[Bf-blender-cvs] [10b048fd9e5] master: Fix T99885: Invalid dependency graph state when curves surface is invisible

[Sergey Sharybin]

Commit: 10b048fd9e51affa7d36022b32b24e489cfd0cbd
Author: Sergey Sharybin
Date:   Thu Jul 21 11:25:24 2022 +0200
Branches: master
https://developer.blender.org/rB10b048fd9e51affa7d36022b32b24e489cfd0cbd

Fix T99885: Invalid dependency graph state when curves surface is invisible

Differential Revision: https://developer.blender.org/D15510

===================================================================

M	source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
M	source/blender/depsgraph/intern/builder/deg_builder_relations.cc

===================================================================

diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
index c65c4beeed6..4cbb2ce7060 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
@@ -26,6 +26,7 @@
 #include "DNA_collection_types.h"
 #include "DNA_constraint_types.h"
 #include "DNA_curve_types.h"
+#include "DNA_curves_types.h"
 #include "DNA_effect_types.h"
 #include "DNA_gpencil_types.h"
 #include "DNA_key_types.h"
@@ -1563,8 +1564,14 @@ void DepsgraphNodeBuilder::build_object_data_geometry_datablock(ID *obdata)
       break;
     }
     case ID_CV: {
+      Curves *curves_id = reinterpret_cast<Curves *>(obdata);
+
       op_node = add_operation_node(obdata, NodeType::GEOMETRY, OperationCode::GEOMETRY_EVAL);
       op_node->set_as_entry();
+
+      if (curves_id->surface != nullptr) {
+        build_object(-1, curves_id->surface, DEG_ID_LINKED_INDIRECTLY, false);
+      }
       break;
     }
     case ID_PT: {
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index f2646ebc1f1..1269ebeda4e 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -27,6 +27,7 @@
 #include "DNA_collection_types.h"
 #include "DNA_constraint_types.h"
 #include "DNA_curve_types.h"
+#include "DNA_curves_types.h"
 #include "DNA_effect_types.h"
 #include "DNA_gpencil_types.h"
 #include "DNA_key_types.h"
@@ -2426,8 +2427,16 @@ void DepsgraphRelationBuilder::build_object_data_geometry_datablock(ID *obdata)
       }
       break;
     }
-    case ID_CV:
+    case ID_CV: {
+      Curves *curves_id = reinterpret_cast<Curves *>(obdata);
+      if (curves_id->surface != nullptr) {
+        build_object(curves_id->surface);
+
+        /* The relations between the surface and the curves are handled as part of the modifier
+         * stack building. */
+      }
       break;
+    }
     case ID_PT:
       break;
     case ID_VO: {