Geometry Nodes: Add Nodes to Get/Set Built-in Attributes

This commit implements T91780, adding nodes to get and set builtin
attributes. Individual set nodes are used so that the values can be
exposed for direct editing, which is useful for attributes like shade
smooth and spline resolution. Individual input nodes are used to allow
reusing nodes for multiple components, and to allow grouping multiple
outputs conceptually in the same node in the future.

Input Nodes
 - Radius
 - Curve Tilt
 - Curve Handle Positions
 - Is Shade Smooth
 - Spline Resolution
 - Is Spline Cyclic

'Set' Nodes
 - Curve Radius
 - Point Radius
 - Curve Tilt
 - Curve Handle Positions
 - Is Shade Smooth
 - Spline Resolution
 - Is Spline Cyclic

Using hardcoded categories is necessary to add separators to the node
menu.

Differential Revision: https://developer.blender.org/D12687

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 9c1ce0d7bc4..47b2c7ea5c6 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -9689,6 +9689,18 @@ static void def_geo_legacy_curve_set_handles(StructRNA *srna)
   RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_socket_update");
 }
 
+static void def_geo_curve_set_handle_positions(StructRNA *srna)
+{
+  PropertyRNA *prop;
+
+  RNA_def_struct_sdna_from(srna, "NodeGeometrySetCurveHandlePositions", "storage");
+
+  prop = RNA_def_property(srna, "mode", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_items(prop, rna_node_geometry_curve_handle_side_items);
+  RNA_def_property_ui_text(prop, "Mode", "Whether to update left and right handles");
+  RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_socket_update");
+}
+
 static void def_geo_curve_select_handles(StructRNA *srna)
 {
   PropertyRNA *prop;