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diff --git a/source/blender/alembic/intern/abc_writer_transform.h b/source/blender/alembic/intern/abc_writer_transform.h
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+++ b/source/blender/alembic/intern/abc_writer_transform.h
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+/*
+ * 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.
+ */
+
+/** \file
+ * \ingroup balembic
+ */
+
+#ifndef __ABC_WRITER_TRANSFORM_H__
+#define __ABC_WRITER_TRANSFORM_H__
+
+#include "abc_writer_object.h"
+
+#include <Alembic/AbcGeom/All.h>
+
+class AbcTransformWriter : public AbcObjectWriter {
+  Alembic::AbcGeom::OXform m_xform;
+  Alembic::AbcGeom::OXformSchema m_schema;
+  Alembic::AbcGeom::XformSample m_sample;
+  Alembic::AbcGeom::OVisibilityProperty m_visibility;
+  Alembic::Abc::M44d m_matrix;
+
+  bool m_is_animated;
+  bool m_inherits_xform;
+
+ public:
+  Object *m_proxy_from;
+
+ public:
+  AbcTransformWriter(Object *ob,
+                     const Alembic::AbcGeom::OObject &abc_parent,
+                     AbcTransformWriter *parent,
+                     unsigned int time_sampling,
+                     ExportSettings &settings);
+
+  Alembic::AbcGeom::OXform &alembicXform()
+  {
+    return m_xform;
+  }
+  virtual Imath::Box3d bounds();
+
+ private:
+  virtual void do_write();
+
+  bool hasAnimation(Object *ob) const;
+};
+
+#endif /* __ABC_WRITER_TRANSFORM_H__ */