1 files changed, 67 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/scene_graph/SceneHash.h b/source/blender/freestyle/intern/scene_graph/SceneHash.h
new file mode 100644
index 00000000000..8f5f847eaab
--- /dev/null
+++ b/source/blender/freestyle/intern/scene_graph/SceneHash.h
@@ -0,0 +1,67 @@
+/*
+ * ***** 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.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __FREESTYLE_SCENE_HASH_H__
+#define __FREESTYLE_SCENE_HASH_H__
+
+/** \file blender/freestyle/intern/scene_graph/SceneHash.h
+ *  \ingroup freestyle
+ */
+
+#include "IndexedFaceSet.h"
+#include "SceneVisitor.h"
+
+#ifdef WITH_CXX_GUARDEDALLOC
+#include "MEM_guardedalloc.h"
+#endif
+
+namespace Freestyle {
+
+class SceneHash : public SceneVisitor
+{
+public:
+	inline SceneHash() : SceneVisitor()
+	{
+		_hashcode = 0.0;
+	}
+
+	virtual ~SceneHash() {}
+
+	VISIT_DECL(IndexedFaceSet)
+
+	inline real getValue() {
+		return _hashcode;
+	}
+
+	inline void reset() {
+		_hashcode = 0.0;
+	}
+
+private:
+	real _hashcode;
+
+#ifdef WITH_CXX_GUARDEDALLOC
+	MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:SceneHash")
+#endif
+};
+
+} /* namespace Freestyle */
+
+#endif // __FREESTYLE_SCENE_HASH_H__