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diff --git a/source/blender/io/alembic/exporter/abc_writer_mesh.h b/source/blender/io/alembic/exporter/abc_writer_mesh.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.
+ */
+#pragma once
+
+/** \file
+ * \ingroup balembic
+ */
+
+#include "abc_writer_abstract.h"
+#include "intern/abc_customdata.h"
+
+#include <Alembic/AbcGeom/OPolyMesh.h>
+#include <Alembic/AbcGeom/OSubD.h>
+
+struct ModifierData;
+
+namespace blender {
+namespace io {
+namespace alembic {
+
+/* Writer for Alembic geometry. Does not assume the object is a mesh object. */
+class ABCGenericMeshWriter : public ABCAbstractWriter {
+ private:
+  /* Either polymesh or subd is used, depending on is_subd_.
+   * References to the schema must be kept, or Alembic will not properly write. */
+  Alembic::AbcGeom::OPolyMesh abc_poly_mesh_;
+  Alembic::AbcGeom::OPolyMeshSchema abc_poly_mesh_schema_;
+
+  Alembic::AbcGeom::OSubD abc_subdiv_;
+  Alembic::AbcGeom::OSubDSchema abc_subdiv_schema_;
+
+  /* Determines whether a poly mesh or a subdivision surface is exported.
+   * The value is set by an export option but only true if there is a subdivision modifier on the
+   * exported object. */
+  bool is_subd_;
+  ModifierData *subsurf_modifier_;
+  ModifierData *liquid_sim_modifier_;
+
+  CDStreamConfig m_custom_data_config;
+
+ public:
+  explicit ABCGenericMeshWriter(const ABCWriterConstructorArgs &args);
+  virtual ~ABCGenericMeshWriter();
+
+  virtual void create_alembic_objects(const HierarchyContext *context) override;
+  virtual const Alembic::Abc::OObject get_alembic_object() const;
+
+ protected:
+  virtual bool is_supported(const HierarchyContext *context) const override;
+  virtual void do_write(HierarchyContext &context) override;
+
+  virtual Mesh *get_export_mesh(Object *object_eval, bool &r_needsfree) = 0;
+  virtual void free_export_mesh(Mesh *mesh);
+
+  virtual bool export_as_subdivision_surface(Object *ob_eval) const;
+
+ private:
+  void write_mesh(HierarchyContext &context, Mesh *mesh);
+  void write_subd(HierarchyContext &context, Mesh *mesh);
+  template<typename Schema> void write_face_sets(Object *object, Mesh *mesh, Schema &schema);
+
+  ModifierData *get_liquid_sim_modifier(Scene *scene_eval, Object *ob_eval);
+
+  void write_arb_geo_params(Mesh *me);
+  void get_velocities(Mesh *mesh, std::vector<Imath::V3f> &vels);
+  void get_geo_groups(Object *object,
+                      Mesh *mesh,
+                      std::map<std::string, std::vector<int32_t>> &geo_groups);
+};
+
+/* Writer for Alembic geometry of Blender Mesh objects. */
+class ABCMeshWriter : public ABCGenericMeshWriter {
+ public:
+  ABCMeshWriter(const ABCWriterConstructorArgs &args);
+
+ protected:
+  virtual Mesh *get_export_mesh(Object *object_eval, bool &r_needsfree) override;
+};
+
+}  // namespace alembic
+}  // namespace io
+}  // namespace blender