Modifier: Maintain per-modifier session UUID

Allows to keep track of modifiers, which is required, for example,
for runtime data preservation in depsgraph.

1 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index f9590696c2e..98dc411239e 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -413,9 +413,13 @@ void BKE_modifier_type_panel_id(ModifierType type, char *r_idname);
  * default values if pointer is optional.
  */
 struct ModifierData *BKE_modifier_new(int type);
+
 void BKE_modifier_free_ex(struct ModifierData *md, const int flag);
 void BKE_modifier_free(struct ModifierData *md);
 
+/* Generate new UUID for the given modifier. */
+void BKE_modifier_session_uuid_generate(struct ModifierData *md);
+
 bool BKE_modifier_unique_name(struct ListBase *modifiers, struct ModifierData *md);
 
 void BKE_modifier_copydata_generic(const struct ModifierData *md,
@@ -539,6 +543,8 @@ void BKE_modifier_deform_vertsEM(ModifierData *md,
 struct Mesh *BKE_modifier_get_evaluated_mesh_from_evaluated_object(struct Object *ob_eval,
                                                                    const bool get_cage_mesh);
 
+void BKE_modifier_check_uuids_unique_and_report(const struct Object *object);
+
 #ifdef __cplusplus
 }
 #endif