  data->input_type_y = GEO_NODE_ATTRIBUTE_INPUT_FLOAT;
+  data->input_type_z = GEO_NODE_ATTRIBUTE_INPUT_FLOAT;
+  node->storage = data;
+}
+
+static void node_update(bNodeTree *ntree, bNode *node)
+{
+  NodeAttributeCombineXYZ *node_storage = (NodeAttributeCombineXYZ *)node->storage;
+  update_attribute_input_socket_availabilities(
+      *ntree, *node, "X", (GeometryNodeAttributeInputMode)node_storage->input_type_x);
+  update_attribute_input_socket_availabilities(
+      *ntree, *node, "Y", (GeometryNodeAttributeInputMode)node_storage->input_type_y);
+  update_attribute_input_socket_availabilities(
+      *ntree, *node, "Z", (GeometryNodeAttributeInputMode)node_storage->input_type_z);
+}
+
+static AttributeDomain get_result_domain(const GeometryComponent &component,
+                                         const GeoNodeExecParams &params,
+                                         StringRef result_name)
+{
+  /* Use the domain of the result attribute if it already exists. */
+  std::optional<AttributeMetaData> result_info = component.attribute_get_meta_data(result_name);
+  if (result_info) {
+    return result_info->domain;
+  }
+
+  /* Otherwise use the highest priority domain from existing input attributes, or the default. */
+  return params.get_highest_priority_input_domain({"X", "Y", "Z"}, component, ATTR_DOMAIN_POINT);
+}
+
+static void combine_attributes(GeometryComponent &component, const GeoNodeExecParams &params)
+{
+  const std::string result_name = params.get_input<std::string>("Result");
+  if (result_name.empty()) {
+    return;
+  }
+  const AttributeDomain result_domain = get_result_domain(component, params, result_name);
+
+  OutputAttribute_Typed<float3> attribute_result =
+      component.attribute_try_get_for_output_only<float3>(result_name, result_domain);
+  if (!attribute_result) {
+    return;
+  }
+  VArray<float> attribute_x = params.get_input_attribute<float>(
+      "X", component, result_domain, 0.0f);
+  VArray<float> attribute_y = params.get_input_attribute<float>(
+      "Y", component, result_domain, 0.0f);
+  VArray<float> attribute_z = params.get_input_attribute<float>(
+      "Z", component, result_domain, 0.0f);
+
+  for (const int i : IndexRange(attribute_result->size())) {
+    const float x = attribute_x[i];
+    const float y = attribute_y[i];
+    const float z = attribute_z[i];
+    attribute_result->set(i, {x, y, z});
+  }
+  attribute_result.save();
+}
+
+static void node_geo_exec(GeoNodeExecParams params)
+{
+  GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
+
+  geometry_set = geometry::realize_instances_legacy(geometry_set);
+
+  if (geometry_set.has<MeshComponent>()) {
+    combine_attributes(geometry_set.get_component_for_write<MeshComponent>(), params);
+  }
+  if (geometry_set.has<PointCloudComponent>()) {
+    combine_attributes(geometry_set.get_component_for_write<PointCloudComponent>(), params);
+  }
+  if (geometry_set.has<CurveComponent>()) {
+    combine_attributes(geometry_set.get_component_for_write<CurveComponent>(), params);
+  }
+
+  params.set_output("Geometry", geometry_set);
+}
+
+}  // namespace blender::nodes::node_geo_legacy_attribute_combine_xyz_cc
+
+void register_node_type_geo_attribute_combine_xyz()
+{
+  namespace file_ns = blender::nodes::node_geo_legacy_attribute_combine_xyz_cc;
+
+  static bNodeType ntype;
+
+  geo_node_type_base(&ntype,
+                     GEO_NODE_LEGACY_ATTRIBUTE_COMBINE_XYZ,
+                     "Attribute Combine XYZ",
+                     NODE_CLASS_ATTRIBUTE,
+                     0);
+  node_type_init(&ntype, file_ns::node_init);
+  node_type_update(&ntype, file_ns::node_update);
+  node_type_storage(
+      &ntype, "NodeAttributeCombineXYZ", node_free_standard_storage, node_copy_standard_storage);
+
+  ntype.declare = file_ns::node_declare;
+  ntype.geometry_node_execute = file_ns::node_geo_exec;
+  ntype.draw_buttons = file_ns::node_layout;
+  nodeRegisterType(&ntype);
+}