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diff --git a/source/blender/depsgraph/intern/node/deg_node_time.h b/source/blender/depsgraph/intern/node/deg_node_time.h
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+++ b/source/blender/depsgraph/intern/node/deg_node_time.h
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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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.
+ *
+ * Original Author: Joshua Leung
+ * Contributor(s): None Yet
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file depsgraph/intern/node/deg_node_time.h
+ *  \ingroup depsgraph
+ */
+
+#pragma once
+
+#include "intern/node/deg_node.h"
+
+namespace DEG {
+
+/* Time Source Node. */
+struct TimeSourceNode : public Node {
+	/* New "current time". */
+	float cfra;
+
+	/* time-offset relative to the "official" time source that this one has. */
+	float offset;
+
+	// TODO: evaluate() operation needed
+
+	virtual void tag_update(Depsgraph *graph, eUpdateSource source) override;
+
+	DEG_DEPSNODE_DECLARE;
+};
+
+}  // namespace DEG