Depsgraph: Allow building scene properties

This is used by driers and this is a first step towards support of
scenes used for only compositor or sequencer.

Fixes T61014: Assert adding a driver that uses a single property of a scene ID

1 files changed, 41 insertions, 0 deletions

diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations_scene.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations_scene.cc
new file mode 100644
index 00000000000..d8672d35ddb
--- /dev/null
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations_scene.cc
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ *
+ * The Original Code is Copyright (C) 2013 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup depsgraph
+ */
+
+#include "intern/builder/deg_builder_relations.h"
+
+#include "DNA_scene_types.h"
+
+namespace DEG {
+
+void DepsgraphRelationBuilder::build_scene_parameters(Scene *scene)
+{
+  if (built_map_.checkIsBuiltAndTag(scene, BuilderMap::TAG_PARAMETERS)) {
+    return;
+  }
+  OperationKey parameters_eval_key(
+      &scene->id, NodeType::PARAMETERS, OperationCode::PARAMETERS_EVAL);
+  OperationKey scene_eval_key(&scene->id, NodeType::PARAMETERS, OperationCode::SCENE_EVAL);
+  add_relation(parameters_eval_key, scene_eval_key, "Parameters -> Scene Eval");
+}
+
+}  // namespace DEG