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diff --git a/source/blender/makesdna/DNA_strands_types.h b/source/blender/makesdna/DNA_strands_types.h
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+/*
+ * Copyright 2015, Blender Foundation.
+ *
+ * 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 DNA_strands_types.h
+ *  \ingroup DNA
+ */
+
+#ifndef __DNA_STRANDS_TYPES_H__
+#define __DNA_STRANDS_TYPES_H__
+
+#include "DNA_defs.h"
+
+#include "DNA_meshdata_types.h"
+
+typedef struct StrandsVertex {
+	float co[3];
+	float base[3]; /* base shape, defining deformation for children */
+	float time;
+	float weight;
+	
+	/* utility data */
+	float nor[3]; /* normals (edge directions) */
+} StrandsVertex;
+
+typedef struct StrandsMotionState {
+	float co[3];
+	float vel[3];
+	
+	/* utility data */
+	float nor[3]; /* normals (edge directions) */
+} StrandsMotionState;
+
+typedef struct StrandsCurve {
+	int numverts;
+	float root_matrix[3][3];
+	
+	MSurfaceSample msurf;
+} StrandsCurve;
+
+typedef struct Strands {
+	StrandsCurve *curves;
+	StrandsVertex *verts;
+	int totcurves, totverts;
+	
+	/* optional */
+	StrandsMotionState *state;
+} Strands;
+
+
+typedef struct StrandsChildCurve {
+	int numverts;
+	float root_matrix[4][4];
+	int parents[4];
+	float parent_weights[4];
+	float cutoff; /* shortens the curve if 0 <= cutoff < numverts */
+} StrandsChildCurve;
+
+typedef struct StrandsChildCurveUV {
+	float uv[2];
+} StrandsChildCurveUV;
+
+typedef struct StrandsChildCurveVCol {
+	float vcol[3];
+} StrandsChildCurveVCol;
+
+typedef struct StrandsChildVertex {
+	float co[3];
+	float base[3]; /* undeformed shape */
+	float time;
+	
+	/* utility data */
+	float nor[3]; /* normals (edge directions) */
+} StrandsChildVertex;
+
+typedef struct StrandsChildren {
+	StrandsChildCurve *curves;
+	StrandsChildCurveUV *curve_uvs;
+	StrandsChildCurveVCol *curve_vcols;
+	StrandsChildVertex *verts;
+	int totcurves, totverts;
+	int numuv, numvcol; /* number of uv/vcol per curve */
+} StrandsChildren;
+
+#endif  /* __DNA_STRANDS_TYPES_H__ */