1 files changed, 139 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/legacy/node_geo_point_scale.cc b/source/blender/nodes/geometry/nodes/legacy/node_geo_point_scale.cc
new file mode 100644
index 00000000000..99adce149e9
--- /dev/null
+++ b/source/blender/nodes/geometry/nodes/legacy/node_geo_point_scale.cc
@@ -0,0 +1,139 @@
+/*
+ * 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 "BKE_colorband.h"
+
+#include "UI_interface.h"
+#include "UI_resources.h"
+
+#include "node_geometry_util.hh"
+
+namespace blender::nodes {
+
+static void geo_node_point_scale_declare(NodeDeclarationBuilder &b)
+{
+  b.add_input<decl::Geometry>("Geometry");
+  b.add_input<decl::String>("Factor");
+  b.add_input<decl::Vector>("Factor", "Factor_001")
+      .default_value({1.0f, 1.0f, 1.0f})
+      .subtype(PROP_XYZ);
+  b.add_input<decl::Float>("Factor", "Factor_002").default_value(1.0f).min(0.0f);
+  b.add_output<decl::Geometry>("Geometry");
+}
+
+static void geo_node_point_scale_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
+{
+  uiLayoutSetPropSep(layout, true);
+  uiLayoutSetPropDecorate(layout, false);
+  uiItemR(layout, ptr, "input_type", 0, IFACE_("Type"), ICON_NONE);
+}
+
+static void geo_node_point_scale_init(bNodeTree *UNUSED(tree), bNode *node)
+{
+  NodeGeometryPointScale *data = (NodeGeometryPointScale *)MEM_callocN(
+      sizeof(NodeGeometryPointScale), __func__);
+
+  data->input_type = GEO_NODE_ATTRIBUTE_INPUT_VECTOR;
+  node->storage = data;
+}
+
+static void geo_node_point_scale_update(bNodeTree *UNUSED(ntree), bNode *node)
+{
+  NodeGeometryPointScale &node_storage = *(NodeGeometryPointScale *)node->storage;
+
+  update_attribute_input_socket_availabilities(
+      *node, "Factor", (GeometryNodeAttributeInputMode)node_storage.input_type);
+}
+
+static void execute_on_component(GeoNodeExecParams params, GeometryComponent &component)
+{
+  /* Note that scale doesn't necessarily need to be created with a vector type-- it could also use
+   * the highest complexity of the existing attribute's type (if it exists) and the data type used
+   * for the factor. But for it's simpler to simply always use float3, since that is usually
+   * expected anyway. */
+  static const float3 scale_default = float3(1.0f);
+  OutputAttribute_Typed<float3> scale_attribute = component.attribute_try_get_for_output(
+      "scale", ATTR_DOMAIN_POINT, CD_PROP_FLOAT3, &scale_default);
+  if (!scale_attribute) {
+    return;
+  }
+
+  const bNode &node = params.node();
+  const NodeGeometryPointScale &node_storage = *(const NodeGeometryPointScale *)node.storage;
+  const GeometryNodeAttributeInputMode input_type = (GeometryNodeAttributeInputMode)
+                                                        node_storage.input_type;
+  const CustomDataType data_type = (input_type == GEO_NODE_ATTRIBUTE_INPUT_FLOAT) ? CD_PROP_FLOAT :
+                                                                                    CD_PROP_FLOAT3;
+
+  GVArrayPtr attribute = params.get_input_attribute(
+      "Factor", component, ATTR_DOMAIN_POINT, data_type, nullptr);
+  if (!attribute) {
+    return;
+  }
+
+  MutableSpan<float3> scale_span = scale_attribute.as_span();
+  if (data_type == CD_PROP_FLOAT) {
+    GVArray_Typed<float> factors{*attribute};
+    for (const int i : scale_span.index_range()) {
+      scale_span[i] = scale_span[i] * factors[i];
+    }
+  }
+  else if (data_type == CD_PROP_FLOAT3) {
+    GVArray_Typed<float3> factors{*attribute};
+    for (const int i : scale_span.index_range()) {
+      scale_span[i] = scale_span[i] * factors[i];
+    }
+  }
+
+  scale_attribute.save();
+}
+
+static void geo_node_point_scale_exec(GeoNodeExecParams params)
+{
+  GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
+
+  geometry_set = geometry_set_realize_instances(geometry_set);
+
+  if (geometry_set.has<MeshComponent>()) {
+    execute_on_component(params, geometry_set.get_component_for_write<MeshComponent>());
+  }
+  if (geometry_set.has<PointCloudComponent>()) {
+    execute_on_component(params, geometry_set.get_component_for_write<PointCloudComponent>());
+  }
+  if (geometry_set.has<CurveComponent>()) {
+    execute_on_component(params, geometry_set.get_component_for_write<CurveComponent>());
+  }
+
+  params.set_output("Geometry", std::move(geometry_set));
+}
+
+}  // namespace blender::nodes
+
+void register_node_type_geo_point_scale()
+{
+  static bNodeType ntype;
+
+  geo_node_type_base(&ntype, GEO_NODE_LEGACY_POINT_SCALE, "Point Scale", NODE_CLASS_GEOMETRY, 0);
+
+  ntype.declare = blender::nodes::geo_node_point_scale_declare;
+  node_type_init(&ntype, blender::nodes::geo_node_point_scale_init);
+  node_type_update(&ntype, blender::nodes::geo_node_point_scale_update);
+  node_type_storage(
+      &ntype, "NodeGeometryPointScale", node_free_standard_storage, node_copy_standard_storage);
+  ntype.geometry_node_execute = blender::nodes::geo_node_point_scale_exec;
+  ntype.draw_buttons = blender::nodes::geo_node_point_scale_layout;
+  nodeRegisterType(&ntype);
+}