Geometry Nodes: Get and set nodes for ID attribute

These nodes allow accessing and changing the stable/random ID used
for motion blur with instances and stable randomness.

Since rB40c3b8836b7a, the stable ID is a built-in attribute, so to be
consistent and allow changing it in the node tree like other built-in
attributes, it has get and set nodes.

2 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h
index 8daa96164ef..58fea6d462c 100644
--- a/source/blender/blenkernel/BKE_node.h
+++ b/source/blender/blenkernel/BKE_node.h
@@ -1549,6 +1549,8 @@ int ntreeTexExecTree(struct bNodeTree *ntree,
 #define GEO_NODE_INSTANCES_TO_POINTS 1131
 #define GEO_NODE_IMAGE_TEXTURE 1132
 #define GEO_NODE_VOLUME_TO_MESH 1133
+#define GEO_NODE_INPUT_ID 1134
+#define GEO_NODE_SET_ID 1135
 
 /** \} */
 
diff --git a/source/blender/blenkernel/intern/node.cc b/source/blender/blenkernel/intern/node.cc
index 8494c51a66e..d6c4e1f21e4 100644
--- a/source/blender/blenkernel/intern/node.cc
+++ b/source/blender/blenkernel/intern/node.cc
@@ -5804,6 +5804,7 @@ static void registerGeometryNodes()
   register_node_type_geo_image_texture();
   register_node_type_geo_input_curve_handles();
   register_node_type_geo_input_curve_tilt();
+  register_node_type_geo_input_id();
   register_node_type_geo_input_index();
   register_node_type_geo_input_material_index();
   register_node_type_geo_input_material();
@@ -5852,6 +5853,7 @@ static void registerGeometryNodes()
   register_node_type_geo_set_curve_handles();
   register_node_type_geo_set_curve_radius();
   register_node_type_geo_set_curve_tilt();
+  register_node_type_geo_set_id();
   register_node_type_geo_set_material_index();
   register_node_type_geo_set_material();
   register_node_type_geo_set_point_radius();